CN108636435A - A kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam - Google Patents
A kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam Download PDFInfo
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- CN108636435A CN108636435A CN201810371601.1A CN201810371601A CN108636435A CN 108636435 A CN108636435 A CN 108636435A CN 201810371601 A CN201810371601 A CN 201810371601A CN 108636435 A CN108636435 A CN 108636435A
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- carbon foam
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- oxidation process
- formaldehyde
- photocatalytic oxidation
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000015556 catabolic process Effects 0.000 title claims abstract description 25
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 25
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 24
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 230000003647 oxidation Effects 0.000 title claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 240000000560 Citrus x paradisi Species 0.000 claims abstract description 18
- 239000006260 foam Substances 0.000 claims abstract description 12
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 8
- 239000008103 glucose Substances 0.000 claims abstract description 8
- 238000005422 blasting Methods 0.000 claims description 17
- 239000003610 charcoal Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000004880 explosion Methods 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000007605 air drying Methods 0.000 claims description 10
- 238000001354 calcination Methods 0.000 claims description 10
- 239000012065 filter cake Substances 0.000 claims description 10
- 239000007833 carbon precursor Substances 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 239000000908 ammonium hydroxide Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 235000019441 ethanol Nutrition 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims 6
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims 2
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 claims 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 238000007146 photocatalysis Methods 0.000 abstract description 6
- 229930040373 Paraformaldehyde Natural products 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229920002866 paraformaldehyde Polymers 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 241000209094 Oryza Species 0.000 description 8
- 235000007164 Oryza sativa Nutrition 0.000 description 8
- 235000009566 rice Nutrition 0.000 description 8
- 241000209140 Triticum Species 0.000 description 6
- 235000021307 Triticum Nutrition 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 241000220215 Moringa Species 0.000 description 5
- 235000011347 Moringa oleifera Nutrition 0.000 description 5
- 244000228451 Stevia rebaudiana Species 0.000 description 5
- 235000006092 Stevia rebaudiana Nutrition 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 238000001291 vacuum drying Methods 0.000 description 5
- 239000003643 water by type Substances 0.000 description 5
- 229920001202 Inulin Polymers 0.000 description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 125000005909 ethyl alcohol group Chemical group 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000001027 hydrothermal synthesis Methods 0.000 description 4
- JYJIGFIDKWBXDU-MNNPPOADSA-N inulin Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@]1(OC[C@]2(OC[C@]3(OC[C@]4(OC[C@]5(OC[C@]6(OC[C@]7(OC[C@]8(OC[C@]9(OC[C@]%10(OC[C@]%11(OC[C@]%12(OC[C@]%13(OC[C@]%14(OC[C@]%15(OC[C@]%16(OC[C@]%17(OC[C@]%18(OC[C@]%19(OC[C@]%20(OC[C@]%21(OC[C@]%22(OC[C@]%23(OC[C@]%24(OC[C@]%25(OC[C@]%26(OC[C@]%27(OC[C@]%28(OC[C@]%29(OC[C@]%30(OC[C@]%31(OC[C@]%32(OC[C@]%33(OC[C@]%34(OC[C@]%35(OC[C@]%36(O[C@@H]%37[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O%37)O)[C@H]([C@H](O)[C@@H](CO)O%36)O)[C@H]([C@H](O)[C@@H](CO)O%35)O)[C@H]([C@H](O)[C@@H](CO)O%34)O)[C@H]([C@H](O)[C@@H](CO)O%33)O)[C@H]([C@H](O)[C@@H](CO)O%32)O)[C@H]([C@H](O)[C@@H](CO)O%31)O)[C@H]([C@H](O)[C@@H](CO)O%30)O)[C@H]([C@H](O)[C@@H](CO)O%29)O)[C@H]([C@H](O)[C@@H](CO)O%28)O)[C@H]([C@H](O)[C@@H](CO)O%27)O)[C@H]([C@H](O)[C@@H](CO)O%26)O)[C@H]([C@H](O)[C@@H](CO)O%25)O)[C@H]([C@H](O)[C@@H](CO)O%24)O)[C@H]([C@H](O)[C@@H](CO)O%23)O)[C@H]([C@H](O)[C@@H](CO)O%22)O)[C@H]([C@H](O)[C@@H](CO)O%21)O)[C@H]([C@H](O)[C@@H](CO)O%20)O)[C@H]([C@H](O)[C@@H](CO)O%19)O)[C@H]([C@H](O)[C@@H](CO)O%18)O)[C@H]([C@H](O)[C@@H](CO)O%17)O)[C@H]([C@H](O)[C@@H](CO)O%16)O)[C@H]([C@H](O)[C@@H](CO)O%15)O)[C@H]([C@H](O)[C@@H](CO)O%14)O)[C@H]([C@H](O)[C@@H](CO)O%13)O)[C@H]([C@H](O)[C@@H](CO)O%12)O)[C@H]([C@H](O)[C@@H](CO)O%11)O)[C@H]([C@H](O)[C@@H](CO)O%10)O)[C@H]([C@H](O)[C@@H](CO)O9)O)[C@H]([C@H](O)[C@@H](CO)O8)O)[C@H]([C@H](O)[C@@H](CO)O7)O)[C@H]([C@H](O)[C@@H](CO)O6)O)[C@H]([C@H](O)[C@@H](CO)O5)O)[C@H]([C@H](O)[C@@H](CO)O4)O)[C@H]([C@H](O)[C@@H](CO)O3)O)[C@H]([C@H](O)[C@@H](CO)O2)O)[C@@H](O)[C@H](O)[C@@H](CO)O1 JYJIGFIDKWBXDU-MNNPPOADSA-N 0.000 description 4
- 229940029339 inulin Drugs 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 150000001299 aldehydes Chemical class 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 108010087005 glusulase Proteins 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000014181 Bronchial disease Diseases 0.000 description 1
- 208000018569 Respiratory Tract disease Diseases 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
-
- B01J35/39—
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/084—Decomposition of carbon-containing compounds into carbon
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
Abstract
The present invention relates to a kind of preparation methods of formaldehyde degradation by photocatalytic oxidation process function Carbon foam, belong to environmental purification field of material technology.The present invention, which uses, has a large amount of grooves, specific surface area is larger, and the pomelo peel with loose network structure is raw material, passes through diffusion using high temperature and high pressure steam, dramatically increase the porosity of material, the more active sites of fiber surface are activated, then using glucose as carbon source, forms good unbodied cladding, the porosity that reduction generates when combining insecure, and play the role of " bridge ", inhibit crackle, improves carbon foams compression strength；The present invention with slotted mode by V N by entering TiO2Lattice reduces TiO2Band gap enhances TiO2To ultraviolet-visible absorption ability, strengthen photocatalysis performance, more active sites are provided in light-catalyzed reaction, the absorption and transmission of substance more conducively in catalytic process, i.e. absorbing synergic effect enhancing photocatalysis enhance the absorption degradation performance of PARA FORMALDEHYDE PRILLS(91,95) gas.
Description
Technical field
The present invention relates to a kind of preparation methods of formaldehyde degradation by photocatalytic oxidation process function Carbon foam, belong to environmental purification material technology
Field.
Background technology
Formaldehyde is a kind of with very supervirulent gas, construction material, hard board, furniture, coating, the oil of interior decoration
Paint, textile etc. can release formaldehyde in use, and longest acquisition time is up to the more than ten years.Work as indoor formaldehyde content
For 0.1mg/m3When just have a peculiar smell and sense of discomfort, suck high-concentration formaldehyde, respiratory tract and bronchial disease can be caused；Long Term Contact
Low dosage formaldehyde can cause slow poisoning, severe patient to cause death.Therefore, it is current to explore the method for effectively removing indoor formaldehyde
One of research hotspot.
Numerous studies have been carried out in terms of formaldehyde removal both at home and abroad, in numerous purification techniques, absorption method and photocatalytic method
It is presently the most widely used Formaldehyde Pollution of Indoor Air purification method.
Compared with other adsorbents, activated carbon surface has porous structure and various active groups, suction big with adsorption capacity
Attached rate is fast, is easy to the characteristics of regeneration, and apparent advantage is demonstrated by terms of the improvement of gaseous formaldehyde.Activated carbon adsorption formaldehyde master
The physisorption of the micropore and mesoporous PARA FORMALDEHYDE PRILLS(91,95) in its structure is relied on, with the extension of usage time, activated carbon is to first
The absorption of aldehyde gas will reach saturation, lose absorption property.
TiO2The photochemical reaction that the Photo-induced electron transfer process of particle interface is induced is organic in environment for eliminating
Polluter has remarkable result, it is expected to develop into and directly utilize oxygen in air and solar energy degradation hazardous contaminant
Green oxidation technology.By TiO2It is compound with porous charcoal studies have shown that porous charcoal is as adsorption site, strong absorption property can be right
Light concentration organic pollutant be effectively enriched with, is concentrated, and is TiO2High concentration reaction environment is provided, TiO is accelerated2Photocatalysis drop
Solve speed.The concentration difference that adsorbate inside and outside porous charcoal can be formed as degradation center realizes the in-situ regeneration of porous charcoal, extends more
Hole charcoal reaches the time of adsorption saturation, increases the equilibrium adsorption capacity of porous charcoal.In addition, the absorption of porous charcoal can effectively reduce volatilization
The release of property photocatalysis intermediate product, can eliminate secondary pollution caused by volatile intermediate products.
But conventional carbon is not easily molded, and easily causes dust pollution, is accordingly used in the function of synthesis indoor VOCs purification
Carbon Materials remain certain defect, so it is extremely urgent to study a kind of sorbing material that environmental-protection adsorption performance is good.
Invention content
The technical problems to be solved by the invention：It is not easily molded for conventional carbon, and dust pollution is easily caused, to first
The absorption of aldehyde gas can reach saturation, the problem of losing absorption property, provide a kind of formaldehyde degradation by photocatalytic oxidation process function Carbon foam
Preparation method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of preparation method of enriched rice, specific preparation process are：
（1）It is transferred in pulverizer and crushes after taking leaf of Moringa to wash natural drying, cross 40 mesh sieve, obtain moringa powder；
（2）Natural air drying after taking STEVIA REBAUDIANA to wash, and be added in pulverizer and crush, 40 mesh sieve is crossed, sweetleaf inulin is obtained；
（3）Take wheat germ powder be added deionized water in mix, be used in combination mass fraction be 5% sodium hydroxide solution adjust pH be 8.5
~9.5, it stirs to centrifuge after 1~2h at 35~40 DEG C and takes supernatant liquor, then with mass fraction be the adjusting of 5% acetum
PH is 4.0~4.5, is centrifuged after 1~2h of standing and precipitation, washing and drying is taken to obtain wheat germ protein isolate；
（4）It takes moringa powder, wheat germ protein isolate, sweetleaf inulin to be added in deionized water and is stirred 20~30min, and be transferred to and go out
10~15min of sterilization treatment in bacterium pot, obtains material liquid；
（5）It takes glusulase to be added in material liquid, 3~5h is stirred to react under 30~40 DEG C of waters bath with thermostatic control, then centrifuge collection
Supernatant obtains nutrient solution；
（6）Take early Xian crack rice be added deionized water in impregnate, after filtering take out morning Xian crack rice and crushed with pulverizer, mistake 60 mesh
Sieve, obtains rice flour；
（7）It takes rice flour to be added in nutrient solution to be uniformly mixed, is placed in 1~2min of boiling in food steamer, then be transferred in extruder and squeeze 2
~3min and excision forming stand dry 0.5~1h after aging, obtain enriched rice.
Step（3）The wheat germ powder and the mass ratio of deionized water are 1：5~1：20.
Step（4）The moringa powder, wheat germ protein isolate, sweetleaf inulin, deionized water parts by weight be 200~300 parts
Moringa powder, 100~200 parts of wheat germ protein isolates, 40~60 parts of sweetleaf inulin, 1000~2000 parts of deionized waters.
Step（5）The mass ratio of the glusulase and material liquid is 1：300~1：500.
Step（6）It is 1 that the morning Xian, which cracks rice with the mass ratio of deionized water,：2~1：6.
Step（7）The mass ratio of the rice flour and nutrient solution is 1：1~1：3.
Step（7）The extruding temperature is 120~130 DEG C, and the standings ageing process is at 80~90 DEG C, relative humidity
2~3h of aging is stood under conditions of 90~95%.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention, which uses, has a large amount of grooves, and specific surface area is larger, and the pomelo peel with loose network structure is raw material, profit
With high temperature and high pressure steam by diffusion, the porosity of material is dramatically increased, activates the more active sites of fiber surface, then
Using glucose as carbon source, good unbodied cladding, the porosity that reduction generates when combining insecure are formed, and play " bridge "
Effect inhibits crackle, improves carbon foams compression strength；
（2）The present invention with slotted mode by V-N by entering TiO2Lattice reduces TiO2Band gap enhances TiO2To ultraviolet-visible
Absorbability, sufficiently narrow band gap enables absorb visible light after valence electron be excited to conduction band, enhance photoresponse range, strengthen
Photocatalysis performance provides more active sites in light-catalyzed reaction, the absorption and transmission of substance more conducively in catalytic process,
That is absorbing synergic effect enhancing photocatalysis, enhances the absorption degradation performance of PARA FORMALDEHYDE PRILLS(91,95) gas；
（3）Foam carbon material prepared by the present invention generates high electronics, hole separation rate through photoinduction, and light induced electron can hold very much
It changes places to migrate to surface from the interior zone of catalysis material and participates in reacting, the enhancing of charge carrier separation will lead to more work
Property oxygen groups increase, enhance photocatalytic degradation capability and absorption property.
Specific implementation mode
White Flocculus is collected after pomelo peel is divested exocuticle, natural air drying after being washed with deionized 2~3 times, and
It takes 300~500g White Flocculus to be fitted into steam blasting tank, and is passed through 1.5~2.5MPa temperature into steam blasting tank and is
220~250 DEG C of water vapours keep moment opening steam blasting tank valve after 3~4min, are taken out after pressure release to normal pressure, then impregnate
40~50min in 2~3L temperature is 80~85 DEG C of deionized waters, takes out natural air drying, obtains Steam explosion treatment pomelo peel, take
It is in 5% glucose solution, with 300W ultrasounds that 600~1000g mass fractions, which are added, in 200~300g Steam explosion treatment pomelo peels
Wave is ultrasonically treated 10~15min, then is transferred in hydrothermal reaction kettle, and 5~6h, mistake after being cooled to room temperature are reacted at 180~200 DEG C
Filter residue is collected in filter, filter residue is washed with deionized 4~5 times, then filter residue is placed in vacuum drying chamber, dry at 50~60 DEG C
2~3h obtains skeleton charcoal, takes 500~600g absolute ethyl alcohols, 200~240g acetonitriles, 20~30g ammonium metavanadates, 5~10g mass point
Number is fitted into flask for 25% ammonium hydroxide and is uniformly mixed, and adds 30~50g skeleton charcoals, and 20~30min is ultrasonically treated with 300W,
Under 150~180r/min stirring conditions, 8~10g butyl titanates are added dropwise, filter to obtain filter cake after continuing 2~3h of stirring, use is anhydrous
Ethyl alcohol washing filter cake is placed in vacuum drying chamber for 3~5 times, and dry 2~3h, obtains foam carbon precursor at 100~105 DEG C,
By in foam carbon precursor loading tube formula stove, under high-purity argon gas atmosphere, 300~400 DEG C of heat preservation calcinings are warming up to 2 DEG C/min
20~30min, then 500~550 DEG C of heat preservation 2~3h of calcining are warming up to 1 DEG C/min, photocatalytic degradation first is obtained after being cooled to room temperature
Aldehyde function Carbon foam.
White Flocculus is collected after pomelo peel is divested exocuticle, natural air drying after being washed with deionized 2 times, and take
300g White Flocculus is fitted into steam blasting tank, and it is 220 DEG C of water vapours to be passed through 1.5MPa temperature into steam blasting tank, is protected
Moment opens steam blasting tank valve after holding 3min, is taken out after pressure release to normal pressure, then it is 80 DEG C of deionized waters to be immersed in 2L temperature
Middle 40min takes out natural air drying, obtains Steam explosion treatment pomelo peel, takes 200g Steam explosion treatment pomelo peels that 600g matter is added
It is 10min to be handled with 300W ultrasonic echographies, then be transferred in hydrothermal reaction kettle, at 180 DEG C in 5% glucose solution to measure score
5h is reacted, filter residue is collected by filtration after being cooled to room temperature, filter residue is washed with deionized 4 times, then filter residue is placed in vacuum drying chamber
In, dry 2h, obtains skeleton charcoal at 50 DEG C, takes 500g absolute ethyl alcohols, 200g acetonitriles, 20g ammonium metavanadates, and 5g mass fractions are
25% ammonium hydroxide is fitted into flask and is uniformly mixed, and adds 30g skeleton charcoals, and 20min is ultrasonically treated with 300W, is stirred in 150r/min
Under the conditions of, 8g butyl titanates are added dropwise, continue to filter to obtain filter cake after stirring 2h, wash filter cake with absolute ethyl alcohol is placed on for 3 times very
In empty drying box, dry 2h, obtains foam carbon precursor at 100 DEG C, by foam carbon precursor loading tube formula stove, in high-purity argon
Under atmosphere is enclosed, 300 DEG C of heat preservation calcining 20min are warming up to 2 DEG C/min, then 500 DEG C of heat preservation calcining 2h are warming up to 1 DEG C/min,
Formaldehyde degradation by photocatalytic oxidation process function Carbon foam is obtained after being cooled to room temperature.
White Flocculus is collected after pomelo peel is divested exocuticle, natural air drying after being washed with deionized 2 times, and take
400g White Flocculus is fitted into steam blasting tank, and it is 235 DEG C of water vapours to be passed through 2.0MPa temperature into steam blasting tank, is protected
Moment opens steam blasting tank valve after holding 3min, is taken out after pressure release to normal pressure, then it is 83 DEG C of deionizations to be immersed in 2.5L temperature
45min in water takes out natural air drying, obtains Steam explosion treatment pomelo peel, takes 250g Steam explosion treatment pomelo peels that 800g is added
Mass fraction is 13min to be handled with 300W ultrasonic echographies, then be transferred in hydrothermal reaction kettle, at 190 DEG C in 5% glucose solution
Lower reaction 5h, filter residue is collected by filtration after being cooled to room temperature, and filter residue is washed with deionized 4 times, then filter residue is placed in vacuum drying
In case, dry 2h, obtains skeleton charcoal at 55 DEG C, takes 550g absolute ethyl alcohols, 220g acetonitriles, 25g ammonium metavanadates, and 8g mass fractions are
25% ammonium hydroxide is fitted into flask and is uniformly mixed, and adds 40g skeleton charcoals, and 25min is ultrasonically treated with 300W, is stirred in 165r/min
Under the conditions of, 9g butyl titanates are added dropwise, continue to filter to obtain filter cake after stirring 2h, wash filter cake with absolute ethyl alcohol is placed on for 4 times very
In empty drying box, dry 2h, obtains foam carbon precursor at 103 DEG C, by foam carbon precursor loading tube formula stove, in high-purity argon
Under atmosphere is enclosed, 350 DEG C of heat preservation calcining 25min are warming up to 2 DEG C/min, then 525 DEG C of heat preservation calcining 2h are warming up to 1 DEG C/min,
Formaldehyde degradation by photocatalytic oxidation process function Carbon foam is obtained after being cooled to room temperature.
White Flocculus is collected after pomelo peel is divested exocuticle, natural air drying after being washed with deionized 3 times, and take
500g White Flocculus is fitted into steam blasting tank, and it is 250 DEG C of water vapours to be passed through 2.5MPa temperature into steam blasting tank, is protected
Moment opens steam blasting tank valve after holding 4min, is taken out after pressure release to normal pressure, then it is 85 DEG C of deionized waters to be immersed in 3L temperature
Middle 50min takes out natural air drying, obtains Steam explosion treatment pomelo peel, takes 300g Steam explosion treatment pomelo peels that 1000g matter is added
It is 15min to be handled with 300W ultrasonic echographies, then be transferred in hydrothermal reaction kettle, at 200 DEG C in 5% glucose solution to measure score
6h is reacted, filter residue is collected by filtration after being cooled to room temperature, filter residue is washed with deionized 5 times, then filter residue is placed in vacuum drying chamber
In, dry 3h, obtains skeleton charcoal at 60 DEG C, takes 600g absolute ethyl alcohols, 240g acetonitriles, 30g ammonium metavanadates, and 10g mass fractions are
25% ammonium hydroxide is fitted into flask and is uniformly mixed, and adds 50g skeleton charcoals, and 30min is ultrasonically treated with 300W, is stirred in 180r/min
Under the conditions of, 10g butyl titanates are added dropwise, continue to filter to obtain filter cake after stirring 3h, wash filter cake with absolute ethyl alcohol is placed on for 5 times very
In empty drying box, dry 3h, obtains foam carbon precursor at 105 DEG C, by foam carbon precursor loading tube formula stove, in high-purity argon
Under atmosphere is enclosed, 400 DEG C of heat preservation calcining 30min are warming up to 2 DEG C/min, then 550 DEG C of heat preservation calcining 3h are warming up to 1 DEG C/min,
Formaldehyde degradation by photocatalytic oxidation process function Carbon foam is obtained after being cooled to room temperature.
The Carbon foam of formaldehyde degradation by photocatalytic oxidation process function Carbon foam and the production of Zhejiang company prepared by the present invention is examined
It surveys, specific testing result such as following table table 1：
Detection method：
（1）Formaldehyde removal experiment：
Light-catalyzed reaction carries out in photocatalytic reaction device is made in laboratory by oneself.By gained formaldehyde degradation by photocatalytic oxidation process function Carbon foam
It is fixed on 1/3 position of top of reaction unit, injects 1 μ L formalins to generating means, opens micro circulation pump, ready to balance volatilization
After 20min, opens ultraviolet lamp and sampled every 20min formaldehyde testers, test residual formaldehyde amount, calculate degradation rate according to the following formula
V1V2/m×100%
Wherein, V1For 20min when formaldehyde balance volatilization value, V2For residual formaldehyde content in the container that measures.
1 formaldehyde degradation by photocatalytic oxidation process function Carbon foam performance characterization of table
The formaldehyde degradation by photocatalytic oxidation process function Carbon foam that as shown in Table 1 prepared by the present invention, photocatalytic activity is high, PARA FORMALDEHYDE PRILLS(91,95) gas
Absorption degradation performance is good, has a vast market value and application prospect.
Claims (6)
1. a kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam, which is characterized in that specifically preparation process is：
（1）White Flocculus is collected after pomelo peel is divested exocuticle, washing is fitted into steam blasting in steam blasting tank after air-drying,
It is air-dried after being cleaned with hot-water soak, obtains Steam explosion treatment pomelo peel；
（2）It is to be ultrasonically treated in 5% glucose solution, then to be transferred to hydro-thermal anti-to take Steam explosion treatment pomelo peel that mass fraction is added
It answers in kettle and reacts, cooled and filtered collects filter residue and filter residue washing and drying is obtained skeleton charcoal；
（3）It takes absolute ethyl alcohol, acetonitrile, ammonium metavanadate, mass fraction to be fitted into flask for 25% ammonium hydroxide to be uniformly mixed, adds bone
Frame charcoal is ultrasonically treated, and butyl titanate is added dropwise and filters to obtain filter cake after stirring 2~3h, filter cake alcohol is washed drying, before obtaining Carbon foam
Drive body；
（4）By in foam carbon precursor loading tube formula stove, calcining is kept the temperature under high-purity argon gas atmosphere, and light is obtained after being cooled to room temperature and is urged
Change degradation of formaldehyde function Carbon foam.
2. a kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam as described in claim 1, which is characterized in that step
（1）The steam blasting process is that 1.5~2.5MPa temperature is passed through into steam blasting tank is 220~250 DEG C of water vapours, is kept
Moment opens steam blasting tank valve after 3~4min, is taken out after pressure release to normal pressure.
3. a kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam as described in claim 1, which is characterized in that step
（2）The mass ratio of the Steam explosion treatment pomelo peel and glucose solution is 1：2~1：5.
4. a kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam as described in claim 1, which is characterized in that step
（2）The reaction temperature is 180~200 DEG C.
5. a kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam as described in claim 1, which is characterized in that step
（3）The absolute ethyl alcohol, acetonitrile, ammonium metavanadate, ammonium hydroxide, skeleton charcoal, the parts by weight of butyl titanate are anhydrous for 500~600 parts
Ethyl alcohol, 200~240 parts of acetonitriles, 20~30 parts of ammonium metavanadates, 5~10 parts of ammonium hydroxide, 30~50 parts of skeleton charcoals, 8~10 parts of metatitanic acids four
Butyl ester.
6. a kind of preparation method of formaldehyde degradation by photocatalytic oxidation process function Carbon foam as described in claim 1, which is characterized in that step
（4）The heat preservation calcination process calcines 20~30min to be warming up to 300~400 DEG C of heat preservations with 2 DEG C/min, then with 1 DEG C/min liters
2~3h are calcined in temperature to 500~550 DEG C of heat preservations.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101972662A (en) * | 2010-10-27 | 2011-02-16 | 华北电力大学（保定） | Preparation and use methods of nitrogen-vanadium co-doped modified titanium dioxide catalyst |
| CN105702969A (en) * | 2016-03-24 | 2016-06-22 | 仇颖莹 | Preparation method for modified shaddock peel foamy carbon microbial fuel cell positive electrode material |
| CN106362686A (en) * | 2016-09-19 | 2017-02-01 | 天津科技大学 | Preparation method of composite material for gathering and degrading benzene series organic wastewater |
| CN107899549A (en) * | 2017-11-21 | 2018-04-13 | 常州创索新材料科技有限公司 | A kind of preparation method of modified pomelo peel fibrous oil absorption material |
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2018
- 2018-04-24 CN CN201810371601.1A patent/CN108636435A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972662A (en) * | 2010-10-27 | 2011-02-16 | 华北电力大学（保定） | Preparation and use methods of nitrogen-vanadium co-doped modified titanium dioxide catalyst |
| CN105702969A (en) * | 2016-03-24 | 2016-06-22 | 仇颖莹 | Preparation method for modified shaddock peel foamy carbon microbial fuel cell positive electrode material |
| CN106362686A (en) * | 2016-09-19 | 2017-02-01 | 天津科技大学 | Preparation method of composite material for gathering and degrading benzene series organic wastewater |
| CN107899549A (en) * | 2017-11-21 | 2018-04-13 | 常州创索新材料科技有限公司 | A kind of preparation method of modified pomelo peel fibrous oil absorption material |
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