CN110102351A - A kind of preparation method of the PTFE photocatalysis membrana for treatment of dyeing wastewater - Google Patents
A kind of preparation method of the PTFE photocatalysis membrana for treatment of dyeing wastewater Download PDFInfo
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- CN110102351A CN110102351A CN201910448296.6A CN201910448296A CN110102351A CN 110102351 A CN110102351 A CN 110102351A CN 201910448296 A CN201910448296 A CN 201910448296A CN 110102351 A CN110102351 A CN 110102351A
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- China
- Prior art keywords
- ptfe
- photocatalysis membrana
- hydroxyquinoline
- solution
- titanium dioxide
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- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 101
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 101
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 77
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 77
- 238000004043 dyeing Methods 0.000 title claims abstract description 28
- 239000002351 wastewater Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 52
- 239000005725 8-Hydroxyquinoline Substances 0.000 claims abstract description 42
- 229960003540 oxyquinoline Drugs 0.000 claims abstract description 42
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims abstract description 42
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 24
- 229940044631 ferric chloride hexahydrate Drugs 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 17
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 16
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 55
- 235000019441 ethanol Nutrition 0.000 claims description 28
- 239000000654 additive Substances 0.000 claims description 25
- 230000000996 additive effect Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 17
- 238000004090 dissolution Methods 0.000 claims description 14
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 12
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 12
- 239000000908 ammonium hydroxide Substances 0.000 claims description 12
- 239000012046 mixed solvent Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 3
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 claims description 2
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 claims description 2
- OICSRSLRADLMGL-UHFFFAOYSA-N quinoline;quinolin-8-ol Chemical compound N1=CC=CC2=CC=CC=C21.C1=CN=C2C(O)=CC=CC2=C1 OICSRSLRADLMGL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 24
- 230000015556 catabolic process Effects 0.000 abstract description 12
- 238000006731 degradation reaction Methods 0.000 abstract description 12
- 239000003054 catalyst Substances 0.000 abstract description 6
- 229920002521 macromolecule Polymers 0.000 abstract description 6
- 210000002469 basement membrane Anatomy 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 53
- -1 polytetrafluoroethylene Polymers 0.000 description 21
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 13
- 229940012189 methyl orange Drugs 0.000 description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 12
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 238000003851 corona treatment Methods 0.000 description 10
- 210000004379 membrane Anatomy 0.000 description 10
- 239000012528 membrane Substances 0.000 description 10
- 229910010413 TiO 2 Inorganic materials 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- HLSJSNOKLIQUAO-UHFFFAOYSA-N iron;quinolin-8-ol Chemical compound [Fe].C1=CN=C2C(O)=CC=CC2=C1 HLSJSNOKLIQUAO-UHFFFAOYSA-N 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- 238000005286 illumination Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- QNPRXLGLPCTFMA-UHFFFAOYSA-N 7H-quinoline-8,8-diol Chemical compound C1=CN=C2C(O)(O)CC=CC2=C1 QNPRXLGLPCTFMA-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000002041 carbon nanotube Substances 0.000 description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-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
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000010919 dye waste Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- DQLGIONSPPKALA-UHFFFAOYSA-N phenylazanium;phenoxide Chemical compound NC1=CC=CC=C1.OC1=CC=CC=C1 DQLGIONSPPKALA-UHFFFAOYSA-N 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000009284 supercritical water oxidation Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- 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
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
- B01J37/347—Ionic or cathodic spraying; Electric discharge
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The present invention relates to techniques of Dyeing Wastewater Treatment fields, disclose a kind of preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater.Nascent state PTFE photocatalysis membrana is prepared into the following steps are included: 1) be uniformly mixed titanium dioxide with polytetrafluorethylepowder powder；2) nascent state photocatalysis membrana is put into plasma processing apparatus progress plasma discharge and handles to obtain active PTFE photocatalysis membrana；3) ferric chloride hexahydrate solution is added drop-wise in 8-hydroxyquinoline solution and obtains 8-hydroxyquinoline ferrous solution；4) active PTFE photocatalysis membrana is immersed in 8-hydroxyquinoline ferrous solution, glutaraldehyde is then added dropwise into 8-hydroxyquinoline ferrous solution, insulation reaction is drying to obtain.The present invention loads dual catalytic agent, realizes that round-the-clock catalytic degradation, high catalytic efficiency, catalyst are firmly combined with PTFE basement membrane carrier to the macromolecule organic that dyeing waste water generates, it is not easy to fall off from PTFE basement membrane carrier, avoid the secondary pollution of water body.
Description
Technical field
The present invention relates to techniques of Dyeing Wastewater Treatment fields, more particularly, to a kind of PTFE light for treatment of dyeing wastewater
The preparation method of catalytic membrane.
Background technique
With the development of printing and dyeing industry, the number of organic synthesis fuel increases year by year, and various printing and dyeing use and have engine dyeing
The discharge of material waste water seriously polluted the water environment of nature, and dyeing waste water is to cause one of the largest source of pollution of water pollution,
It causes and seriously threatens to the sustainable development of the mankind and ecological environment.The general wastewater flow rate of organic dye waste water is big, and coloration is larger,
Distribution is wider, and water-quality constituents is complicated and change of water quality is larger, and wherein content of organics is big, and most organic matters contain benzene, naphthalene
Etc. being difficult to biodegradable aromatic group, water ecological environment is seriously polluted, and the coloration of water body changes, and influences the photosynthetic of water plant
Effect, and organic dyestuff can be generated during Transport And Transformation it is very high organic containing toxicity such as halide, nitro compounds, aniline phenol
Object, these organic matters will lead to organism occur canceration, influence aquatile health breeding and aquatic ecosystem it is good
Circulation, potential threat the health of the mankind.The method of processing organic wastewater mainly has at present: physical treatment process, including absorption method
With membrane separation process etc.；Physicochemical treatment method, including flocculent precipitation and electrochemical degradation method etc.；Chemical oxidization method, including sweet smell
Reagent oxidation method and Ozonation etc.；Biological treatment, including aerobic and Anaerobic Methods in Treating etc.；And high temperature depth oxygen
Change method mainly includes wet air oxidation, supercritical water oxidation method and incineration method etc..In addition with the hair of water treatment technology
Exhibition, some new processing techniques such as advanced oxidation processes, supercritical ultrasonics technology, magnetization method, photocatalytic oxidation etc..
China Patent Publication No. CN105731711 is disclosed at a kind of waste water of carbon nanotube/zinc oxide PTFE photocatalysis membrana
Device and its application are managed, carbon nanotube/zinc oxide composite photocatalyst is combined with PTFE (polytetrafluoroethylene (PTFE)) film, carbon is received
Mitron/zinc oxide composite photocatalyst degrades to the substance of film surface under the conditions of visible light shines, to slow down PTFE film
Pollution, extend the service life of permeable membrane, the problem is that using carbon nanotube/zinc oxide by mixed method by two
Person mixes with polytetrafluoroethylene (PTFE), is subsequently placed in cold night molding, the zinc oxide with catalytic action in mold and is in polytetrafluoroethylene (PTFE)
The inside of material, zinc oxide and waste water area are small, and organic macromolecule degradation efficiency is low, and in addition it can only be in the condition of illumination
Lower degradation, limits its application；China Patent Publication No. CN109248711 discloses a kind of PPS photocatalysis membrana of carried titanium dioxide
Preparation method, comprising the following steps: titanium source, sulfate and ethyl alcohol, the composite solution for being hydrated hydrochloric acid are mixed, and at normal temperature
Stirring obtains TiO 2 precursor solution, PPS microporous barrier is placed in ethyl alcohol and is soaked, nitrate is then transferred to homogeneous
It is handled in solution, PPS microporous barrier is immersed in titanium dioxide precursor solution, is together transferred in hydrothermal reaction kettle and carries out water
Thermal response obtains PPS@TiO after washing and drying2Photocatalysis membrana, the problem is that titanium dioxide deposition is existed using hydro-thermal method
PPS micropore film surface, titanium dioxide are easy to shed into from PPS micropore film surface to cause secondary pollution of water in water body, simultaneously
Catalytic action could occur under ultraviolet light irradiation condition for titanium dioxide needs, and application environment is restricted.
Summary of the invention
The present invention is to provide a kind of PTFE photocatalysis membrana for treatment of dyeing wastewater to overcome the above technical problem
Preparation method loads dual catalytic agent using PTFE as matrix, realizes round-the-clock urge to the macromolecule organic that dyeing waste water generates
Change degradation, high catalytic efficiency, catalyst is firmly combined with PTFE basement membrane carrier, it is not easy to be fallen off, be avoided from PTFE basement membrane carrier
Cause the secondary pollution of water body.
To achieve the goals above, the invention adopts the following technical scheme: a kind of PTFE light for treatment of dyeing wastewater
The preparation method of catalytic membrane, comprising the following steps:
1) titanium dioxide and polytetrafluorethylepowder powder are passed through into pre-shaping device after mixing and are prepared into column idiosome, by idiosome
Being sent into extruder makes idiosome become strip sheet material, and strip sheet material obtains broadband by roll process, and broadband is successively drawn by longitudinal
It rises and cross directional stretch obtains nascent state PTFE photocatalysis membrana；
2) by nascent state photocatalysis membrana be put into plasma processing apparatus carry out plasma discharge handle active PTFE light is urged
Change film；
3) dissolution in alcohol solvent is added in 8-hydroxyquinoline and obtains 8-hydroxyquinoline solution；Ethyl alcohol is added in ferric chloride hexahydrate
Middle dissolution obtains ferric chloride hexahydrate solution；Ferric chloride hexahydrate solution is added drop-wise in 8-hydroxyquinoline solution and obtains 8- hydroxyl quinoline
Quinoline ferrous solution；
4) active PTFE photocatalysis membrana is immersed in 8-hydroxyquinoline ferrous solution, is then added dropwise penta into 8-hydroxyquinoline ferrous solution
Dialdehyde adds acid for adjusting pH to 3-4, insulation reaction, takes out activity PTFE photocatalysis membrana, dry PTFE photocatalysis membrana.
Titanium deoxide catalyst and polytetrafluorethylepowder powder are that raw material uses transverse direction to draw high and longitudinally draw high by the present invention
Method prepares titania-doped polytetrafluoroethylene film, since titanium dioxide and support material polytetrafluoroethylene (PTFE) to be mixed with
PTFE photocatalysis membrana, so titania additive is inside PTFE film, it is not easy to fall off from PTFE film surface, avoid titanium dioxide
Secondary pollution is caused to water body.
Titania-doped polytetrafluoroethylene film microcosmic surface is in fiber-node structure as shown in Figure 1, in cross directional stretch
More hole gap, the TiO 2 particles energy adulterated in polytetrafluoroethylene film are generated with film surface under the action of longitudinal stretching
Enough it is exposed, increases the photocatalysis area of TiO 2 particles, so that its catalytic efficiency is improved, then by plasma
Reason, polytetrafluoroethylene film are further exposed titanium dioxide granule under the action of plasma etching, further increase
The photocatalysis area of TiO 2 particles.
Corona treatment corrosion makes polytetrafluoroethylene film become the polytetrafluoroethylene film activated, the polytetrafluoroethylene (PTFE) of activation
8-hydroxyquinoline iron, the surface of polytetrafluoroethylene film is keyed to by glutaraldehyde by the active stronger hydroxyl group of film surface,
To make on polytetrafluoroethylene film load 8-hydroxyquinoline iron catalyst, chemical bond it is bonded under the action of, 8-hydroxyquinoline
Iron is not easy to fall off from polytetrafluoroethylene film；In addition, 8-hydroxyquinoline iron catalyst does not need to issue in ultraviolet light or light
Raw catalytic degradation effect need to only add the oxidant (such as hydrogen peroxide) matched with 8-hydroxyquinoline iron catalyst and form catalysis
Oxidation system can realize degradation to the macromolecule in dyeing and printing sewage.Pass through Titanium Dioxide degradation and 8-hydroxyquinoline
The effect of iron catalytic degradation combines, and forms dual catalytic effect, not only improves catalytic degradation efficiency, and extension degradable macromolecule is organic
The type of object.
Preferably, the mass ratio of titanium dioxide and polytetrafluorethylepowder powder is 1:20-30 in the step 1).
Preferably, step 2) the plasma processing power is 100-150W, plasma processing time 40-
60s。
Corona treatment power and time control are most important, and corona treatment power is excessive, and overlong time can be made
At the excessive corrosion of polytetrafluoroethylene film, titanium dioxide granule over-exposure, which comes out, causes titanium dioxide granule from polytetrafluoroethylene (PTFE)
It falls off on carrier；Corona treatment power is too small, and the time is too short, polytetrafluoroethylene film surface emissivity generate active group compared with
It is few, it is unfavorable for the bonded polytetrafluoroethylene (PTFE) membrane carrier of 8-hydroxyquinoline iron.
Preferably, glutaraldehyde additive amount is the 1-5wt% of 8-hydroxyquinoline ferrous solution in the step 4).
Preferably, insulation reaction temperature is 35-40 DEG C in the step 4), the insulation reaction time is 20-50min.
Preferably, drying temperature is 40-60 DEG C in the step 4).
A kind of preparation method of the PTFE photocatalysis membrana for treatment of dyeing wastewater, titanium dioxide passes through in the step 1)
Cross modification, comprising the following steps:
By the in the mixed solvent of titanium dioxide addition second alcohol and water, the mass ratio of ethyl alcohol and water is 1:10-20, titanium dioxide addition
Amount is the 2-5wt% of mixed solvent additive amount, stirs to obtain suspension, ammonium hydroxide is added under room temperature, positive silicon is then slowly added dropwise
The mass ratio of acetoacetic ester, ethyl orthosilicate and titanium dioxide is 1:0.2-0.5, and ammonium hydroxide additive amount is the 2- of ethyl orthosilicate
5wt%, is aged 4-8h, centrifugal filtration, ethanol washing, be placed in baking oven at 70-80 DEG C dry 5-10h to get.
The catalytic action of titanium dioxide is easy to cause to corrode to the chemical group of polytetrafluoroethylene (PTFE) basement membrane and membrane surface, breaks
Chemical bond between bad Haloport F and 8-hydroxyquinoline iron and Haloport F, in response to this problem, the present invention
Team deposits layer of silicon dioxide in titanium dioxide surface, avoids the corrosiveness of optically catalytic TiO 2.
Therefore, the invention has the following beneficial effects: (1) titania additives inside PTFE film, it is not easy to from PTFE
Film surface falls off, and titanium dioxide is avoided to cause secondary pollution to water body；(2) film table under the action of cross directional stretch and longitudinal stretching
Face generates more hole gap, and the TiO 2 particles adulterated in polytetrafluoroethylene film can be exposed, and increases titanium dioxide
The photocatalysis area of titanium particle, to improve its catalytic efficiency；(3) corona treatment, polytetrafluoroethylene film is in plasma
Titanium dioxide granule further is exposed under the action of corrosion, further increases the photocatalysis area of TiO 2 particles；
(4) it is degraded by Titanium Dioxide and is combined with the effect of 8-hydroxyquinoline iron catalytic degradation, formed dual catalytic effect, not only mention
High catalytic degradation efficiency extends the type of degradable macromolecule organic matter.
Detailed description of the invention
Fig. 1 is that the SEM on nascent state PTFE photocatalysis membrana surface of the present invention schemes.
Specific embodiment
Below by specific embodiment, technical scheme is described further.
In the present invention, if not refering in particular to, used raw material and equipment etc. are commercially available or commonly used in the art,
Method in embodiment is unless otherwise instructed the conventional method of this field.
Embodiment 1
The preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater, comprising the following steps:
1) titanium dioxide and polytetrafluorethylepowder powder are passed through into pre-shaping device after mixing and are prepared into column idiosome, titanium dioxide
The mass ratio of titanium and polytetrafluorethylepowder powder is 1:25, so that idiosome is become strip sheet material, extrusion pressure idiosome feeding extruder
For 2.5Mpa, strip sheet material is obtained by roll process with a thickness of 200 μm of broadbands, and vertical drawing is longitudinally drawn high to obtain in broadband at 100 DEG C
Base band, it is vertical that base band cross directional stretch at 150 DEG C is drawn to obtain nascent state PTFE photocatalysis membrana；
2) nascent state photocatalysis membrana is put into plasma processing apparatus and carries out plasma discharge processing, corona treatment function
Rate is 120W, plasma processing time 50s, obtains active PTFE photocatalysis membrana；
3) dissolution in 250mL alcohol solvent is added in 3.2g 8-hydroxyquinoline and obtains 8-hydroxyquinoline solution；2.0g six is hydrated
Iron chloride is added dissolution in 150mL ethyl alcohol and obtains ferric chloride hexahydrate solution；Ferric chloride hexahydrate solution is added drop-wise to 8- hydroxyl
8-hydroxyquinoline ferrous solution is obtained in quinoline solution；
4) the active PTFE photocatalysis membrana of 6g is immersed in 8-hydroxyquinoline ferrous solution, is then dripped into 8-hydroxyquinoline ferrous solution
Add glutaraldehyde, glutaraldehyde additive amount is the 2wt% of 8-hydroxyquinoline ferrous solution, adds acid for adjusting pH to 3, insulation reaction, heat preservation is instead
Answering temperature is 38 DEG C, and the insulation reaction time is 30min, takes out activity PTFE photocatalysis membrana, and dry 2h, obtains PTFE light at 50 DEG C
Catalytic membrane.
It is that 2cm photocatalysis membrana is placed in the methyl orange aqueous solution of 25mL 0.05g/L, then 0.2mL dioxygen is added dropwise by diameter
Water, illumination 10min, methyl orange removal rate reach 99.6%.
Embodiment 2
The preparation of improved silica, comprising the following steps:
By the in the mixed solvent of titanium dioxide addition second alcohol and water, the mass ratio of ethyl alcohol and water is 1:15, titanium dioxide additive amount
For the 3wt% of mixed solvent additive amount, suspension is stirred to obtain, ammonium hydroxide is added under room temperature, positive silicic acid second is then slowly added dropwise
The mass ratio of ester, ethyl orthosilicate and titanium dioxide is 1:0.4, and ammonium hydroxide additive amount is the 2wt% of ethyl orthosilicate, is aged 5h,
Centrifugal filtration, ethanol washing, be placed in baking oven at 75 DEG C dry 8h to get.
The preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater, comprising the following steps:
1) titanium dioxide and polytetrafluorethylepowder powder are passed through into pre-shaping device after mixing and are prepared into column idiosome, titanium dioxide
The mass ratio of titanium and polytetrafluorethylepowder powder is 1:25, so that idiosome is become strip sheet material, extrusion pressure idiosome feeding extruder
For 2.5Mpa, strip sheet material is obtained by roll process with a thickness of 200 μm of broadbands, and vertical drawing is longitudinally drawn high to obtain in broadband at 100 DEG C
Base band, it is vertical that base band cross directional stretch at 150 DEG C is drawn to obtain nascent state PTFE photocatalysis membrana；
2) nascent state photocatalysis membrana is put into plasma processing apparatus and carries out plasma discharge processing, corona treatment function
Rate is 120W, plasma processing time 50s, obtains active PTFE photocatalysis membrana；
3) dissolution in 250mL alcohol solvent is added in 3.2g 8-hydroxyquinoline and obtains 8-hydroxyquinoline solution；2.0g six is hydrated
Iron chloride is added dissolution in 150mL ethyl alcohol and obtains ferric chloride hexahydrate solution；Ferric chloride hexahydrate solution is added drop-wise to 8- hydroxyl
8-hydroxyquinoline ferrous solution is obtained in quinoline solution；
4) the active PTFE photocatalysis membrana of 6g is immersed in 8-hydroxyquinoline ferrous solution, is then dripped into 8-hydroxyquinoline ferrous solution
Add glutaraldehyde, glutaraldehyde additive amount is the 2wt% of 8-hydroxyquinoline ferrous solution, adds acid for adjusting pH to 3, insulation reaction, heat preservation is instead
Answering temperature is 38 DEG C, and the insulation reaction time is 30min, takes out activity PTFE photocatalysis membrana, and dry 2h, obtains PTFE light at 50 DEG C
Catalytic membrane.
It is that 2cm photocatalysis membrana is placed in the methyl orange aqueous solution of 25mL 0.05g/L, then 0.2mL dioxygen is added dropwise by diameter
Water, illumination 10min, methyl orange removal rate reach 99.4%.
Embodiment 3
The preparation of improved silica, comprising the following steps:
By the in the mixed solvent of titanium dioxide addition second alcohol and water, the mass ratio of ethyl alcohol and water is 1:15, titanium dioxide additive amount
For the 3wt% of mixed solvent additive amount, suspension is stirred to obtain, ammonium hydroxide is added under room temperature, positive silicic acid second is then slowly added dropwise
The mass ratio of ester, ethyl orthosilicate and titanium dioxide is 1:0.4, and ammonium hydroxide additive amount is the 2.5wt% of ethyl orthosilicate, ageing
5h, centrifugal filtration, ethanol washing, be placed in baking oven at 72 DEG C dry 8h to get.
The preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater, comprising the following steps:
1) titanium dioxide and polytetrafluorethylepowder powder are passed through into pre-shaping device after mixing and are prepared into column idiosome, titanium dioxide
The mass ratio of titanium and polytetrafluorethylepowder powder is 1:22, so that idiosome is become strip sheet material, extrusion pressure idiosome feeding extruder
For 2.5Mpa, strip sheet material is obtained by roll process with a thickness of 200 μm of broadbands, and vertical drawing is longitudinally drawn high to obtain in broadband at 100 DEG C
Base band, it is vertical that base band cross directional stretch at 150 DEG C is drawn to obtain nascent state PTFE photocatalysis membrana；
2) nascent state photocatalysis membrana is put into plasma processing apparatus and carries out plasma discharge processing, corona treatment function
Rate is 140W, plasma processing time 45s, obtains active PTFE photocatalysis membrana；
3) dissolution in 250mL alcohol solvent is added in 3.2g 8-hydroxyquinoline and obtains 8-hydroxyquinoline solution；2.0g six is hydrated
Iron chloride is added dissolution in 150mL ethyl alcohol and obtains ferric chloride hexahydrate solution；Ferric chloride hexahydrate solution is added drop-wise to 8- hydroxyl
8-hydroxyquinoline ferrous solution is obtained in quinoline solution；
4) the active PTFE photocatalysis membrana of 6g is immersed in 8-hydroxyquinoline ferrous solution, is then dripped into 8-hydroxyquinoline ferrous solution
Add glutaraldehyde, glutaraldehyde additive amount is the 3wt% of 8-hydroxyquinoline ferrous solution, adds acid for adjusting pH to 3.5, insulation reaction is kept the temperature
Reaction temperature is 40 DEG C, and the insulation reaction time is 20min, takes out activity PTFE photocatalysis membrana, and dry 3h, obtains PTFE at 40 DEG C
Photocatalysis membrana.
It is that 2cm photocatalysis membrana is placed in the methyl orange aqueous solution of 25mL 0.05g/L, then 0.2mL dioxygen is added dropwise by diameter
Water, illumination 10min, methyl orange removal rate reach 99.5%.
Embodiment 4
The preparation of improved silica, comprising the following steps:
By the in the mixed solvent of titanium dioxide addition second alcohol and water, the mass ratio of ethyl alcohol and water is 1:20, titanium dioxide additive amount
For the 5wt% of mixed solvent additive amount, suspension is stirred to obtain, ammonium hydroxide is added under room temperature, positive silicic acid second is then slowly added dropwise
The mass ratio of ester, ethyl orthosilicate and titanium dioxide is 1:0.5, and ammonium hydroxide additive amount is the 5wt% of ethyl orthosilicate, is aged 8h,
Centrifugal filtration, ethanol washing, be placed in baking oven at 80 DEG C dry 5h to get.
The preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater, comprising the following steps:
1) titanium dioxide and polytetrafluorethylepowder powder are passed through into pre-shaping device after mixing and are prepared into column idiosome, titanium dioxide
The mass ratio of titanium and polytetrafluorethylepowder powder is 1:30, so that idiosome is become strip sheet material, extrusion pressure idiosome feeding extruder
For 2.5Mpa, strip sheet material is obtained by roll process with a thickness of 200 μm of broadbands, and vertical drawing is longitudinally drawn high to obtain in broadband at 100 DEG C
Base band, it is vertical that base band cross directional stretch at 150 DEG C is drawn to obtain nascent state PTFE photocatalysis membrana；
2) nascent state photocatalysis membrana is put into plasma processing apparatus and carries out plasma discharge processing, corona treatment function
Rate is 150W, plasma processing time 40s, obtains active PTFE photocatalysis membrana；
3) dissolution in 250mL alcohol solvent is added in 3.2g 8-hydroxyquinoline and obtains 8-hydroxyquinoline solution；2.0g six is hydrated
Iron chloride is added dissolution in 150mL ethyl alcohol and obtains ferric chloride hexahydrate solution；Ferric chloride hexahydrate solution is added drop-wise to 8- hydroxyl
8-hydroxyquinoline ferrous solution is obtained in quinoline solution；
4) the active PTFE photocatalysis membrana of 6g is immersed in 8-hydroxyquinoline ferrous solution, is then dripped into 8-hydroxyquinoline ferrous solution
Add glutaraldehyde, glutaraldehyde additive amount is the 5wt% of 8-hydroxyquinoline ferrous solution, adds acid for adjusting pH to 4, insulation reaction, heat preservation is instead
Answering temperature is 40 DEG C, and the insulation reaction time is 20min, takes out activity PTFE photocatalysis membrana, and dry 1h, obtains PTFE light at 60 DEG C
Catalytic membrane.
It is that 2cm photocatalysis membrana is placed in the methyl orange aqueous solution of 25mL 0.05g/L, then 0.2mL dioxygen is added dropwise by diameter
Water, illumination 10min, methyl orange removal rate reach 99.4%.
Embodiment 5
The preparation of improved silica, comprising the following steps:
By the in the mixed solvent of titanium dioxide addition second alcohol and water, the mass ratio of ethyl alcohol and water is 1:10, titanium dioxide additive amount
For the 2wt% of mixed solvent additive amount, suspension is stirred to obtain, ammonium hydroxide is added under room temperature, positive silicic acid second is then slowly added dropwise
The mass ratio of ester, ethyl orthosilicate and titanium dioxide is 1:0.2, and ammonium hydroxide additive amount is the 2wt% of ethyl orthosilicate, is aged 4h,
Centrifugal filtration, ethanol washing, be placed in baking oven at 70 DEG C dry 10h to get.
The preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater, comprising the following steps:
1) titanium dioxide and polytetrafluorethylepowder powder are passed through into pre-shaping device after mixing and are prepared into column idiosome, titanium dioxide
The mass ratio of titanium and polytetrafluorethylepowder powder is 1:20, so that idiosome is become strip sheet material, extrusion pressure idiosome feeding extruder
For 2.5Mpa, strip sheet material is obtained by roll process with a thickness of 200 μm of broadbands, and vertical drawing is longitudinally drawn high to obtain in broadband at 100 DEG C
Base band, it is vertical that base band cross directional stretch at 150 DEG C is drawn to obtain nascent state PTFE photocatalysis membrana；
2) nascent state photocatalysis membrana is put into plasma processing apparatus and carries out plasma discharge processing, corona treatment function
Rate is 100W, plasma processing time 60s, obtains active PTFE photocatalysis membrana；
3) dissolution in 250mL alcohol solvent is added in 3.2g 8-hydroxyquinoline and obtains 8-hydroxyquinoline solution；2.0g six is hydrated
Iron chloride is added dissolution in 150mL ethyl alcohol and obtains ferric chloride hexahydrate solution；Ferric chloride hexahydrate solution is added drop-wise to 8- hydroxyl
8-hydroxyquinoline ferrous solution is obtained in quinoline solution；
4) the active PTFE photocatalysis membrana of 6g is immersed in 8-hydroxyquinoline ferrous solution, is then dripped into 8-hydroxyquinoline ferrous solution
Add glutaraldehyde, glutaraldehyde additive amount is the 1wt% of 8-hydroxyquinoline ferrous solution, adds acid for adjusting pH to 3, insulation reaction, heat preservation is instead
Answering temperature is 35 DEG C, and the insulation reaction time is 50min, takes out activity PTFE photocatalysis membrana, and dry 3h, obtains PTFE light at 40 DEG C
Catalytic membrane.
It is that 2cm photocatalysis membrana is placed in the methyl orange aqueous solution of 25mL 0.05g/L, then 0.2mL dioxygen is added dropwise by diameter
Water, illumination 10min, methyl orange removal rate reach 99.3%.
Comparative example 1
Comparative example 1 is the difference from embodiment 1 is that without passing through longitudinal stretching and transverse direction in the preparation process of PTFE photocatalysis membrana
It draws high.
It is that 2cm photocatalysis membrana is placed in the methyl orange aqueous solution of 25mL 0.05g/L, then 0.2mL dioxygen is added dropwise by diameter
Water, illumination 10min, methyl orange removal rate reach 90.8%.
The available photocatalysis membrana without by laterally drawing high and longitudinally drawing high is compared to useless by embodiment and comparative example
Methyl orange removal rate is significantly lower than the photocatalysis membrana by laterally drawing high and longitudinally drawing high in water, this is because not by drawing high
Photocatalysis membrana TiO 2 particles be largely embedded in inside photocatalysis membrana, it is few with waste water effective area.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (7)
1. a kind of preparation method of the PTFE photocatalysis membrana for treatment of dyeing wastewater, which comprises the following steps:
1) titanium dioxide and polytetrafluorethylepowder powder are passed through into pre-shaping device after mixing and are prepared into column idiosome, by idiosome
Being sent into extruder makes idiosome become strip sheet material, and strip sheet material obtains broadband by roll process, and broadband is successively drawn by longitudinal
It rises and cross directional stretch obtains nascent state PTFE photocatalysis membrana；
2) by nascent state photocatalysis membrana be put into plasma processing apparatus carry out plasma discharge handle active PTFE light is urged
Change film；
3) dissolution in alcohol solvent is added in 8-hydroxyquinoline and obtains 8-hydroxyquinoline solution；Ethyl alcohol is added in ferric chloride hexahydrate
Middle dissolution obtains ferric chloride hexahydrate solution；Ferric chloride hexahydrate solution is added drop-wise in 8-hydroxyquinoline solution and obtains 8- hydroxyl quinoline
Quinoline ferrous solution；
4) active PTFE photocatalysis membrana is immersed in 8-hydroxyquinoline ferrous solution, is then added dropwise penta into 8-hydroxyquinoline ferrous solution
Dialdehyde adds acid for adjusting pH to 3-4, insulation reaction, takes out activity PTFE photocatalysis membrana, dry PTFE photocatalysis membrana.
2. a kind of preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater according to claim 1, feature
It is, the mass ratio of titanium dioxide and polytetrafluorethylepowder powder is 1:20-30 in the step 1).
3. a kind of preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater according to claim 1, feature
It is, the step 2 plasma processing power is 100-150W, and plasma processing time is 40-60 s.
4. a kind of preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater according to claim 1, feature
It is, glutaraldehyde additive amount is the 1-5wt% of 8-hydroxyquinoline ferrous solution in the step 4).
5. a kind of preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater according to claim 1, feature
It is, insulation reaction temperature is 35-40 DEG C in the step 4), and the insulation reaction time is 20-50min.
6. a kind of preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater according to claim 1, feature
It is, drying temperature is 40-60 DEG C in the step 4).
7. a kind of preparation method of PTFE photocatalysis membrana for treatment of dyeing wastewater according to claim 1, feature
It is, titanium dioxide passes through modification in the step 1), comprising the following steps:
By the in the mixed solvent of titanium dioxide addition second alcohol and water, the mass ratio of ethyl alcohol and water is 1:10-20, and titanium dioxide adds
Dosage is the 2-5wt% of mixed solvent additive amount, stirs to obtain suspension, ammonium hydroxide is added under room temperature, positive silicon is then slowly added dropwise
The mass ratio of acetoacetic ester, ethyl orthosilicate and titanium dioxide is 1:0.2-0.5, and ammonium hydroxide additive amount is the 2- of ethyl orthosilicate
5wt%, is aged 4-8h, centrifugal filtration, ethanol washing, be placed in baking oven at 70-80 DEG C dry 5-10h to get.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112387270A (en) * | 2020-12-07 | 2021-02-23 | 清华大学 | Photocatalytic material for eliminating VOCs and ozone and multilayer-hole-plate type photocatalytic reactor |
| CN113877442A (en) * | 2021-11-04 | 2022-01-04 | 阿克菲姆膜材(嘉兴)有限公司 | Supported PTFE hollow fiber membrane with catalytic function and preparation method thereof |
| CN114042387A (en) * | 2022-01-10 | 2022-02-15 | 中国科学院宁波材料技术与工程研究所 | Photocatalytic degradation dye wastewater separation multilayer composite membrane and preparation method and application thereof |
| CN115007219A (en) * | 2022-07-05 | 2022-09-06 | 江南大学 | TiO 2 2 Forward-osmosis photocatalytic membrane modified by PTFE (polytetrafluoroethylene) supporting layer and preparation method thereof |
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2019
- 2019-05-27 CN CN201910448296.6A patent/CN110102351A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112387270A (en) * | 2020-12-07 | 2021-02-23 | 清华大学 | Photocatalytic material for eliminating VOCs and ozone and multilayer-hole-plate type photocatalytic reactor |
| CN112387270B (en) * | 2020-12-07 | 2021-11-30 | 清华大学 | Photocatalytic material for eliminating VOCs and ozone and multilayer-hole-plate type photocatalytic reactor |
| CN113877442A (en) * | 2021-11-04 | 2022-01-04 | 阿克菲姆膜材(嘉兴)有限公司 | Supported PTFE hollow fiber membrane with catalytic function and preparation method thereof |
| CN114042387A (en) * | 2022-01-10 | 2022-02-15 | 中国科学院宁波材料技术与工程研究所 | Photocatalytic degradation dye wastewater separation multilayer composite membrane and preparation method and application thereof |
| CN114042387B (en) * | 2022-01-10 | 2022-04-26 | 中国科学院宁波材料技术与工程研究所 | Photocatalytic degradation dye wastewater separation multilayer composite membrane and preparation method and application thereof |
| CN115007219A (en) * | 2022-07-05 | 2022-09-06 | 江南大学 | TiO 2 2 Forward-osmosis photocatalytic membrane modified by PTFE (polytetrafluoroethylene) supporting layer and preparation method thereof |
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Application publication date: 20190809 |