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1t-mos 2 Modified zncos solid solution hollow dodecahedron nanocomposite material and its preparation method and application

A nanocomposite material, 1t-mos2 technology, applied in chemical instruments and methods, hydrogen production, chemical/physical processes, etc., can solve problems such as application limitations

Active Publication Date: 2021-03-30
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ZnS has high catalytic activity and good application prospects, it can only be excited by ultraviolet light due to its wide band gap (3.2eV), and its photogenerated electrons and holes can recombine rapidly, which Its application in the field of photocatalysis has been greatly restricted

Method used

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  • 1t-mos <sub>2</sub> Modified zncos solid solution hollow dodecahedron nanocomposite material and its preparation method and application
  • 1t-mos <sub>2</sub> Modified zncos solid solution hollow dodecahedron nanocomposite material and its preparation method and application
  • 1t-mos <sub>2</sub> Modified zncos solid solution hollow dodecahedron nanocomposite material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0039] 1T-MoS 2 The preparation method of the modified ZnCoS solid solution hollow dodecahedral nanocomposite material, the specific steps are as follows:

[0040] (1) Preparation of metal organic framework material ZnCo-MOF:

[0041] Weigh 184mg of zinc acetate (1mmol) and 177mg of cobalt acetate (1mmol) and dissolve in 50ml of methanol solution, stir at room temperature until the solute is completely dissolved to obtain a mixed solution of the two metal salts, designated as solution A. Weigh 414 mg of dimethylimidazole (8 mmol) and dissolve it in 40 ml of methanol solution, and stir at room temperature until the solute is completely dissolved to obtain B solution. At room temperature, slowly add B solution into A solution, and keep stirring, keep stirring for 20 hours and then let it stand for 6 hours. The reaction product is separated by suction filtration, then washed with distilled water for 3 times and ethanol for 3 times, and then the product is placed at 60°C Dry in ...

Embodiment 2

[0047] 1T-MoS 2 The preparation method of the modified ZnCoS solid solution hollow dodecahedral nanocomposite material, the specific steps are as follows:

[0048] (1) Preparation of metal organic framework material ZnCo-MOF:

[0049] Weigh 184mg of zinc acetate (1mmol) and 1.593g of cobalt acetate (9mmol) and dissolve in 100ml of methanol solution, stir at room temperature until the solute is completely dissolved to obtain a mixed solution of the two metal salts, which is called A solution. Weigh 4.144g of dimethylimidazole (80mmol) and dissolve it in 1600ml of methanol solution, and stir at room temperature until the solute is completely dissolved to obtain B solution. At room temperature, slowly add B solution into A solution, and keep stirring, keep stirring for 24 hours, then let it stand for 6 hours, the reaction product is separated by suction filtration, then washed 3 times with distilled water and 3 times with ethanol, and then the product is placed at 80°C Dry in a...

Embodiment 3

[0055] 1T-MoS 2 The preparation method of the modified ZnCoS solid solution hollow dodecahedral nanocomposite material, the specific steps are as follows:

[0056] (1) Preparation of metal organic framework material ZnCo-MOF:

[0057] Weigh 1.656mg of zinc acetate (9mmol) and 177mg of cobalt acetate (1mmol) and dissolve in 500ml of methanol solution, stir at room temperature until the solute is completely dissolved to obtain a mixed solution of the two metal salts, which is called A solution. Weigh 3.108g of dimethylimidazole (60mmol) and dissolve it in 1800ml of methanol solution, and stir at room temperature until the solute is completely dissolved to obtain B solution. At room temperature, slowly add B solution into A solution, and keep stirring, keep stirring for 24 hours and then let it stand for 8 hours. The reaction product is separated by suction filtration, then washed with distilled water for 3 times and ethanol for 3 times, and then the product is placed at 80°C D...

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Abstract

The invention discloses a 1T-MoS2-modified ZnCoS solid solution hollow dodecahedral nanocomposite and a preparation method and application thereof. Firstly, a ZnCo-MOF is calcined at a high temperature to obtain a derivative of the ZnCo-MOF, then the derivative and molybdate are subjected to hydrothermal vulcanization reaction to obtain a MoS2 / ZnCoS nanocomposite, and the ZnCo-MOF is a bi-metal organic framework material and is obtained through reaction of cobalt acetate, zinc acetate and dimethylimidazole. The bi-metal organic framework material with a large specific surface area and a stablethree-dimensional space structure is used as a template, the ZnCo bi-metal oxide derivative is obtained through high-temperature calcination, and finally a mixture of the derivative and the molybdateis subjected to hydrothermal vulcanization to obtain the transition metal sulfide nanomaterial with high catalytic activity. The prepared hollow polyhedral MoS2 / ZnCoS nanocomposite has high performance of producing hydrogen by water decomposition under photocatalysis.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic nanomaterials, in particular to a 1T-MoS based 2 Modified ZnCoS solid solution hollow dodecahedron nanocomposite material and its preparation method and application. Background technique [0002] In recent years, due to the increasingly prominent problems of global energy shortage and environmental pollution, the development of new green energy and technology is imminent, and the research on photocatalysis has emerged as the times require. Photocatalysis refers to the use of natural light energy as an energy source in the presence of catalysts to decompose some easily available or cheap chemicals into more efficient, clean and environmentally friendly substances or energy products. The difference between photocatalysis and other catalysis is that the energy consumption rate is low, and the catalytic reaction can be carried out only by using natural sunlight as an energy supply. At the sam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051B01J35/10C01B3/04
CPCY02E60/36
Inventor 李映伟猫清陈俊英
Owner SOUTH CHINA UNIV OF TECH
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