CN110124706B - Preparation method of titanium carbide/indium zinc sulfide composite visible-light-driven photocatalyst - Google Patents
Preparation method of titanium carbide/indium zinc sulfide composite visible-light-driven photocatalyst Download PDFInfo
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- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- NJWNEWQMQCGRDO-UHFFFAOYSA-N indium zinc Chemical compound [Zn].[In] NJWNEWQMQCGRDO-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000005083 Zinc sulfide Substances 0.000 title claims abstract description 30
- 229910052984 zinc sulfide Inorganic materials 0.000 title claims abstract description 30
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000003054 catalyst Substances 0.000 claims abstract description 14
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- UDWJTDBVEGNWAB-UHFFFAOYSA-N zinc indium(3+) sulfide Chemical compound [S-2].[Zn+2].[In+3] UDWJTDBVEGNWAB-UHFFFAOYSA-N 0.000 claims description 18
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 14
- PSCMQHVBLHHWTO-UHFFFAOYSA-K indium(iii) chloride Chemical compound Cl[In](Cl)Cl PSCMQHVBLHHWTO-UHFFFAOYSA-K 0.000 claims description 14
- 239000002105 nanoparticle Substances 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 7
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004246 zinc acetate Substances 0.000 claims description 7
- 238000005530 etching Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 5
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims description 5
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 5
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 5
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000005642 Oleic acid Substances 0.000 claims description 5
- 229960001701 chloroform Drugs 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 5
- 229940107698 malachite green Drugs 0.000 claims description 5
- FDZZZRQASAIRJF-UHFFFAOYSA-M malachite green Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](C)C)C=C1 FDZZZRQASAIRJF-UHFFFAOYSA-M 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 5
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 229910009818 Ti3AlC2 Inorganic materials 0.000 claims 1
- 229910009819 Ti3C2 Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 10
- 238000002604 ultrasonography Methods 0.000 description 6
- 239000010936 titanium Substances 0.000 description 5
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 4
- 230000001699 photocatalysis Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- YYKKIWDAYRDHBY-UHFFFAOYSA-N [In]=S.[Zn] Chemical compound [In]=S.[Zn] YYKKIWDAYRDHBY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000004770 chalcogenides Chemical class 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
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- 238000004146 energy storage Methods 0.000 description 1
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- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- GKCNVZWZCYIBPR-UHFFFAOYSA-N sulfanylideneindium Chemical compound [In]=S GKCNVZWZCYIBPR-UHFFFAOYSA-N 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention relates to a preparation method of a titanium carbide/indium zinc sulfide composite visible light catalyst, which comprises the preparation of a novel two-dimensional layered material titanium carbide and titanium carbide/indium zinc sulfide composite visible light catalyst, and has the following beneficial effects: the preparation method is simple and easy to operate, the preparation conditions are easy to control, and the prepared titanium carbide/indium zinc sulfide composite visible-light-driven photocatalyst is a green pollution-free high-performance catalyst, has high photocatalytic degradation efficiency and has a certain application prospect.
Description
Technical Field
The invention belongs to the technical field of photocatalytic nano materials, and relates to a preparation method of a titanium carbide/indium zinc sulfide composite visible light catalyst.
Background
Due to global environmental pollution problems, the technology of degrading dyes in wastewater by using solar energy is receiving more and more attention. To date, expert scholars have explored various semiconductor materials, including metal oxides, sulfides, oxynitrides, and metal-free semiconductors, for photocatalytic degradation. Of all the reported photocatalysts, metal sulfides are considered to be good candidates for photocatalytic hydrogen production due to their strong absorption in the visible region. Indium zinc sulfide is a ternary chalcogenide with a suitable band gap (2.34-2.48 eV) corresponding to visible light absorption. Related research shows that the indium zinc sulfide has degradation activity under the irradiation of visible light and shows higher chemical stability. However, the separation efficiency and the migration ability of the photo-excited charge carriers are poor, resulting in a lower photocatalytic degradation activity of pure indium zinc sulfide.
In recent years, graphene and other two-dimensional materials have been widely used in the fields of energy storage, photoelectricity, sensing, catalysis and the like due to their special structures and excellent physicochemical properties. The graphite-like two-dimensional layered material has the characteristics of large specific surface area, many active sites, atomic layer thickness and the like, and becomes a research hotspot in nearly ten years. In 2011, Gogotsi and Barsum find a novel two-dimensional layered material MXenes, and add a plurality of new members to the two-dimensional layered material. Compared with typical two-dimensional materials such as graphene and molybdenum sulfide, MXenes not only has the characteristics of large specific surface area, more active sites, atomic layer thickness and the like, but also has the advantages of good hydrophilicity, adjustable chemical composition and the like. The theory predicts that the material has high elastic modulus and high carrier mobility, and has good application prospect in the aspects of conductive materials, function-enhanced composite materials and the like.
The preparation method comprises the steps of firstly preparing titanium carbide by a solution method, then obtaining indium zinc sulfide nano particles by a hot injection method, and then obtaining the titanium carbide/indium zinc sulfide composite visible light catalyst by ultrasonic stirring, wherein the catalyst can be applied to a photocatalytic degradation technology.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: based on the problems, the invention provides a preparation method for preparing a high-efficiency titanium carbide/indium zinc sulfide composite visible-light-driven photocatalyst.
The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of a titanium carbide/indium zinc sulfide composite visible light catalyst comprises the following steps:
(1) preparing titanium carbide: mixing titanium aluminum carbide (Ti)3AlC2) Adding into 40% hydrofluoric acid, and etching in 50 deg.C oil bath for 24 h to obtain accordion-shaped aluminum carbide (Ti)3C2）。
(2) Preparing a titanium carbide/indium zinc sulfide composite visible light photocatalyst: firstly, mixing 10 mmol of sulfur powder and 10 mL of oleic acid, carrying out oil bath at 115 ℃ for 20 min, heating to 150 ℃, and continuing to carry out oil bath for 10-20 min to obtain a 1mol/L OA-S solution. And then adding zinc acetate, indium trichloride, oleylamine and tri-n-zinc-based phosphine oxide into a three-mouth round-bottom flask, carrying out oil bath at 110 ℃ for 20 min under the protection of nitrogen, continuously heating to 200 ℃, quickly injecting an OA-S solution after 5 min, immediately injecting ethanol after 30 min, cooling to room temperature, centrifuging at 9000 r/min for 2 min to obtain indium zinc sulfide nano particles, then dissolving the indium zinc sulfide nano particles into trichloromethane, adding a certain amount of titanium carbide powder, carrying out ultrasonic treatment for 30 min, adding ethanol, continuing ultrasonic treatment for 2 h, stirring at normal temperature for 12 h, and centrifuging again to obtain the titanium carbide/indium zinc sulfide composite visible light catalyst.
Further, 30 mL of hydrofluoric acid is required to etch each gram of titanium aluminum carbide in the step (1).
Further, 45, 60, 75 and 90 mg of titanium carbide is respectively added into 1mmol of indium zinc sulfide solution in the step (2), and the molar ratio of zinc acetate, indium trichloride and sulfur powder is 1:2: 4.
The invention has the beneficial effects that: the preparation method is simple and easy to operate, the preparation conditions are easy to control, and the prepared titanium carbide/indium zinc sulfide composite visible-light-driven photocatalyst is a green pollution-free high-performance catalyst, has high catalysis efficiency and has a certain application prospect.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is an X-ray diffraction pattern of a titanium carbide/indium zinc sulfide composite visible-light-induced photocatalyst prepared in examples 1 to 3 of the present invention;
FIG. 2 is a scanning electron microscope image of the titanium carbide/indium zinc sulfide composite visible light photocatalyst prepared in example 3 of the present invention;
FIG. 3 is a graph showing the degradation effect of the titanium carbide/indium zinc sulfide composite visible-light-induced photocatalyst prepared in examples 1 to 3 of the present invention.
Detailed Description
The invention will now be further illustrated by reference to specific examples, which are intended to be illustrative of the invention and are not intended to be a further limitation of the invention.
Example 1
(1) Preparing titanium carbide: adding 1 g of titanium aluminum carbide into 30 mL of 40% hydrofluoric acid, and etching the mixture in an oil bath at 50 ℃ for 24 h to obtain accordion-shaped aluminum carbide (Ti)3C2）。
(2) Preparing a titanium carbide/indium zinc sulfide composite visible light photocatalyst: firstly, mixing 10 mmol of sulfur powder and 10 mL of oleic acid, carrying out oil bath at 115 ℃ for 20 min, heating to 150 ℃, and continuing to carry out oil bath for 10-20 min to obtain a 1mol/L OA-S solution. And then adding 1mmol of zinc acetate, 2 mmol of indium trichloride, 10 mL of oleylamine and 4 g of tri-n-zinc-based phosphine oxide into a three-mouth round-bottom flask, carrying out oil bath at 110 ℃ for 20 min under the protection of nitrogen, continuously heating to 200 ℃, quickly injecting 4 mL of OA-S solution after 5 min, immediately injecting 20-30 mL of ethanol after 30 min, cooling to room temperature, centrifuging for 2 min at 9000 r/min to obtain indium zinc sulfide nanoparticles, dissolving the indium zinc sulfide nanoparticles into trichloromethane, adding 60 mg of titanium carbide powder, carrying out ultrasound for 30 min, adding 50 mL of ethanol, continuing ultrasound for 2 h, stirring at normal temperature for 12 h, and centrifuging again to obtain the titanium carbide/indium zinc sulfide composite visible light catalyst.
Example 2
(1) Preparing titanium carbide: adding 1 g of titanium aluminum carbide into 30 mL of 40% hydrofluoric acid, and etching the mixture in an oil bath at 50 ℃ for 24 h to obtain accordion-shaped aluminum carbide (Ti)3C2）。
(2) Preparing a titanium carbide/indium zinc sulfide composite visible light photocatalyst: firstly, mixing 10 mmol of sulfur powder and 10 mL of oleic acid, carrying out oil bath at 115 ℃ for 20 min, heating to 150 ℃, and continuing to carry out oil bath for 10-20 min to obtain a 1mol/L OA-S solution. And then adding 1mmol of zinc acetate, 2 mmol of indium trichloride, 10 mL of oleylamine and 4 g of tri-n-zinc-based phosphine oxide into a three-mouth round-bottom flask, carrying out oil bath at 110 ℃ for 20 min under the protection of nitrogen, continuously heating to 200 ℃, quickly injecting 4 mL of OA-S solution after 5 min, immediately injecting 20-30 mL of ethanol after 30 min, cooling to room temperature, centrifuging for 2 min at 9000 r/min to obtain indium zinc sulfide nanoparticles, dissolving the indium zinc sulfide nanoparticles into trichloromethane, adding 75 mg of titanium carbide powder, carrying out ultrasound for 30 min, adding 50 mL of ethanol, continuing ultrasound for 2 h, stirring at normal temperature for 12 h, and centrifuging again to obtain the titanium carbide/indium zinc sulfide composite visible light catalyst.
Example 3
(1) Preparing titanium carbide: adding 1 g of titanium aluminum carbide into 30 mL of 40% hydrofluoric acid, and etching the mixture in an oil bath at 50 ℃ for 24 h to obtain accordion-shaped aluminum carbide (Ti)3C2）。
(2) Preparing a titanium carbide/indium zinc sulfide composite visible light photocatalyst: firstly, mixing 10 mmol of sulfur powder and 10 mL of oleic acid, carrying out oil bath at 115 ℃ for 20 min, heating to 150 ℃, and continuing to carry out oil bath for 10-20 min to obtain a 1mol/L OA-S solution. And then adding 1mmol of zinc acetate, 2 mmol of indium trichloride, 10 mL of oleylamine and 4 g of tri-n-zinc-based phosphine oxide into a three-mouth round-bottom flask, carrying out oil bath at 110 ℃ for 20 min under the protection of nitrogen, continuously heating to 200 ℃, quickly injecting 4 mL of OA-S solution after 5 min, immediately injecting 20-30 mL of ethanol after 30 min, cooling to room temperature, centrifuging for 2 min at 9000 r/min to obtain indium zinc sulfide nanoparticles, dissolving the indium zinc sulfide nanoparticles into trichloromethane, adding 90 mg of titanium carbide powder, carrying out ultrasound for 30 min, adding 50 mL of ethanol, continuing ultrasound for 2 h, stirring at normal temperature for 12 h, and centrifuging again to obtain the titanium carbide/indium zinc sulfide composite visible light catalyst.
Performance determination of titanium carbide/indium zinc sulfide composite visible-light-induced photocatalyst
The crystalline phase structure of the titanium carbide/indium zinc sulfide composite visible light catalyst prepared in examples 1 to 3 was analyzed by a japanese physical D/max2500PC autorotation X-ray diffractometer, where the X-ray was a Cu target K α (λ =1.54056 a), the voltage was 40kV, the current was 100mA, the step size was 0.02 °, and the scanning range was 10 ° to 80 °. The X-ray diffraction pattern is shown in figure 1, and the peak shapes at the positions of (003), (011), (110) and the like fully indicate the successful synthesis of the indium zinc sulfide. The well-matched strong diffraction peaks of the composite material demonstrate that the sample is a two-phase structure free of other impurities and has high crystallinity.
The morphology of the titanium carbide/indium zinc sulfide composite visible light photocatalyst prepared in example 2 was observed by using a japanese JSM-6360A scanning electron microscope, and a scanning electron microscope image is shown in fig. 2, from which it can be seen that indium zinc sulfide nanoparticles are uniformly supported in the accordion-like titanium carbide sheet layer structure in the composite visible light photocatalyst prepared in the present embodiment.
Research on photocatalytic performance and potential applicability of titanium carbide/indium zinc sulfide composite visible-light-induced photocatalyst
The titanium carbide/zinc indium sulfide and pure zinc indium sulfide prepared in examples 1-3 were used as photocatalysts to degrade malachite green dye. 10 mg of photocatalyst was added to 30 mg/L of malachite green aqueous solution. And (3) performing photocatalytic degradation reaction by using a 1000W xenon lamp with a 420 nm filter as a light source. Dark reaction time is 1 h, after illumination, samples are taken for 6 times in sequence of 20 min, 40 min, 60 min, 80 min, 100 min and 120 min, high-speed centrifugation is carried out under the condition of 10000 rpm, and the concentration change of supernatant liquid is measured by an ultraviolet visible spectrophotometer. As can be seen from the figure 3, the degradation rate of the titanium carbide/indium zinc sulfide-90 degraded malachite green within 120 min can reach 98%, and the prepared titanium carbide/indium zinc sulfide composite photocatalyst has high photocatalytic activity.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A preparation method of a titanium carbide/indium zinc sulfide composite visible-light-driven photocatalyst for photocatalytic degradation of malachite green is characterized by comprising the following steps: the method comprises the following steps: (1) preparation of titanium carbide: titanium aluminum carbide Ti3AlC2Adding the mixture into hydrofluoric acid, and etching in an oil bath to obtain accordion-shaped titanium carbide Ti3C2；
(2) Preparing a titanium carbide/indium zinc sulfide composite visible light photocatalyst: firstly, mixing sulfur powder and oleic acid, and heating in an oil bath to prepare an OA-S solution;
(3) adding zinc acetate, indium trichloride, oleylamine and tri-n-zinc-based phosphine oxide into a round-bottom flask, heating to 200 ℃ under the protection of nitrogen, quickly injecting an OA-S solution, immediately injecting ethanol after a period of time, cooling to room temperature, centrifuging to obtain indium zinc sulfide nano particles, dissolving the indium zinc sulfide nano particles into trichloromethane, adding a certain amount of titanium carbide powder, performing ultrasonic treatment, adding ethanol, continuing to perform ultrasonic treatment, stirring at normal temperature for a period of time, and centrifuging again to obtain the titanium carbide/indium zinc sulfide composite visible light catalyst;
wherein, 60 mg, 75 mg and 90 mg of titanium carbide are respectively added into 1mmol of indium zinc sulfide solution, and the molar ratio of zinc acetate, indium trichloride and sulfur powder is 1:2: 4.
2. The preparation method of the titanium carbide/indium zinc sulfide composite visible-light-driven photocatalyst for photocatalytic degradation of malachite green as claimed in claim 1, wherein the preparation method comprises the following steps: and (2) in the step (1), etching by using 30 mL of 40% hydrofluoric acid per gram of titanium aluminum carbide.
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| CN110124706B true CN110124706B (en) | 2022-03-25 |
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| CN110624595A (en) * | 2019-10-15 | 2019-12-31 | 中国计量大学 | Calcium-indium-sulfur/titanium carbide photocatalytic composite material and preparation method thereof |
| CN112246263B (en) * | 2020-09-21 | 2022-04-22 | 华南理工大学 | Non-metal surface plasma catalyst and preparation method and application thereof |
| CN112827503A (en) * | 2020-12-01 | 2021-05-25 | 南京工业大学 | 2D/2D indium zinc sulfide/MXene photocatalytic heterojunction hydrogen production material and preparation method thereof |
| CN112844412B (en) * | 2021-01-13 | 2022-10-21 | 华南师范大学 | Sulfur indium zinc-MXene quantum dot composite photocatalyst and preparation method and application thereof |
| CN113070074A (en) * | 2021-03-31 | 2021-07-06 | 青岛大学 | Ti3C2-MXene/ZnIn2S4Preparation method and application of composite photocatalyst |
| CN113351227B (en) * | 2021-06-24 | 2022-02-18 | 中南民族大学 | Ultra-thin Ti3C2nanosheet/ZnIn2S4Preparation method of flower ball composite photocatalyst |
| CN115888780B (en) * | 2022-09-30 | 2024-04-26 | 扬州大学 | CuFeS2MXene composite nano material and preparation method thereof |
| CN116273060A (en) * | 2023-03-01 | 2023-06-23 | 常州大学 | Preparation method and application of zinc cadmium sulfide and titanium carbide composite photocatalyst |
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