CN116712857B - Air purifying agent and preparation method thereof - Google Patents
Air purifying agent and preparation method thereof Download PDFInfo
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- CN116712857B CN116712857B CN202310725653.5A CN202310725653A CN116712857B CN 116712857 B CN116712857 B CN 116712857B CN 202310725653 A CN202310725653 A CN 202310725653A CN 116712857 B CN116712857 B CN 116712857B
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- titanium oxide
- water
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- purifying agent
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- 239000012629 purifying agent Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 84
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 67
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 239000011259 mixed solution Substances 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 21
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 20
- 239000000661 sodium alginate Substances 0.000 claims abstract description 20
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims abstract description 18
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 18
- 235000002867 manganese chloride Nutrition 0.000 claims abstract description 18
- 239000011565 manganese chloride Substances 0.000 claims abstract description 18
- 229940099607 manganese chloride Drugs 0.000 claims abstract description 18
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims abstract description 18
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 18
- GFISHBQNVWAVFU-UHFFFAOYSA-K terbium(iii) chloride Chemical compound Cl[Tb](Cl)Cl GFISHBQNVWAVFU-UHFFFAOYSA-K 0.000 claims abstract description 18
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 17
- 239000008158 vegetable oil Substances 0.000 claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 229920000136 polysorbate Polymers 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000004945 emulsification Methods 0.000 claims abstract description 9
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims abstract description 6
- 229940068984 polyvinyl alcohol Drugs 0.000 claims abstract description 5
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims abstract description 5
- 229960005196 titanium dioxide Drugs 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 33
- 238000002156 mixing Methods 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000012266 salt solution Substances 0.000 claims description 21
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 16
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 14
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 14
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 14
- 229920001690 polydopamine Polymers 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- 229920001661 Chitosan Polymers 0.000 claims description 12
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 9
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 9
- 229920000053 polysorbate 80 Polymers 0.000 claims description 9
- 230000032683 aging Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 8
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000004108 freeze drying Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 18
- 239000003054 catalyst Substances 0.000 abstract description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 40
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- -1 aromatics Chemical class 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 229910052771 Terbium Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 230000001699 photocatalysis Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- LNETULKMXZVUST-UHFFFAOYSA-N 1-naphthoic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=CC2=C1 LNETULKMXZVUST-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- MSFSPUZXLOGKHJ-UHFFFAOYSA-N Muraminsaeure Natural products OC(=O)C(C)OC1C(N)C(O)OC(CO)C1O MSFSPUZXLOGKHJ-UHFFFAOYSA-N 0.000 description 2
- 108010013639 Peptidoglycan Proteins 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- NPNUFJAVOOONJE-ZIAGYGMSSA-N β-(E)-Caryophyllene Chemical compound C1CC(C)=CCCC(=C)[C@H]2CC(C)(C)[C@@H]21 NPNUFJAVOOONJE-ZIAGYGMSSA-N 0.000 description 2
- AYXPYQRXGNDJFU-QTPLKFIXSA-N (-)-Globulol Chemical compound [C@H]1([C@](CC[C@@H]2[C@H]3C2(C)C)(C)O)[C@H]3[C@H](C)CC1 AYXPYQRXGNDJFU-QTPLKFIXSA-N 0.000 description 1
- AYXPYQRXGNDJFU-QUMMREBQSA-N (-)-Globulol Natural products O[C@@]1(C)[C@H]2[C@H]([C@H](C)CC2)[C@@H]2C(C)(C)[C@@H]2CC1 AYXPYQRXGNDJFU-QUMMREBQSA-N 0.000 description 1
- SCPADBBISMMJAW-JDIROBOTSA-N (8r,9s,10s,13s,14s,17r)-17-(1-hydroxyethyl)-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,14,15,16-tetradecahydrocyclopenta[a]phenanthrene-3,17-diol Chemical compound C1CC2CC(O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(O)C)(O)[C@@]1(C)CC2 SCPADBBISMMJAW-JDIROBOTSA-N 0.000 description 1
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- 239000001707 (E,7R,11R)-3,7,11,15-tetramethylhexadec-2-en-1-ol Substances 0.000 description 1
- AVHNDAZRNRAYTP-UHFFFAOYSA-N 7-Tetradecenal Natural products CCCCCCC=CCCCCCC=O AVHNDAZRNRAYTP-UHFFFAOYSA-N 0.000 description 1
- AVHNDAZRNRAYTP-BQYQJAHWSA-N 7-tetradecenal Chemical compound CCCCCC\C=C\CCCCCC=O AVHNDAZRNRAYTP-BQYQJAHWSA-N 0.000 description 1
- NVEQFIOZRFFVFW-UHFFFAOYSA-N 9-epi-beta-caryophyllene oxide Natural products C=C1CCC2OC2(C)CCC2C(C)(C)CC21 NVEQFIOZRFFVFW-UHFFFAOYSA-N 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- RMFGNMMNUZWCRZ-UHFFFAOYSA-N Humulone Natural products CC(C)CC(=O)C1=C(O)C(O)(CC=C(C)C)C(O)=C(CC=C(C)C)C1=O RMFGNMMNUZWCRZ-UHFFFAOYSA-N 0.000 description 1
- CKZXONNJVHXSQM-UHFFFAOYSA-N Ledol Natural products CC(C)C1CCC(C)(O)C2C3CC(C)CC123 CKZXONNJVHXSQM-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 102000004316 Oxidoreductases Human genes 0.000 description 1
- 108090000854 Oxidoreductases Proteins 0.000 description 1
- BLUHKGOSFDHHGX-UHFFFAOYSA-N Phytol Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)C=CO BLUHKGOSFDHHGX-UHFFFAOYSA-N 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- HNZBNQYXWOLKBA-UHFFFAOYSA-N Tetrahydrofarnesol Natural products CC(C)CCCC(C)CCCC(C)=CCO HNZBNQYXWOLKBA-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- BOTWFXYSPFMFNR-OALUTQOASA-N all-rac-phytol Natural products CC(C)CCC[C@H](C)CCC[C@H](C)CCCC(C)=CCO BOTWFXYSPFMFNR-OALUTQOASA-N 0.000 description 1
- FAMPSKZZVDUYOS-UHFFFAOYSA-N alpha-Caryophyllene Natural products CC1=CCC(C)(C)C=CCC(C)=CCC1 FAMPSKZZVDUYOS-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- NPNUFJAVOOONJE-UHFFFAOYSA-N beta-cariophyllene Natural products C1CC(C)=CCCC(=C)C2CC(C)(C)C21 NPNUFJAVOOONJE-UHFFFAOYSA-N 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 229940117948 caryophyllene Drugs 0.000 description 1
- NPNUFJAVOOONJE-UONOGXRCSA-N caryophyllene Natural products C1CC(C)=CCCC(=C)[C@@H]2CC(C)(C)[C@@H]21 NPNUFJAVOOONJE-UONOGXRCSA-N 0.000 description 1
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical group OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 1
- SVURIXNDRWRAFU-OGMFBOKVSA-N cedrol Chemical compound C1[C@]23[C@H](C)CC[C@H]3C(C)(C)[C@@H]1[C@@](O)(C)CC2 SVURIXNDRWRAFU-OGMFBOKVSA-N 0.000 description 1
- 229940026455 cedrol Drugs 0.000 description 1
- PCROEXHGMUJCDB-UHFFFAOYSA-N cedrol Natural products CC1CCC2C(C)(C)C3CC(C)(O)CC12C3 PCROEXHGMUJCDB-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- VMSLCPKYRPDHLN-NRFANRHFSA-N humulone Chemical compound CC(C)CC(=O)C1=C(O)C(CC=C(C)C)=C(O)[C@@](O)(CC=C(C)C)C1=O VMSLCPKYRPDHLN-NRFANRHFSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- SVURIXNDRWRAFU-UHFFFAOYSA-N juniperanol Natural products C1C23C(C)CCC3C(C)(C)C1C(O)(C)CC2 SVURIXNDRWRAFU-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910003445 palladium oxide Inorganic materials 0.000 description 1
- JQPTYAILLJKUCY-UHFFFAOYSA-N palladium(ii) oxide Chemical compound [O-2].[Pd+2] JQPTYAILLJKUCY-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- RGHWXPPXQQVOKA-UHFFFAOYSA-N phenanthrene-1-carbaldehyde Chemical compound C1=CC2=CC=CC=C2C2=C1C(C=O)=CC=C2 RGHWXPPXQQVOKA-UHFFFAOYSA-N 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- BOTWFXYSPFMFNR-PYDDKJGSSA-N phytol Chemical compound CC(C)CCC[C@@H](C)CCC[C@@H](C)CCC\C(C)=C\CO BOTWFXYSPFMFNR-PYDDKJGSSA-N 0.000 description 1
- 230000004260 plant-type cell wall biogenesis Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910003451 terbium oxide Inorganic materials 0.000 description 1
- SCRZPWWVSXWCMC-UHFFFAOYSA-N terbium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Tb+3].[Tb+3] SCRZPWWVSXWCMC-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229960000859 tulobuterol Drugs 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides an air purifying agent and a preparation method thereof, wherein the preparation method comprises the following steps: s100, preparing a first suspension by adopting raw materials including palladium chloride, terbium chloride, manganese chloride, titanium oxide, sodium alginate, sodium bicarbonate, polyvinyl alcohol and water; s200, preparing a second suspension by adopting raw materials including tween, active carbon and vegetable oil; s300, dropwise adding the first suspension of the S100 into the second suspension of the S200, and performing ultrasonic emulsification to obtain a mixed solution; and S400, delivering the mixed solution of the step S300 into a reaction kettle, heating and pressurizing, separating solid matters, and drying to obtain the air purifying agent. The preparation method disclosed by the invention can promote the titanium oxide catalyst to be uniformly dispersed in the porous active carbon, so that the air purifying agent with excellent purifying effect is obtained, and the preparation method is especially suitable for air purifying treatment in environments such as animal farms.
Description
Technical Field
The invention relates to the technical field of separation and purification of harmful substances in waste gas by utilizing a catalytic method, in particular to an air purifying agent and a preparation method thereof.
Background
The air purifying agent adsorbs and decomposes harmful substances in the air by physical, chemical and other modes, and can effectively control the air pollution condition in certain closed spaces (such as indoor, in-vehicle, in-factory buildings and the like). For example, in the environment of animal farms, where livestock emit gases mainly including amines (especially ammonia), sulfides, aromatics, fatty acids, and the like. The air pollutants can reduce the feed intake and the disease resistance of livestock and can also cause harm to the health of breeding personnel. The modes of deodorizing and purifying air in farms include: physical methods such as activated carbon, water curtain, deodorization tower, etc. further include: fungi, bacillus, and the like, and chemical means utilizing redox reactions.
In the prior art, porous materials are adopted for adsorption purification, and the method is an effective purification mode. In order to further improve the purification effect, the prior art generally adopts substances such as titanium dioxide, potassium permanganate and the like to promote the decomposition of harmful substances in the waste gas.
For example, chinese patent publication No. CN106268299B discloses a method for preparing an air purifying material by catalytic oxidation of a microporous medium, which comprises mixing an oxidant solution with a microporous medium matrix to obtain a mixed solution, placing the mixed solution in an autoclave, filtering and autoclaved loading, and finally drying and developing the autoclaved loaded microporous medium matrix.
For another example, chinese patent publication No. CN112973437B discloses a formaldehyde removal master batch for an air purification device, which includes a noble metal supported titanium dioxide nano array tube catalyst, opal shale, a silane coupling agent, an accelerator, a dispersant, and absolute ethanol.
As is clear from the analysis of the prior art, the porous material has a relatively limited effect of purifying exhaust gas by adsorption, and is preferably used together with a highly oxidizing agent or a highly photocatalytic catalyst capable of promoting decomposition of harmful substances in exhaust gas, such as titanium dioxide and potassium permanganate.
However, the above-mentioned oxidizing agent or catalyst is not easily uniformly dispersed and supported in the porous material, resulting in an improvement in air purification efficiency thereof, which is a pain spot to be solved by those skilled in the art.
Disclosure of Invention
The problem addressed by the present invention is how to allow titanium oxide catalysts to be uniformly dispersed and supported in porous activated carbon materials.
In order to solve the above problems, the present invention provides a method for preparing an air purifying agent, comprising:
s100, preparing a first suspension by adopting raw materials including palladium chloride, terbium chloride, manganese chloride, titanium oxide, sodium alginate, sodium bicarbonate, polyvinyl alcohol and water;
s200, preparing a second suspension by adopting raw materials including tween, active carbon and vegetable oil;
s300, dropwise adding the first suspension of the S100 into the second suspension of the S200, and performing ultrasonic emulsification to obtain a mixed solution;
and S400, delivering the mixed solution of the step S300 into a reaction kettle, heating and pressurizing, separating solid matters, and drying to obtain the air purifying agent.
In any of the above technical solutions, S100 specifically includes:
s110, uniformly mixing palladium chloride, terbium chloride and manganese chloride in water to obtain a metal salt solution;
s120, uniformly mixing sodium hexametaphosphate and titanium oxide in water to obtain titanium oxide suspension;
s130, dropwise adding the metal salt solution of S110 into the titanium oxide suspension of S120, stirring, adjusting the pH value to 11-12 after dropwise adding, stirring, aging, filtering, washing, drying and calcining to obtain modified titanium oxide;
and S140, uniformly mixing the sodium alginate, the sodium bicarbonate and the modified titanium oxide and the polyvinyl alcohol obtained in the step 130 in water to obtain a first suspension.
In any of the above embodiments, in S110, palladium chloride: terbium chloride: manganese chloride: water= (0.02-0.04): (0.1-0.2): (2-4): 20, a step of; and/or in S120, sodium hexametaphosphate: titanium oxide: water= (0.2-0.4): (10-20): 100; and/or in S130, a metal salt solution: titanium oxide suspension= (6-8): 100; and/or in S140, sodium alginate: sodium bicarbonate: modified titanium oxide: polyvinyl alcohol: water= (2-4): (6-8): (10-20): (20-30): 100.
in any of the above technical solutions, in S130, the stirring time is 20min to 40min; and/or in S130, the aging time is 4 to 6 hours; and/or in S130, washing with ethanol or acetone for 2 to 3 times; and/or in S130, the temperature of drying is 80-120 ℃ and the time of drying is 2-4 h; and/or in S130, the temperature of calcination is 450 ℃ to 650 ℃ and the time of calcination is 1h to 3h.
In any of the above technical solutions, S200 specifically includes:
s210, according to Tween: activated carbon: vegetable oil= (6-8): (15-25): 100 mass ratio, adding tween and active carbon into vegetable oil, heating and stirring to obtain a second suspension.
In any of the above embodiments, in S210, the temperature condition of the temperature increase is 50 ℃ to 60 ℃; and/or in S210, stirring for a period of 20min to 40min; and/or in S210, tween comprises tween 60 and/or tween 80.
In any of the above technical solutions, S300 specifically includes:
s310, according to the first suspension liquid drops: second suspension= (5-15): 100 mass ratio, dripping the first suspension of S100 into the second suspension of S200, and performing ultrasonic emulsification at the temperature of 40-60 ℃ to obtain a mixed solution.
In any of the above technical solutions, S400 specifically includes:
s410, sending the mixed solution of the step S300 into a reaction kettle, controlling the reaction kettle to be heated to a temperature of 50-55 ℃ under a closed condition, and preserving heat for 40-60 min;
s420, preserving heat and controlling the pressure of the reaction kettle to be 7.5MPa to 8.5MPa, and preserving heat and pressure for 2h to 4h;
s430, decompressing and cooling, separating solid matters from the reaction kettle, and drying to obtain the air purifying agent.
In any of the above technical solutions, the preparation method further includes:
s510, according to polydopamine: trimethylmethanol= (80-90): 100 mass ratio, uniformly mixing polydopamine and trimethyl methanol to obtain a first material;
s520, vinyl trimethoxy silane: chitosan: water= (1-2): (2-4): 100 mass ratio, uniformly mixing vinyl trimethoxy silane and chitosan in water to obtain a second material;
s530, according to the first material: second material = 1:1, dropwise adding a first material into a second material, and mixing for 2-3 hours to obtain a spray;
s540, spraying: air cleaner= (5-15): 100 mass ratio, spraying the spray material on the surface of the air purifying agent, freeze-drying, heating at the temperature of 85-90 ℃ for 1-2 h, and cooling.
In any of the above embodiments, the air purifier obtained in S400 can be used in combination with a deodorizing component of a natural plant functional extract.
The natural plant functional extract comprises caryophyllene, humulone, cedrol, n-hexadecanoic acid, phytol, linoleic acid, 7-tetradecenal, pregnane-3, 17, 20-triol, 1-phenanthrenealdehyde, cis-tulobuterol, iron yellow, 1-naphthoic acid, (-) -Globulol, and Argadine diol. The natural plant functional extract is combined with peptidoglycan to precipitate peptidoglycan, thereby preventing bacterial cell wall formation and achieving antibacterial effect. Meanwhile, the catalyst can react with active oxide to generate hydrogen peroxide so as to play a role in bacteriostasis. In addition, the natural plant functional extract can realize the strong activity of separating unpaired electrons, can play an antioxidant role by scavenging free radicals, chelating metal ions and inhibiting oxidase activity, and can play an indirect antioxidant role by protecting endogenous antioxidant enzymes of organisms. Its molecules quench free radicals through hydrogen atom transfer and single electron transfer mechanisms.
The invention also provides an air purifying agent which is obtained by adopting the preparation method according to any one of the technical schemes.
Advantageous effects
The invention provides a preparation method of an air purifying agent, which comprises the steps of firstly preparing a first suspension by adopting raw materials including palladium chloride, terbium chloride, manganese chloride, titanium oxide, sodium alginate, sodium bicarbonate, polyvinyl alcohol and water. The invention further adopts the raw materials comprising tween, active carbon and vegetable oil to prepare the second suspension. Finally, the first suspension is added into the second suspension in a dropwise manner to obtain a mixed solution, the mixed solution is sent into a reaction kettle, and the mixed solution is heated and pressurized, separated into solid matters and dried to obtain the air purifying agent. Through the technical scheme, the invention utilizes the photocatalysis effect of titanium oxide and the adsorption effect of activated carbon to purify air. In addition, the invention can promote the uniform dispersion of the titanium oxide catalyst in the porous active carbon by preparing the titanium oxide catalyst and the active carbon into emulsion and heating and pressurizing the emulsion, thereby improving the air purifying effect.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The embodiment of the invention provides a preparation method of an air purifying agent, which comprises the following steps:
s100, preparing a first suspension by adopting raw materials including palladium chloride, terbium chloride, manganese chloride, titanium oxide, sodium alginate, sodium bicarbonate, polyvinyl alcohol and water;
s200, preparing a second suspension by adopting raw materials including tween, active carbon and vegetable oil;
s300, dropwise adding the first suspension of the S100 into the second suspension of the S200, and performing ultrasonic emulsification to obtain a mixed solution;
and S400, delivering the mixed solution of the step S300 into a reaction kettle, heating and pressurizing, separating solid matters, and drying to obtain the air purifying agent.
Titanium oxide acts as a photoactive catalyst that is capable of decomposing organic contaminants in air upon photon excitation. The metal ions palladium and terbium have sensitization effect on titanium oxide, and especially terbium can promote titanium oxide with narrow forbidden band width to absorb and utilize photons of more wavebands. Therefore, the titanium oxide can generate corresponding holes on the valence band by exciting electrons on the valence band to transfer to the conduction band under the action of ultraviolet light or sunlight, the photo-generated holes promote the generation of hydroxyl free radicals, the photo-generated electrons promote the generation of superoxide anions, and the hydroxyl free radicals and the superoxide anions have stronger oxidation-reduction potentials, so that organic pollutants such as formaldehyde are oxidized and decomposed into carbon dioxide and water, and the aim of decomposing the organic pollutants is fulfilled. Based on the principle, the air purifying agent prepared by the method can purify air by utilizing the photocatalysis effect of titanium oxide and the adsorption effect of activated carbon. In addition, the titanium oxide catalyst and the activated carbon are prepared into an emulsion mixture and are subjected to heating and pressurizing treatment, so that the titanium oxide catalyst can be uniformly dispersed in the porous activated carbon, and the air purifying effect is improved.
In some embodiments of the present invention, S100 specifically includes:
s110, palladium chloride: terbium chloride: manganese chloride: water= (0.02-0.04): (0.1-0.2): (2-4): 20, uniformly mixing palladium chloride, terbium chloride and manganese chloride in water to obtain a metal salt solution;
s120, according to sodium hexametaphosphate: titanium oxide: water= (0.2-0.4): (10-20): 100 mass ratio, uniformly mixing sodium hexametaphosphate and titanium oxide in water to obtain titanium oxide suspension;
s130, according to a metal salt solution: titanium oxide suspension= (6-8): 100 mass ratio, dropwise adding the metal salt solution of S110 into the titanium oxide suspension of S120, stirring, adjusting the pH value to 11-12 after dropwise adding, stirring for 20-40 min, aging for 4-6 h, filtering, washing with ethanol or acetone for 2-3 times, drying at 80-120 ℃ for 2-4 h, and calcining at 450-650 ℃ for 1-3 h to obtain modified titanium oxide;
s140, according to sodium alginate: sodium bicarbonate: modified titanium oxide: polyvinyl alcohol: water= (2-4): (6-8): (10-20): (20-30): 100 mass ratio, uniformly mixing sodium alginate, sodium bicarbonate, modified titanium oxide obtained in S130 and polyvinyl alcohol in water to obtain a first suspension.
Preferably, in S110, palladium chloride: terbium chloride: manganese chloride: water = 0.02:0.2:4:20.
preferably, in S120, sodium hexametaphosphate: titanium oxide: water = 0.2:15:100.
preferably, in S130, the metal salt solution: titanium oxide suspension = 6:100.
preferably, in S140, sodium alginate: sodium bicarbonate: modified titanium oxide: polyvinyl alcohol: water = 4:6:20:25:100.
preferably, in S130, the pH is adjusted by a 6wt% aqueous sodium hydroxide solution.
It is understood that the metal salt solution obtained in S110 is a mixed chloride salt of metal palladium, terbium and manganese. Sodium hexametaphosphate is used as a dispersing agent to promote the titanium oxide to be dispersed into suspension in water. The mixed chloride salt of palladium, terbium and manganese metal can be mixed with the titanium oxide suspension by dropping the metal salt solution of S110 into the titanium oxide suspension of S120 and stirring. At a pH of 11-12, the metal ions bind to hydroxyl groups to form hydroxide precipitates on the surface of the titanium oxide particles. By calcination, the unstable hydroxide is converted into an oxide, thereby obtaining a modified titanium oxide. Palladium oxide and terbium oxide can improve the photocatalytic performance of the modified titanium oxide. Manganese oxide imparts excellent oxidation properties to the air cleaner.
In some embodiments of the present invention, S200 specifically includes:
s210, according to Tween: activated carbon: vegetable oil= (6-8): (15-25): 100 mass ratio, adding tween and active carbon into vegetable oil, heating to 50-60 ℃ and stirring for 20-40 min to obtain a second suspension.
Preferably, in S210, tween comprises tween 60 and/or tween 80.
Preferably, in S210, tween: activated carbon: vegetable oil = 6:25:100.
it is understood that the second suspension is an oily suspension of activated carbon. Tween was used as an emulsifier. The operation of warming and stirring promotes a relatively uniform dispersion of the activated carbon in the vegetable oil.
In some embodiments of the present invention, S300 specifically includes:
s310, according to the first suspension liquid drops: second suspension= (5-15): 100 mass ratio, dripping the first suspension of S100 into the second suspension of S200, and performing ultrasonic emulsification at the temperature of 40-60 ℃ to obtain a mixed solution.
Preferably, in S310, the first suspension droplet: second suspension = 10:100.
preferably, the power of the phacoemulsification is 3.0k, the frequency is 20kHz, and the time is 20min to 40min.
It is understood that the first suspension of droplets is an aqueous phase containing modified titanium oxide and the second suspension is an oil phase containing activated carbon. In view of the problems that the activated carbon is a porous material and titanium oxide is difficult to uniformly disperse in the gaps of the activated carbon, the embodiment of the invention drops the water phase containing the modified titanium oxide into the oil phase containing the activated carbon and ultrasonically emulsifies the water phase, thereby forming an oil-in-water emulsion mixture to achieve the aim of promoting the uniform dispersion of the titanium oxide in the gaps of the activated carbon.
In some embodiments of the present invention, S400 specifically includes:
s410, sending the mixed solution of the step S300 into a reaction kettle, controlling the reaction kettle to be heated to a temperature of 50-55 ℃ under a closed condition, and preserving heat for 40-60 min;
s420, preserving heat and controlling the pressure of the reaction kettle to be 7.5MPa to 8.5MPa, and preserving heat and pressure for 2h to 4h;
s430, decompressing and cooling, separating solid matters from the reaction kettle, and drying to obtain the air purifying agent.
It is understood that the reaction kettle has a sealed environment, and is connected with a nitrogen delivery pipe, and a valve is arranged between the nitrogen delivery pipe and the reaction kettle. The nitrogen delivery pipe is used for delivering nitrogen to the reaction kettle so as to regulate and control the air pressure. The reaction kettle is also provided with an exhaust valve, and the exhaust valve is used for exhausting gas so as to regulate and control the air pressure under the condition of overhigh air pressure.
The mixed solution prepared in the step S300 contains sodium bicarbonate, and the sodium bicarbonate is heated to decompose at the temperature of 50-55 ℃ so that the reaction kettle is filled with carbon dioxide. Subsequently, the pressure of the reaction kettle is kept between 7.5MPa and 8.5MPa by heat preservation and control, so that the carbon dioxide reaches a supercritical state. The super-strong dissolving capacity and interface characteristic of the supercritical carbon dioxide can further promote the mutual uniform mixing of the modified titanium oxide and the activated carbon in the mixed solution, thereby achieving the purpose of further promoting the uniform dispersion of the titanium oxide in the gaps of the activated carbon. In summary, the invention can promote the uniform dispersion of the titanium oxide catalyst in the porous activated carbon by supercritical carbon dioxide by preparing the titanium oxide catalyst and the activated carbon into an emulsion mixture and heating and pressurizing the emulsion mixture, thereby improving the air purifying effect.
In some embodiments of the present invention, after S400, the preparation method further includes:
s510, according to polydopamine: trimethylmethanol= (80-90): 100 mass ratio, uniformly mixing polydopamine and trimethyl methanol to obtain a first material;
s520, vinyl trimethoxy silane: chitosan: water= (1-2): (2-4): 100 mass ratio, uniformly mixing vinyl trimethoxy silane and chitosan in water to obtain a second material;
s530, according to the first material: second material = 1:1, dropwise adding a first material into a second material, and mixing for 2-3 hours to obtain a spray;
s540, spraying: air cleaner= (5-15): 100 mass ratio, spraying the spray material on the surface of the air purifying agent, freeze-drying, heating at the temperature of 85-90 ℃ for 1-2 h, and cooling.
Preferably, in S510, polydopamine: trimethylmethanol=80: 100.
preferably, in S520, vinyltrimethoxysilane: chitosan: water = 1:3:100.
preferably, in S540, the spray: air purifier = 5:100.
preferably, in S540, the temperature of freeze-drying is-50 ℃ to-40 ℃ and the time of freeze-drying is 3 hours to 6 hours.
Preferably, in S540, the air cleaner is placed in the drum, and the spray is sprayed into the drum during the rotation or rolling.
The aim of the embodiment of the invention is to form a protective film layer on the activated carbon loaded with titanium oxide so as to achieve the purposes of dewatering, ventilation and prolonging the service cycle of the air purifying agent. In order to achieve the above object, it is necessary to spray a protective material on the surface of the air cleaner obtained in S400 so that the air cleaner forms a hydrophobic breathable film layer after being freeze-dried and heat-treated.
It is understood that the first material is a mixture of polydopamine and trimethylmethanol, and the second material is an aqueous chitosan solution added with a silane coupling agent, and the mixture spray coating can be obtained after the polydopamine and trimethylmethanol are mixed. The spray contains chitosan, and sodium alginate is added in the preparation process of the air purifying agent. Positive and negative charge attraction occurs in the spraying operation of the positively charged chitosan and the negatively charged sodium alginate, so that sprayed matters are uniformly distributed on the surface of the air purifying agent obtained in the step S400. Finally, after freeze-drying, the heat treatment temperature of 85 ℃ to 90 ℃ enables trimethyl methanol to be decomposed, and the polydopamine forms a breathable porous membrane layer with hydrophobic performance on the surface of the air purifying agent obtained in the step S400. The polydopamine has excellent adhesion capability due to strong covalent/non-covalent interaction between catechol moieties and substrates, can be deposited on the surface of active carbon, and endows the active carbon with excellent hydrophobic performance.
Example 1
The preparation method of the air purifying agent comprises the following steps:
s1, palladium chloride: terbium chloride: manganese chloride: water = 0.02:0.2:4:20, uniformly mixing palladium chloride, terbium chloride and manganese chloride in water to obtain a metal salt solution;
s2, according to sodium hexametaphosphate: titanium oxide: water = 0.2:15:100 mass ratio, uniformly mixing sodium hexametaphosphate and titanium oxide in water to obtain titanium oxide suspension;
s3, according to a metal salt solution: titanium oxide suspension = 6:100 mass ratio, dropwise adding a metal salt solution into a titanium oxide suspension, stirring, adjusting the pH value to 12 after the dropwise adding, stirring for 40min, aging for 4h, filtering, washing with acetone for 2 times, drying at 100 ℃ for 2h, and calcining at 500 ℃ for 2h to obtain modified titanium oxide;
s4, according to sodium alginate: sodium bicarbonate: modified titanium oxide: polyvinyl alcohol: water = 4:6:20:25:100 mass ratio, uniformly mixing sodium alginate, sodium bicarbonate, modified titanium oxide and polyvinyl alcohol in water to obtain a first suspension;
s5, according to Tween 80: activated carbon: vegetable oil = 6:25:100 mass ratio, adding Tween 80 and active carbon into vegetable oil, heating to 50 ℃, and stirring for 30min to obtain a second suspension;
s6, according to the first suspension liquid drops: second suspension = 10:100 mass ratio, dripping the first suspension into the second suspension of S200, and performing ultrasonic emulsification at the temperature of 40 ℃ to obtain a mixed solution;
s7, sending the mixed solution into a reaction kettle, controlling the reaction kettle to be heated to a temperature of 52 ℃ under a closed condition, and preserving heat for 40min;
s8, preserving heat and controlling the pressure of the reaction kettle to be 7.5MPa to 8.0MPa, and preserving heat and pressure for 3 hours;
s9, decompressing and cooling, separating solid matters from the reaction kettle, washing for 2 times, filtering, and drying at 60 ℃ for more than 3 hours to obtain the air purifying agent.
Example 2
The preparation method of the air purifying agent comprises the following steps:
s1, according to polydopamine: trimethylmethanol=80: 100 mass ratio, uniformly mixing polydopamine and trimethyl methanol to obtain a first material;
s2, according to vinyl trimethoxy silane: chitosan: water = 1:4:100 mass ratio, uniformly mixing vinyl trimethoxy silane and chitosan in water to obtain a second material;
s3, according to the first material: second material = 1:1, dropwise adding a first material into a second material, and mixing for 2 hours to obtain a spray;
s4, taking part of the air purifying agent obtained in the example 1, and spraying: air purifier = 10:100 mass ratio, spraying the spray material onto the surface of the air purifying agent obtained in example 1, freeze-drying, heat-treating at a temperature of 85 ℃ to 90 ℃ for 1h to 2h, and cooling.
Comparative example 1
The comparative example prepared an air cleaner, which was prepared by the following steps:
s1, palladium chloride: terbium chloride: manganese chloride: water = 0.02:0.2:4:20, uniformly mixing palladium chloride, terbium chloride and manganese chloride in water to obtain a metal salt solution;
s2, according to sodium hexametaphosphate: titanium oxide: water = 0.2:15:100 mass ratio, uniformly mixing sodium hexametaphosphate and titanium oxide in water to obtain titanium oxide suspension;
s3, according to a metal salt solution: titanium oxide suspension = 6:100 mass ratio, dropwise adding a metal salt solution into a titanium oxide suspension, stirring, adjusting the pH value to 12 after the dropwise adding, stirring for 40min, aging for 4h, filtering, washing with acetone for 2 times, drying at 100 ℃ for 2h, and calcining at 500 ℃ for 2h to obtain modified titanium oxide;
s4, according to sodium alginate: modified titanium oxide: polyvinyl alcohol: water = 4:20:25:100, uniformly mixing sodium alginate, modified titanium oxide and polyvinyl alcohol in water to obtain a first suspension;
s5, according to Tween 80: activated carbon: vegetable oil = 6:25:100 mass ratio, adding Tween 80 and active carbon into vegetable oil, heating to 50 ℃, and stirring for 30min to obtain a second suspension;
s6, according to the first suspension liquid drops: second suspension = 10:100 mass ratio, dripping the first suspension into the second suspension of S200, and performing ultrasonic emulsification at the temperature of 40 ℃ to obtain a mixed solution;
and S7, heating the mixed solution to 45 ℃ under normal pressure, preserving heat for 3 hours, separating solid matters after the heat preservation is finished, washing for 2 times, filtering, and drying at 60 ℃ for more than 3 hours to obtain the air purifying agent.
Comparative example 2
The comparative example prepared an air cleaner, which was prepared by the following steps:
s1, palladium chloride: terbium chloride: manganese chloride: water = 0.02:0.2:4:20, uniformly mixing palladium chloride, terbium chloride and manganese chloride in water to obtain a metal salt solution;
s2, according to sodium hexametaphosphate: titanium oxide: water = 0.2:15:100 mass ratio, uniformly mixing sodium hexametaphosphate and titanium oxide in water to obtain titanium oxide suspension;
s3, according to a metal salt solution: titanium oxide suspension = 6:100 mass ratio, dropwise adding a metal salt solution into a titanium oxide suspension, stirring, adjusting the pH value to 12 after the dropwise adding, stirring for 40min, aging for 4h, filtering, washing with acetone for 2 times, drying at 100 ℃ for 2h, and calcining at 500 ℃ for 2h to obtain modified titanium oxide;
s4, according to sodium alginate: modified titanium oxide: polyvinyl alcohol: water = 4:20:25:100, uniformly mixing sodium alginate, modified titanium oxide and polyvinyl alcohol in water to obtain a first suspension;
s5, according to Tween 80: activated carbon: water = 6:25:100 mass ratio, adding Tween 80 and active carbon into water, heating to 50 ℃, and stirring for 30min to obtain a second suspension;
s6, according to the first suspension liquid drops: second suspension = 10:100 mass ratio, dripping the first suspension into the second suspension of S200, and ultrasonically mixing at 40 ℃ to obtain a mixed solution;
and S7, heating the mixed solution to 45 ℃ under normal pressure, preserving heat for 3 hours, separating solid matters after the heat preservation is finished, washing for 2 times, filtering, and drying at 60 ℃ for more than 3 hours to obtain the air purifying agent.
Performance testing
The formaldehyde purification effect of the air purifier of example 1 of the present invention was tested using an environmental test chamber. The temperature in the environmental test chamber was set to 25.+ -. 1 ℃ and the relative humidity was 40.+ -. 2%. 10mL of 37% formaldehyde solution was injected into the environmental chamber and the air was circulated for 30min so that the whole chamber was filled with formaldehyde. Sampling from the positions of two sampling ports distributed on the upper and lower sides of the cabin body, determining the average concentration of formaldehyde in the cabin according to a second method gas chromatography in national standard GB/T18204.26-2016, and recording as the initial formaldehyde equilibrium concentration C 0 . Putting 20g of the air purifying agent prepared in the embodiment 1 into an air purifier, placing the air purifying agent into an environment test cabin for test, sampling from the positions of two sampling ports distributed on the upper and lower sides of the cabin body 1h and 2h after the air purifier is started, and measuring the average concentration of formaldehyde in the cabinThe degree is recorded as the equilibrium concentration C of formaldehyde after 1h 1 And formaldehyde equilibrium concentration C after 2h 2 And calculates the removal rate R of formaldehyde 1 And R is 2 . Wherein R is 1 =1-C 1 /C 0 ,R 2 =1-C 2 /C 0 . The test methods of inventive example 2 and comparative examples 1-2 were the same as in example 1. The comparative results of formaldehyde purifying effects of the air cleaners of examples 1-2 and comparative examples 1-2 of the present invention are shown in Table 1.
TABLE 1
Sequence number | R 1 | R 2 |
Example 1 | 73.3% | 97.6% |
Example 2 | 72.7% | 95.5% |
Comparative example 1 | 69.8% | 91.2% |
Comparative example 2 | 66.2% | 86.8% |
The air-purifying agents of examples 1 to 2 of the present invention were placed under an environment of 60.+ -. 1 ℃ and a relative humidity of 80.+ -. 2% for 45 days, respectively, and an acceleration experiment was conducted. The formaldehyde purification effect test was then performed in the same manner as above. The comparative results of formaldehyde purifying effects of the air cleaners of examples 1 to 2 of the present invention after the acceleration test are shown in Table 2.
TABLE 2
Sequence number | R 1 | R 2 |
Example 1 | 70.6% | 93.5% |
Example 2 | 71.8% | 94.3% |
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (8)
1. A method for preparing an air cleaner, comprising:
s100, preparing a first suspension by adopting raw materials including palladium chloride, terbium chloride, manganese chloride, titanium oxide, sodium alginate, sodium bicarbonate, polyvinyl alcohol and water;
s200, preparing a second suspension by adopting raw materials including tween, active carbon and vegetable oil;
s300, dropwise adding the first suspension in the step S100 into the second suspension in the step S200, and performing ultrasonic emulsification to obtain a mixed solution;
s400, delivering the mixed solution of the step S300 into a reaction kettle, heating and pressurizing, separating solid matters, and drying to obtain the air purifying agent;
wherein S400 specifically includes:
s410, feeding the mixed solution of the step S300 into a reaction kettle, controlling the reaction kettle to be heated to a temperature condition of 50-55 ℃ under a closed condition, and preserving heat for 40-60 min;
s420, preserving heat and controlling the pressure of the reaction kettle to be 7.5MPa to 8.5MPa, and preserving heat and pressure for 2h to 4h;
s430, decompressing and cooling, separating the solid from the reaction kettle, and drying to obtain the air purifying agent;
after S400, the preparation method further includes:
s510, according to polydopamine: trimethylmethanol= (80-90): 100, uniformly mixing the polydopamine and the trimethyl methanol to obtain a first material;
s520, vinyl trimethoxy silane: chitosan: water= (1-2): (2-4): 100 mass ratio, uniformly mixing the vinyl trimethoxy silane and the chitosan in the water to obtain a second material;
s530, according to the first material: second material = 1:1, dropwise adding the first material into the second material, and mixing for 2-3 hours to obtain a spray;
s540, spraying: air cleaner= (5-15): 100 mass ratio, spraying the spray material on the surface of the air purifying agent, freeze-drying, heating at the temperature of 85-90 ℃ for 1-2 h, and cooling.
2. The preparation method according to claim 1, wherein S100 specifically comprises:
s110, uniformly mixing the palladium chloride, the terbium chloride and the manganese chloride in the water to obtain a metal salt solution;
s120, uniformly mixing sodium hexametaphosphate and titanium oxide in the water to obtain titanium oxide suspension;
s130, dropwise adding the metal salt solution of S110 into the titanium oxide suspension of S120, stirring, adjusting the pH value to 11-12 after dropwise adding, stirring, aging, filtering, washing, drying and calcining to obtain modified titanium oxide;
and S140, uniformly mixing the sodium alginate, the sodium bicarbonate and the modified titanium oxide obtained in the step 130 and the polyvinyl alcohol in the water to obtain the first suspension.
3. The method according to claim 2, wherein,
in S110, palladium chloride: terbium chloride: manganese chloride: water= (0.02-0.04): (0.1-0.2): (2-4): 20, a step of; and/or
In S120, sodium hexametaphosphate: titanium oxide: water= (0.2-0.4): (10-20): 100; and/or
In S130, a metal salt solution: titanium oxide suspension= (6-8): 100; and/or
In S140, sodium alginate: sodium bicarbonate: modified titanium oxide: polyvinyl alcohol: water= (2-4): (6-8): (10-20): (20-30): 100.
4. the method according to claim 2, wherein,
in S130, the stirring time is 20min to 40min; and/or
In S130, the aging time is 4 to 6 hours; and/or
In S130, the washing is performed with ethanol or acetone, the number of times of the washing being 2 to 3 times; and/or
In S130, the temperature of the drying is 80 ℃ to 120 ℃, and the time of the drying is 2 hours to 4 hours; and/or
In S130, the temperature of the calcination is 450 ℃ to 650 ℃, and the time of the calcination is 1h to 3h.
5. The preparation method according to claim 1, wherein S200 specifically comprises:
s210, according to Tween: activated carbon: vegetable oil= (6-8): (15-25): and adding the spitting temperature and the activated carbon into the vegetable oil according to the mass ratio of 100, heating and stirring to obtain the second suspension.
6. The method according to claim 5, wherein,
in S210, the elevated temperature condition is 50 ℃ to 60 ℃; and/or
In S210, the stirring time is 20min to 40min; and/or
In S210, the tween comprises tween 60 and/or tween 80.
7. The preparation method according to claim 1, wherein S300 specifically comprises:
s310, according to the first suspension liquid drops: second suspension= (5-15): 100, dropwise adding the first suspension of S100 into the second suspension of S200, and performing ultrasonic emulsification at the temperature of 40-60 ℃ to obtain the mixed solution.
8. An air purifying agent, characterized in that the air purifying agent is obtained by the production method according to any one of claims 1 to 7.
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08332378A (en) * | 1995-06-07 | 1996-12-17 | Nippon Chem Ind Co Ltd | Deodorizing photocatalytical activated carbon and production thereof |
CN1805780A (en) * | 2003-06-19 | 2006-07-19 | 开利公司 | Air purification system comprising a catalyst and a light source |
CN101301619A (en) * | 2008-07-03 | 2008-11-12 | 南开大学 | Method for preparing high efficiency metallic, non-metallic ion co-doped nano-TiO2 visible-light responsive photocatalyst |
CN102658115A (en) * | 2012-05-09 | 2012-09-12 | 桂林电子科技大学 | Cerium-doped nano titanium dioxide/activated carbon fiber composite photocatalyst for air purification and preparation method thereof |
CN104147924A (en) * | 2014-08-15 | 2014-11-19 | 郑州绿叶堂本草科技有限公司 | Novel photo-catalyst air purifying agent and preparation method |
CN106377983A (en) * | 2016-10-31 | 2017-02-08 | 彭伟 | Nano titanium alginate air purifying material and preparation method thereof |
CN106732572A (en) * | 2016-11-16 | 2017-05-31 | 中山大学 | A kind of scavenging material of gaseous contaminant and its preparation method and application |
CN107376847A (en) * | 2017-06-23 | 2017-11-24 | 孝感市元达新材料科技有限公司 | A kind of air purifier multifunctional composite filter net materials and preparation method |
CN108854516A (en) * | 2018-05-31 | 2018-11-23 | 安徽科浦环保科技有限公司 | A kind of preparation method of indoor highly effective formaldehyde scavenger |
CN115970540A (en) * | 2022-12-20 | 2023-04-18 | 浙江阿佩克斯能源科技有限公司 | Preparation method of active carbon composite material loaded with nano metal or metal oxide |
-
2023
- 2023-06-19 CN CN202310725653.5A patent/CN116712857B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08332378A (en) * | 1995-06-07 | 1996-12-17 | Nippon Chem Ind Co Ltd | Deodorizing photocatalytical activated carbon and production thereof |
CN1805780A (en) * | 2003-06-19 | 2006-07-19 | 开利公司 | Air purification system comprising a catalyst and a light source |
CN101301619A (en) * | 2008-07-03 | 2008-11-12 | 南开大学 | Method for preparing high efficiency metallic, non-metallic ion co-doped nano-TiO2 visible-light responsive photocatalyst |
CN102658115A (en) * | 2012-05-09 | 2012-09-12 | 桂林电子科技大学 | Cerium-doped nano titanium dioxide/activated carbon fiber composite photocatalyst for air purification and preparation method thereof |
CN104147924A (en) * | 2014-08-15 | 2014-11-19 | 郑州绿叶堂本草科技有限公司 | Novel photo-catalyst air purifying agent and preparation method |
CN106377983A (en) * | 2016-10-31 | 2017-02-08 | 彭伟 | Nano titanium alginate air purifying material and preparation method thereof |
CN106732572A (en) * | 2016-11-16 | 2017-05-31 | 中山大学 | A kind of scavenging material of gaseous contaminant and its preparation method and application |
CN107376847A (en) * | 2017-06-23 | 2017-11-24 | 孝感市元达新材料科技有限公司 | A kind of air purifier multifunctional composite filter net materials and preparation method |
CN108854516A (en) * | 2018-05-31 | 2018-11-23 | 安徽科浦环保科技有限公司 | A kind of preparation method of indoor highly effective formaldehyde scavenger |
CN115970540A (en) * | 2022-12-20 | 2023-04-18 | 浙江阿佩克斯能源科技有限公司 | Preparation method of active carbon composite material loaded with nano metal or metal oxide |
Non-Patent Citations (2)
Title |
---|
Photodecolorization of Rhodamine B on tungsten-doped TiO2/activated carbon under visible-light irradiation;Li Youji et al.;《Journal of Hazardous Materials》;第49卷(第1期);第79-85页 * |
纳米TiO2 /ACF空气净化复合材料的制备方法及性能表征;刘琳,陈宇刚;《产业用纺织品》;第37卷(第7期);第6-10页 * |
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