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Preparation method of CdS nanobelt for producing H2O2

A nanobelt and dihydration technology, applied in the field of photocatalysis, can solve the problems of low efficiency, few active sites, and low utilization rate of visible light, etc., and achieve the effect of good repeatability, simple operation, and optimized energy band structure

Pending Publication Date: 2021-11-23
JIANGSU UNIV
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Problems solved by technology

Utilizing the band structure change caused by alkalized CdS nanobelts, the existing photocatalysts have low utilization rate of visible light, few exposed active sites, and H production. 2 o 2 low efficiency

Method used

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  • Preparation method of CdS nanobelt for producing H2O2
  • Preparation method of CdS nanobelt for producing H2O2
  • Preparation method of CdS nanobelt for producing H2O2

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Embodiment 1

[0020] Example 1: Efficient production of H in the pure water system of the present invention 2 o 2 The preparation method of the CdS nanoribbon specifically comprises the following steps:

[0021] Step 1: Put 2.66g of cadmium acetate dihydrate and 0.95g of thiourea into a beaker filled with 60mL of ethylenediamine, and disperse with magnetic stirring at room temperature for 60 minutes to obtain a mixed solution;

[0022] Step 2: Transfer the obtained mixed solution to a 100mL hydrothermal reaction kettle, put it in a constant temperature oven at 180°C for 24 hours, then wait for the reaction kettle to cool down to room temperature naturally, wash the obtained solid three times with water and ethanol respectively, and put it in the oven After drying, the CdS nanobelt can be obtained.

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Abstract

The invention relates to the technical field of photocatalysis, in particular to a preparation method of a CdS nanobelt for producing H2O2. The uniform CdS nanobelt is directly obtained by a solvothermal method of an alkaline organic solvent. By utilizing the energy band structure change caused by the alkalized CdS nanobelt, the problems of low visible light utilization rate, few exposed active sites, low H2O2 production efficiency and the like of the existing photocatalyst are solved.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, in particular to a 2 o 2 Preparation method of CdS nanobelts. Background technique [0002] Hydrogen peroxide (H 2 o 2 ) is a common, useful, and environmentally friendly organic synthesis reagent, widely used in biological processes, environmental remediation, and even more widely in the chemical industry. While reagent grade and industrial grade H 2 o 2 It is mainly synthesized by complex anthraquinone process. The process involves multi-step hydrogenation and oxidation reactions that consume enormous amounts of energy, and the resulting organic by-products are often harmful to the environment. Therefore, the development of an economical, efficient and environmentally friendly H 2 o 2 Production technology is still what we urgently need. As a promising green technology, photocatalytic technology has great application potential in the removal of organic pollutants, hydrogen prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04B01J37/10C01B15/027
CPCB01J27/04B01J37/10C01B15/027B01J35/23B01J35/39
Inventor 许晖孙培培莫曌袁俊杰宋艳华
Owner JIANGSU UNIV
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