Titanium-doped indium zinc sulfide flower-shaped microspheres as well as preparation method and application thereof

An indium zinc sulfide and titanium doping technology is applied in the field of catalysis, which can solve the problems of photocorrosion, affecting the hydrogen production rate, etc., and achieve the effects of improving photocorrosion, improving the ability of photocatalytic hydrogen production, and simple experimental equipment.

Active Publication Date: 2018-02-27
INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sulfides have photocorrosion phenomenon in the photocatalytic reaction, which in turn affects the rate of hydrogen production by photocatalyst photolysis of water.

Method used

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  • Titanium-doped indium zinc sulfide flower-shaped microspheres as well as preparation method and application thereof
  • Titanium-doped indium zinc sulfide flower-shaped microspheres as well as preparation method and application thereof
  • Titanium-doped indium zinc sulfide flower-shaped microspheres as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 1mmol of zinc chloride, 2mmol of indium chloride, and 5mmol of thioacetamide, add 80mL of deionized water and stir evenly, transfer to a polytetrafluoroethylene tank, put it into a high-pressure reactor, and put it in a blast drying oven at 80°C Thermal reaction for 12 hours; after the hydrothermal treatment, pour off the supernatant, take the orange-yellow precipitate at the bottom, wash it three times with deionized water, and then dry it in a blast drying oven at 60°C for 8 hours to obtain indium sulfide spangles with a flower-like structure shaped microspheres.

[0033] Take 10mL of titanium sulfate solution with a concentration of 0.1g / L, add 1g of indium zinc sulfide powder, and heat on a heating platform at 30°C for 3 hours while stirring; centrifuge the mixed solution, remove the lower layer of precipitate, wash it with water three times, and place it in a blast drying oven Dry at 60°C to obtain 0.1% titanium-doped indium sulfide spangle microsphere compos...

Embodiment 2

[0035] Weigh 1mmol of zinc chloride, 2mmol of indium chloride, and 5mmol of thioacetamide, add 80mL of deionized water and stir evenly, transfer to a polytetrafluoroethylene tank, put it into a high-pressure reactor, and put it in a blast drying oven at 80°C Thermal reaction for 10 hours; after the hydrothermal treatment, pour off the supernatant, take the orange-yellow precipitate at the bottom, wash it three times with deionized water, and dry it in a blast drying oven at 60°C for 8 hours to obtain indium sulfide spangles with a flower-like structure shaped microspheres.

[0036] Take 10mL of titanium sulfate solution with a concentration of 0.15g / L, add 1g of indium zinc sulfide powder, and heat it on a heating platform at 80°C for 1 hour while stirring; centrifuge the mixed solution, remove the lower layer and wash it with water for three times, then place it in a blast drying oven Dry at 60°C to obtain 0.15% titanium-doped indium sulfide spangle microsphere composite phot...

Embodiment 3

[0038] Weigh 1mmol of zinc nitrate, 2mmol of indium chloride, and 5mmol of thioacetamide, add 80mL of deionized water and stir evenly, transfer to a polytetrafluoroethylene tank, put it into a high-pressure reactor, and heat it in a blast drying oven at 80°C React for 12 hours; after the hydrothermal treatment, pour off the supernatant, take the orange-yellow precipitate at the bottom, wash it three times with deionized water, and dry it in a blast drying oven at 60°C for 10 hours to obtain a flower-like indium sulfide spangle Microspheres.

[0039] Take 10mL of titanium sulfate solution with a concentration of 0.2g / L, add 1g of indium zinc sulfide powder, and heat it on a heating platform at 150°C for 0.25 hours while stirring; centrifuge the mixed solution, remove the lower layer and wash it with water for three times, then place it in a blast drying oven Dry at 60°C to obtain 0.2% titanium-doped indium sulfide spangle microsphere composite photocatalyst.

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Abstract

The invention relate to titanium-doped indium zinc sulfide flower-shaped microspheres as well as a preparation method and application thereof. The preparation method of the titanium-doped indium zincsulfide flower-shaped microspheres comprises the following steps of: placing indium zinc sulfide flower-shaped microspheres in a titanium salt solution, and carrying out heating and stirring for 0.25-3 h at 30-150 DEG C; and then centrifuging the mixed solution, taking a lower layer precipitate, washing the precipitate, and drying the precipitate to obtain the titanium-doped indium zinc sulfide flower-shaped microspheres, wherein the mass ratio of the indium zinc sulfide flower-shaped microspheres to the titanium salt is 100:(0.01-10). According to the preparation method provided by the invention, the indium zinc sulfide flower-shaped microspheres are placed in the titanium salt solution, and titanium ions are doped in the indium zinc sulfide flower-shaped microspheres by an impregnation method, so that the photocatalytic activity of indium zinc sulfide is further improved. The titanium-doped indium zinc sulfide flower-shaped microspheres prepared by the method have the advantages of stable appearance, larger specific surface area and higher photocatalytic hydrogen production activity, and can be used for photocatalytic decomposition of water to generate hydrogen.

Description

technical field [0001] The invention relates to the technical field of catalysis, in particular to a titanium-doped indium sulfide spangle microsphere and a preparation method and application thereof. Background technique [0002] With the development of human science and technology and the growth of living standards, energy problems have gradually become the main problems facing human society. In addition to the energy crisis caused by the yearly increase in energy consumption, the greenhouse effect caused by the burning of fossil fuels also needs to be resolved urgently. For the continuation and stability of human sustainable development, it is imminent to develop a clean and environmentally friendly new energy source. Solar energy, wind energy, hydrogen energy, nuclear energy, and biological energy are all objects of research and development by scientific researchers in recent years. Among them, hydrogen energy is environmentally friendly, non-toxic, has high combustion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04B01J35/08C01B3/04
CPCB01J27/04B01J35/004B01J35/08C01B3/042Y02E60/36
Inventor 王新马歌陈志鸿苑明哲周国富
Owner INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
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