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Preparation method of titanium carbide/zinc indium sulfide composite visible light photocatalyst

A technology of indium zinc sulfide and titanium carbide, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of low migration ability, low photocatalytic degradation activity of pure indium zinc sulfide, and photoexcited charge Carrier separation efficiency is poor and other problems, to achieve the effect of easy preparation conditions, easy operation, and simple preparation method

Active Publication Date: 2019-08-16
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the poor separation efficiency and low mobility of photoexcited charge carriers lead to low photocatalytic degradation activity of pure InZnS

Method used

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  • Preparation method of titanium carbide/zinc indium sulfide composite visible light photocatalyst
  • Preparation method of titanium carbide/zinc indium sulfide composite visible light photocatalyst
  • Preparation method of titanium carbide/zinc indium sulfide composite visible light photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Preparation of titanium carbide: 1 g of titanium aluminum carbide was added to 30 mL of 40% hydrofluoric acid, and etched in an oil bath at 50°C for 24 h to obtain an accordion-shaped aluminum carbide (Ti 3 C 2 ).

[0019] (2) Preparation of titanium carbide / indium zinc sulfide composite visible light catalyst: firstly, mix 10 mmol sulfur powder with 10 mL oleic acid, put in an oil bath at 115 °C for 20 min, then raise the temperature to 150 °C, and continue the oil bath for 10-20 min, Prepare 1mol / L OA-S solution. Then, add 1 mmol 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-neck round bottom flask, and heat up to 200 °C in an oil bath at 110 °C for 20 min under nitrogen protection. ℃, 4 mL of OA-S solution was quickly injected after 5 min, 20-30 mL of ethanol was injected immediately after 30 min, cooled to room temperature, and centrifuged at 9000 r / min for 2 min to obtain indium zin...

Embodiment 2

[0021] (1) Preparation of titanium carbide: 1 g of titanium aluminum carbide was added to 30 mL of 40% hydrofluoric acid, and etched in an oil bath at 50°C for 24 h to obtain an accordion-shaped aluminum carbide (Ti 3 C 2 ).

[0022] (2) Preparation of titanium carbide / indium zinc sulfide composite visible light catalyst: firstly, mix 10 mmol sulfur powder with 10 mL oleic acid, put in an oil bath at 115 °C for 20 min, then raise the temperature to 150 °C, and continue the oil bath for 10-20 min, Prepare 1mol / L OA-S solution. Then, add 1 mmol 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-neck round bottom flask, and heat up to 200 °C in an oil bath at 110 °C for 20 min under nitrogen protection. ℃, 4 mL of OA-S solution was quickly injected after 5 min, 20-30 mL of ethanol was injected immediately after 30 min, cooled to room temperature, and centrifuged at 9000 r / min for 2 min to obtain indium zin...

Embodiment 3

[0024] (1) Preparation of titanium carbide: 1 g of titanium aluminum carbide was added to 30 mL of 40% hydrofluoric acid, and etched in an oil bath at 50°C for 24 h to obtain an accordion-shaped aluminum carbide (Ti 3 C 2 ).

[0025] (2) Preparation of titanium carbide / indium zinc sulfide composite visible light catalyst: firstly, mix 10 mmol sulfur powder with 10 mL oleic acid, put in an oil bath at 115 °C for 20 min, then raise the temperature to 150 °C, and continue the oil bath for 10-20 min, Prepare 1mol / L OA-S solution. Then, add 1 mmol 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-neck round bottom flask, and heat up to 200 °C in an oil bath at 110 °C for 20 min under nitrogen protection. ℃, 4 mL of OA-S solution was quickly injected after 5 min, 20-30 mL of ethanol was injected immediately after 30 min, cooled to room temperature, and centrifuged at 9000 r / min for 2 min to obtain indium zin...

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Abstract

The invention relates to a preparation method of a titanium carbide / zinc indium sulfide composite visible light photocatalyst. The preparation method comprises the following steps: preparation of a novel two-dimensional layered material titanium carbide, and preparation of the titanium carbide / zinc indium sulfide composite photocatalyst. The preparation method has the advantages of simplicity, easiness in operation, and easiness in control of the preparation conditions; and the prepared titanium carbide / zinc indium sulfide composite visible light photocatalyst is a green and pollution-free high-performance catalyst, has a high photocatalytic degradation efficiency, and has a certain application prospect.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic nanomaterials, and relates to a preparation method of a titanium carbide / indium zinc sulfide composite visible light catalyst. Background technique [0002] Due to the global environmental pollution problem, the technology of using solar energy to degrade dyes in wastewater has received more and more attention. So far, experts and scholars have explored various semiconductor materials, including metal oxides, sulfides, oxynitrides, and metal-free semiconductors, for photocatalytic degradation. Among all the reported photocatalysts, metal sulfides are considered as 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 bandgap (2.34–2.48 eV) corresponding to visible light absorption. Related studies have shown that indium zinc sulfide has degradation activity under visible li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22C02F1/30C02F101/30
CPCB01J27/22C02F1/30C02F2305/10C02F2101/308B01J35/399B01J35/23B01J35/39
Inventor 李忠玉赵彩霞姜海伦
Owner CHANGZHOU UNIV
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