CN111408346B - 一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法 - Google Patents
一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法 Download PDFInfo
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- CN111408346B CN111408346B CN202010276195.8A CN202010276195A CN111408346B CN 111408346 B CN111408346 B CN 111408346B CN 202010276195 A CN202010276195 A CN 202010276195A CN 111408346 B CN111408346 B CN 111408346B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 154
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 title claims abstract description 130
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 65
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 60
- 239000000463 material Substances 0.000 title claims abstract description 57
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910001868 water Inorganic materials 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000005273 aeration Methods 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 11
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 9
- 238000007885 magnetic separation Methods 0.000 claims abstract description 9
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 50
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 26
- 239000012286 potassium permanganate Substances 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 229940099596 manganese sulfate Drugs 0.000 claims description 16
- 239000011702 manganese sulphate Substances 0.000 claims description 16
- 235000007079 manganese sulphate Nutrition 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 150000002696 manganese Chemical class 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 6
- 239000007900 aqueous suspension Substances 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011790 ferrous sulphate Substances 0.000 claims description 4
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000004277 Ferrous carbonate Substances 0.000 claims description 2
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 2
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- IMBKASBLAKCLEM-UHFFFAOYSA-L ferrous ammonium sulfate (anhydrous) Chemical compound [NH4+].[NH4+].[Fe+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IMBKASBLAKCLEM-UHFFFAOYSA-L 0.000 claims description 2
- 235000019268 ferrous carbonate Nutrition 0.000 claims description 2
- RAQDACVRFCEPDA-UHFFFAOYSA-L ferrous carbonate Chemical compound [Fe+2].[O-]C([O-])=O RAQDACVRFCEPDA-UHFFFAOYSA-L 0.000 claims description 2
- 229960004652 ferrous carbonate Drugs 0.000 claims description 2
- 229960002089 ferrous chloride Drugs 0.000 claims description 2
- 229960001781 ferrous sulfate Drugs 0.000 claims description 2
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 2
- 229910000015 iron(II) carbonate Inorganic materials 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 229940071125 manganese acetate Drugs 0.000 claims description 2
- 239000011656 manganese carbonate Substances 0.000 claims description 2
- 235000006748 manganese carbonate Nutrition 0.000 claims description 2
- 229940093474 manganese carbonate Drugs 0.000 claims description 2
- 239000011565 manganese chloride Substances 0.000 claims description 2
- 235000002867 manganese chloride Nutrition 0.000 claims description 2
- 229940099607 manganese chloride Drugs 0.000 claims description 2
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 claims description 2
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 claims description 2
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims 1
- 239000012266 salt solution Substances 0.000 claims 1
- 238000006555 catalytic reaction Methods 0.000 abstract description 24
- 230000005389 magnetism Effects 0.000 abstract description 8
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- ISPYRSDWRDQNSW-UHFFFAOYSA-L manganese(II) sulfate monohydrate Chemical compound O.[Mn+2].[O-]S([O-])(=O)=O ISPYRSDWRDQNSW-UHFFFAOYSA-L 0.000 description 24
- 239000011572 manganese Substances 0.000 description 18
- 239000003054 catalyst Substances 0.000 description 17
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 15
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 14
- 229910052748 manganese Inorganic materials 0.000 description 14
- 239000011148 porous material Substances 0.000 description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000010949 copper Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000011065 in-situ storage Methods 0.000 description 5
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910003177 MnII Inorganic materials 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 230000020335 dealkylation Effects 0.000 description 1
- 238000006900 dealkylation reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000005935 nucleophilic addition reaction Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0222—Compounds of Mn, Re
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/90—Regeneration or reactivation
- B01J23/94—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the iron group metals or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/32—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of manganese, technetium or rhenium
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/40—Regeneration or reactivation
- B01J31/4015—Regeneration or reactivation of catalysts containing metals
- B01J31/4023—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper
- B01J31/403—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper containing iron group metals or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
本发明公开一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法。(1)、制备活性炭负载锰氧化物;(2)、将上述锰氧化物负载活性炭分散到水中,同时加入超支化聚乙烯亚胺超声分散;(3)、将所得溶液在曝气量为10~20L/min下曝气,同时加热升温至80~100℃,以及滴加预定量的亚铁盐溶液和碱液;其中,亚铁盐与碱的物质量比为1:2~3;(4)、溶液滴加完毕后,在曝气量为11~20L/min,恒温81~100℃,搅拌反应1~5min;(5)、将步骤(4)反应后的吸附催化材料进行磁分离、水洗、干燥至恒重,制得本发明的磁性锰氧化物负载活性炭吸附催化材料。本发明方法制备工艺简单,快速,且磁性锰氧化物负载活性炭吸附催化材料磁性强,性能稳定,分散性好,磁分离便捷,可循环利用,适合规模化生产和应用。
Description
技术领域
本发明属于环境治理领域,涉及一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法,可用于重金属或有机污染的大气治理、水处理、土壤和固废治理等,实现磁分离和回收利用。
背景技术
锰是自然界少数的但常见的变价元素之一,因而其氧化物或其水合氧化物广泛应用于电极材料、催化剂、软磁材料以及环境修复材料。尤其随着人们对其结构和性能的认识不断深入,锰氧化物及其水合氧化物在环境污染修复方面的应用不断受到重视。锰氧化物分子的Mn(Ⅳ)和Mn(Ⅲ)具有非常强的氧化性能,当还原性有机污染物与锰氧化物接触时,其结构表面的Mn(Ⅳ)和Mn(Ⅲ)能氧化降解有机物,甚至将其矿化。锰氧化物可以通过多种化学反应机理降解环境中的毒害有机物,主要包括自由基氧化、亲核加成作用、脱烷化作用以及作为微生物降解的电子接受体等。
CN105797741.B公开了一种铜掺杂型二氧化锰催化剂的制备方法,该掺杂型催化剂材料制备工艺主要包括强酸性溶液中的氧化还原反应及活化反应过程和反应釜中的掺杂及氧化反应工艺,具体如下:在溶剂中加入高锰酸盐、MnII盐、铜粉这三种原料得到反应液,并加入酸使反应液呈酸性,搅拌并进行沉淀反应得到含有前躯体的混合溶液;将上述沉淀反应之后的混合溶液加入到反应釜中进行水热反应,然后经过清洗、过滤及干燥滤渣,即得到铜掺杂型二氧化锰催化剂。该制备工艺的优点是①采用铜粉为铜源,掺杂比例可控;②强酸性的反应条件,可得到活性铜离子,使得反应效率更高;③高温高压条件下的反应使得掺杂程度高。缺点是需要高温高压,制备工艺复杂,难度大,能耗高,成本高,较难实现产业化。
活性炭是用木材、煤、果壳等含碳物质在高温缺氧条件下活化制成。活性炭具有丰富的微孔径,比表面积可达1000-1600m2/g,微孔体积90%左右,其微孔孔径为10A-40A。具有比表面积大、孔径适中、分布均匀、吸附速度快、杂质少等优点。活性炭吸附是利用活性炭的物理吸附、化学吸附等性能去除环境(大气、水和土壤)中污染物的处理方法。但是活性炭的饱和吸附容量有限,很容易达到饱和而失去净化功效,经常需要更换,因而处理费用较高。如何将活性炭与催化剂有效结合,提高活性炭环境污染物净化能力是研究的热点之一。
CN103566928.B公开了一种负载二氧化锰的活性炭纤维及其制备方法,该材料制备工艺是先将活性炭纤维浸渍在一定浓度的二价锰水溶液中,然后滴加一定浓度的高锰酸钾水溶液,高锰酸钾和二价锰发生氧化还原反应,生成的二氧化锰沉积在活性炭纤维的表面和微孔中,再经过氮气保护和高温热处理,即制得负载二氧化锰的活性炭纤维。该方法采用共沉淀法负载二氧化锰到活性炭纤维上,利用二氧化锰来源丰富、价格低廉、安全无毒、具有较高的催化活性等优点,制备负载二氧化锰的活性炭纤维,对空气中低浓度NO进行吸附与催化氧化,并进而脱除。缺点是需要高温,制备工艺复杂,难度大,能耗高,成本高,较难实现产业化。Ezeigwe等人将MnSO4·H2O和KMnO4分别溶于去离子水中,并在剧烈搅拌下依次加入到掺有石墨烯的去离子水中。将混合物转移到50ml不锈钢高压釜中并置于90℃的烘箱中15h,分别用过量的乙醇和水重复洗漆,70℃干燥,制备出了石墨烯-MnO2复合材料。缺点是反应时间较长,而且对原料的纯度和配比选择要求高。
所以,上述磁性吸附催化材料的制备工艺虽然也均是原位制备,但是或是制备工艺复杂,不易控制;或是磁性分布不均匀,稳定性差;或是制备过程较长,需要加入氧化剂和稳定剂,产生大量废液,造成污染;或是高温处理,耗能高,成本高等问题,很难实现产业化。
发明内容
针对上述问题,本发明提供一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法。
为达到上述目的,本发明的一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法,包括下述步骤:
步骤一:锰氧化物负载活性炭制备:粉末活性炭100℃水中煮沸1~3h,过滤、干燥,备用;配制一定浓度的高锰酸钾(溶液A)及锰盐和酸溶液(溶液B),活性炭水悬浊液在60~80℃搅拌下,同步滴加溶液A和溶液B,滴加完毕,70~90℃水热反应1~5h,过滤,水洗至中性,得到活性炭负载锰氧化物;
步骤二:将上述锰氧化物负载活性炭分散到水中,同时加入超支化聚乙烯亚胺超声分散;
步骤三:将步骤二所得溶液在曝气量为10~20L/min下曝气,同时加热升温至80~100℃,以及滴加预定量的亚铁盐溶液和碱液;其中,亚铁盐与碱的物质量比为1:2~3;
步骤四:步骤三的溶液滴加完毕后,在曝气量为11~20L/min,恒温81~100℃,搅拌反应1~5min;
步骤五:对步骤四溶液中的吸附催化材料进行磁分离、水洗、干燥至恒重,制得本发明的磁性锰氧化物负载活性炭吸附催化材料。
优选的,步骤一粉末活性炭是椰壳活性炭、木质活性炭、果壳活性炭和煤质活性炭中一种或两种以上混合物,粒径100目~600目。
优选的,步骤一锰盐是指硫酸锰、硝酸锰、氯化锰、碳酸锰、乙酸锰中的一种或两种以上混合物,溶液配制浓度为0.01mol/L~1mol/L,高锰酸钾与锰盐的物质的量比为1:5~5:1。
优选的,步骤一酸是指硫酸、硝酸、盐酸、磷酸中的一种或两种以上混合物,酸与锰盐的物质的量比为1:2~10:1。
优选的,步骤三所述的亚铁盐是硫酸亚铁、氯化亚铁、碳酸亚铁、硫酸亚铁铵中的一种或两种以上混合物。
优选的,步骤三所述的碱是氢氧化钠、氢氧化钾、氢氧化镁、氢氧化钙中的一种或两种以上混合物,浓度是0.1~5M。
优选的,活性炭:锰氧化物:磁性成分:聚乙烯亚胺的质量比为100:0.1~5:0.1~5:0.02~1。
本发明采用分布在活性炭吸附材料孔道中原位快速制备并负载锰氧化物和磁核的工艺制备强磁性锰氧化物负载活性炭吸附催化材料,首先在活性炭吸附材料孔道中在酸性催化条件下原位快速制备并负载锰氧化物,且锰氧化组成、形态和性能可以通过改变原料配比,反应温度、时间和pH加以调节;再在锰氧化物负载活性炭的孔道中原位快速制备并负载磁核,锰氧化物和磁核表面包裹超支化聚乙烯亚胺,结构性能稳定。快速制得的强磁性锰氧化物负载活性炭吸附催化材料具有锰氧化物和磁核分散均匀牢固,磁性强,比表面积大,吸附催化能力强等特点。磁性锰氧化物负载活性炭吸附催化材料对重金属和有机物有较强的吸附催化能力,磁分离回收,再利用,可用于重金属和有机物污染的大气废水、土壤、固废等处理。
本发明的有益效果:
1、本发明方法制备的强磁性锰氧化物负载活性炭吸附催化材料采用在孔道中原位制备并负载锰氧化物和磁核的工艺,将锰氧化物和磁核均匀分布在吸附材料的孔道中,形成吸附催化材料-磁性材料的一体化复合结构,且锰氧化物和磁核表面包裹了超支化聚乙烯亚胺,结构稳定;
2、本发明方法制备的强磁性锰氧化物负载活性炭吸附催化材料的分散性好,吸附催化性和磁性强,性能持久稳定,利于材料的回收和再利用;
3、发明方法的制备工艺简单,快速,易于控制,制造成本低,适合规模化生产和应用。
具体实施方式
下面结合实施例对本发明作进一步的描述,所描述的实施例及其结果仅用于本发明,而不应当也不会限值权利要求书中所描述的本发明。
活性炭:椰壳活性炭,粒径200-300目,溧阳市南山活性炭有限公司
浓硫酸(98%)、高锰酸钾、一水硫酸锰、七水硫酸亚铁、氢氧化钠、五水硫酸铜、苯酚均是国药试剂。
实施例1
步骤一:锰氧化物负载活性炭制备:100克粉末活性炭在100℃水中煮沸2h,过滤、100℃干燥,备用;配制40ml含高锰酸钾0.48克的溶液A及40ml含一水硫酸锰0.39克和浓硫酸0.5克的溶液B,活性炭水悬浊液200ml在70℃搅拌下,同步滴加溶液A和溶液B(高锰酸钾和硫酸锰的物质的量比为4:3,硫酸和硫酸锰的物质的量比为2:1),滴加完毕,90℃水热反应3h,过滤,水洗至中性,得到锰氧化物负载活性炭;
步骤二:将上述锰氧化物负载活性炭分散到200ml水中,同时加入超支化聚乙烯亚胺0.1克超声分散;
步骤三:将步骤二所得溶液在曝气量为15L/min下曝气,同时加热升温至90℃,以及滴加20ml含七水硫酸亚铁1.8克和20ml含氢氧化钠0.6克(硫酸亚铁与氢氧化钠的物质量比为1:2.32);滴加速度0.5-5ml/min;
步骤四:步骤三的溶液滴加完毕后,在曝气量为15L/min,恒温90℃,搅拌反应3min;
步骤五:对步骤四溶液中的吸附催化材料进行磁分离、水洗、干燥至恒重,制得本发明的磁性锰氧化物负载活性炭吸附催化材料A,锰氧化物含量为0.5%、磁核含量为0.5%。
实施例2
实施例1同样的方法,步骤一用50克活性炭,其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料B,锰氧化物含量为1%、磁核含量为1%。
实施例3
实施例1同样的方法,步骤一用10克活性炭,其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料C,锰氧化物含量为5%、磁核含量为5%。
实施例4
实施例1同样的方法,步骤一用40ml含高锰酸钾0.36克的溶液A及40ml含一水硫酸锰0.58克和浓硫酸0.75克的溶液B,即,高锰酸钾和硫酸锰的物质的量比为2:3,硫酸和硫酸锰的物质的量比为2:1),其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料D,锰氧化物含量为0.5%、磁核含量为0.5%。
实施例5
实施例1同样的方法,步骤一用40ml含高锰酸钾0.2克的溶液A及40ml含一水硫酸锰0.86克和浓硫酸1.1克的溶液B,即,高锰酸钾和硫酸锰的物质的量比为1:4,硫酸和硫酸锰的物质的量比为2:1),其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料E,锰氧化物含量为0.5%、磁核含量为0.5%。
实施例6
实施例1同样的方法,步骤一用40ml含高锰酸钾0.48克的溶液A及40ml含一水硫酸锰0.39克和浓硫酸0.25克的溶液B,即,高锰酸钾和硫酸锰的物质的量比为4:3,硫酸和硫酸锰的物质的量比为1:1),其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料F,锰氧化物含量为0.5%、磁核含量为0.5%。
实施例7
实施例1同样的方法,步骤一用80ml含高锰酸钾0.96克的溶液A及80ml含一水硫酸锰0.78克和浓硫酸1.0克的溶液B,即,高锰酸钾和硫酸锰的物质的量比为4:3,硫酸和硫酸锰的物质的量比为2:1),其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料G,锰氧化物含量为1%、磁核含量为0.5%。
实施例8
实施例1同样的方法,步骤三用20L/min,恒温85℃,搅拌反应2min,其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料H,锰氧化物含量为0.5%、磁核含量为0.5%。
实施例9
实施例1同样的方法,步骤三用11L/min,恒温95℃,搅拌反应4min,其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料I,锰氧化物含量为0.5%、磁核含量为0.5%。
比较例1(无酸)
实施例1同样的方法,步骤一用40ml含高锰酸钾0.48克的溶液A及40ml含一水硫酸锰0.39克的溶液B,其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料J。
比较例2(无磁性)
10克粉末活性炭在100℃水中煮沸2h,过滤、100℃干燥,备用;配制80ml含高锰酸钾0.96克的溶液A及80ml含一水硫酸锰0.78克和浓硫酸1.0克的溶液B,活性炭水悬浊液200ml在70℃搅拌下,同步滴加溶液A和溶液B(高锰酸钾和硫酸锰的物质的量比为4:3,硫酸和硫酸锰的物质的量比为2:1),滴加完毕,90℃水热反应3h,过滤,水洗至中性,干燥至恒重,制得锰氧化物负载活性炭K。
比较例3(磁性弱)
实施例1同样的方法,步骤三用曝气量为5L/min下曝气,同时加热升温至70℃,搅拌反应5min,其余方法同实施例1,制得磁性锰氧化物负载活性炭吸附催化材料L。
比较例4(堵孔)
步骤一:锰氧化物负载活性炭制备:10克粉末活性炭在100℃水中煮沸2h,过滤、100℃干燥,备用;配制80ml含高锰酸钾0.96克的溶液A及80ml含一水硫酸锰0.78克和浓硫酸1.0克的溶液B,活性炭水悬浊液200ml在70℃搅拌下,同步滴加溶液A和溶液B(高锰酸钾和硫酸锰的物质的量比为4:3,硫酸和硫酸锰的物质的量比为2:1),滴加完毕,90℃水热反应3h,过滤,水洗至中性,得到锰氧化物负载活性炭;
步骤二:将上述锰氧化物负载活性炭分散到200ml水中,同时加入超支化聚乙烯亚胺0.1克超声分散;
步骤三:将步骤二所得溶液在曝气量为15L/min下曝气,同时加热升温至90℃,以及滴加20ml含七水硫酸亚铁3.6克和20ml含氢氧化钠1.2克(硫酸亚铁与氢氧化钠的物质量比为1:2.32);
步骤四:步骤三的溶液滴加完毕后,在曝气量为15L/min,恒温90℃,搅拌反应3min;
步骤五:对步骤四溶液中的吸附催化材料进行磁分离、水洗、干燥至恒重,制得本发明的磁性锰氧化物负载活性炭吸附催化材料M,锰氧化物含量为10%、磁核含量为10%。
材料磁性强度评价
称取10克材料装入密封袋,用磁铁石测试各材料的强度,结果见表1
表1
备注:◎——磁性强;О——磁性弱;X——没有磁性。
材料重金属吸附性能评价
用硫酸铜配制Cu2+浓度为10mg/L的模拟废水,取铜污染废水1L,加入0.3克吸附催化材料A~L,搅拌反应1h,再磁分离,用ICP测试液体中Cu2+浓度,同样的方法循环使用处理含铜废液10次,结果见表2。
表2
取苯酚浓度为100mg/L的模拟染料废水100ml,加入0.3克磁性吸附催化材料A~K和过硫酸钾1克,只添加过硫酸钾1克为对照,室温震荡处理2h,再磁分离,滤液用分光光度法测定溶液在270nm处的吸光度,进而计算处理后苯酚浓度,同样的方法循环使用处理苯酚废液20次,结果见表3。
表3
本发明方法实施例1-9在1~5h快速制备锰氧化物负载活性炭,然后又在1~5min快速在活性炭孔道中制备磁核,形成一体化整体结构,磁性和稳定性好。所制备的磁性吸附催化材料对Cu2+有很强的吸附能力,且反复使用10次吸附效果仍较好,饱和吸附量大;所制备的磁性吸附催化材料对苯酚有很强的吸附催化分解能力,且反复使用50次吸附催化分解效果仍较好。而比较例1制备的磁性吸附催化材料J制备锰氧化物时没有在酸性条件,锰氧化负载量较少,对Cu2+和苯酚的去除效果较差;比较例2制备的吸附催化材料K,没有磁性,分离较困难,且对Cu2+和苯酚的去除效果较差;比较例3制备的磁性吸附催化材料L,磁性较弱,磁分离较困难,且对Cu2+和苯酚的去除效果较差;比较例4制备的磁性吸附催化材料M,锰氧化物和磁核负载过多,堵住活性炭孔道,吸附性差。
Claims (4)
1.一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法,其特征在于,所述的快速制备方法如下:
(1)、制备活性炭负载锰氧化物;
(2)、将上述锰氧化物负载活性炭分散到水中,同时加入超支化聚乙烯亚胺超声分散;
(3)、将所得溶液在曝气量为10~20L/min下曝气,同时加热升温至80~100℃,以及滴加预定量的亚铁盐溶液和碱液;其中,亚铁盐与碱的物质的量比为1:2~3;
(4)、溶液滴加完毕后,在曝气量为11~20L/min,恒温81~100℃,搅拌反应1~5min;
(5)、将步骤(4)反应后的吸附催化材料进行磁分离、水洗、干燥至恒重,制得磁性锰氧化物负载活性炭吸附催化材料;
所述的制备活性炭负载锰氧化物的步骤为:
(21)粉末活性炭100℃水中煮沸1~3h,过滤、干燥,备用;
(22)配制一定浓度的高锰酸钾溶液;配制一定浓度的锰盐和酸溶液;
(23)活性炭水悬浊液在60~80℃搅拌下,同步滴加高锰酸钾溶液、锰盐和酸溶液,滴加完毕,70~90℃水热反应1~5h,过滤,水洗至中性,得到活性炭负载锰氧化物;
步骤一锰盐是指硫酸锰、硝酸锰、氯化锰、碳酸锰、乙酸锰中的一种或两种以上混合物,溶液配制浓度为0.01mol/L~1mol/L,高锰酸钾与锰盐的物质的量比为1:5~5:1;
步骤一酸是指硫酸、硝酸、盐酸和磷酸中的一种或两种以上混合物,酸与锰盐的物质的量比为1:2~10:1;
活性炭:锰氧化物:磁性成分:超支化聚乙烯亚胺的质量比为100:0.1~5:0.1~5:0.02~1。
2.如权利要求1所述的一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法,其特征在于,粉末活性炭是椰壳活性炭、木质活性炭、果壳活性炭和煤质活性炭中一种或两种以上混合物,粒径100目~600目。
3.如权利要求1所述的一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法,其特征在于:步骤三所述的亚铁盐是硫酸亚铁、氯化亚铁、碳酸亚铁、硫酸亚铁铵中的一种或两种以上混合物。
4.如权利要求1所述的一种磁性锰氧化物负载活性炭吸附催化材料快速制备方法,其特征在于:步骤三所述的碱是氢氧化钠、氢氧化钾、氢氧化镁、氢氧化钙中的一种或两种以上混合物,浓度是0.1~5M。
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