Nano indium sulfide photocatalyst as well as preparation method and application thereof

A technology of photocatalyst and indium sulfide, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, and preparation of organic compounds, which can solve the problems of low catalytic efficiency, achieve high photocatalytic activity, simple preparation method, and easy operation Effect

Inactive Publication Date: 2014-08-06
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
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Problems solved by technology

[0005] The object of the present invention is to aim at above-mentioned photocatalytic reduction CO 2 The problem of low catalytic efficiency provides a nano-indium sulfide photocatalyst and its preparation method and application. The phot...

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  • Nano indium sulfide photocatalyst as well as preparation method and application thereof
  • Nano indium sulfide photocatalyst as well as preparation method and application thereof
  • Nano indium sulfide photocatalyst as well as preparation method and application thereof

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Embodiment

[0021] A kind of nanometer indium sulfide photocatalyst, chemical formula is shown as In 2 S 3 , which is a 3D spherical structure and the surface of the sphere is composed of nanosheets. This morphology feature makes it have a larger specific surface area and pore volume and generate more active sites.

[0022] The preparation method of the nano-indium sulfide photocatalyst is prepared by a hydrothermal method, and the steps are as follows:

[0023] 1) Dissolve 0.2737g indium chloride, 0.4525g L-cysteine ​​and 0.056g sodium hydroxide into 55ml deionized water and stir vigorously for 15min to obtain a mixed solution;

[0024] 2) Move the above mixed solution into a hydrothermal kettle, and then place the hydrothermal kettle in an oven for constant temperature crystallization at 140°C for 16 hours. After the constant temperature reaction is completed, take out the hydrothermal kettle, and discard the supernatant after cooling to room temperature. collect sediment;

[0025] 3...

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Abstract

The invention discloses a nano indium sulfide photocatalyst with the chemical formula of In2S3. The nano indium sulfide photocatalyst is of a 3D spherical structure, and the surface of a sphere consists of nano thin sheets. The morphology features enable the catalyst to have a large specific surface area and pore volume and to generate more active sites; the nano indium sulfide photocatalyst is prepared by adopting a hydrothermal method and is applied to preparing methyl formate. The nano indium sulfide photocatalyst provided by the invention has the advantages that the preparation method of the photocatalyst is simple and is convenient to operate; the obtained photocatalyst is used for reducing carbon dioxide to prepare methyl formate, has favorable photocatalytic activity, can reduce CO2 effectively, and has the catalysis efficiency of 1500micron mol/h/g.cat by taking methyl alcohol as a solvent.

Description

technical field [0001] The invention designs the preparation technology of the photocatalyst, especially a kind of nano indium sulfide photocatalyst and its preparation method and application. Background technique [0002] With the rapid development of the world's industrial economy today, a large amount of fossil fuels have been burned, accompanied by excessive emissions into the air, which has caused a series of environmental problems, the most serious of which is the greenhouse effect. [0003] Photocatalytic reduction of CO 2 The biggest challenge is to reduce CO 2 The catalytic efficiency of the catalyst is low, which is far from the requirements for realizing the application. Therefore, the most urgent direction for a breakthrough is to improve its catalytic activity. Compared with other absorbing and storing CO 2 method, the photocatalytic reduction pathway utilizes solar energy without additional production of CO 2 , reducing CO 2 The basic requirement is that t...

Claims

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Application Information

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IPC IPC(8): B01J27/04C07C69/06C07C67/00
Inventor 尹晓红王彬马帅华
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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