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Preparation method of MoS2/ZnIn2S4 nanosheet composite material

A composite material, znin2s4 technology, applied in chemical instruments and methods, hydrogen production, chemical/physical processes, etc., can solve the problem of low photocatalytic activity of photocatalysts, and achieve the effect of controllable preparation and good stability

Inactive Publication Date: 2013-10-02
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention will solve existing single ZnIn 2 S 4 The problem of low photocatalytic activity of photocatalysts, while providing a MoS 2 / ZnIn 2 S 4 Preparation method of nanosheet composite material

Method used

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  • Preparation method of MoS2/ZnIn2S4 nanosheet composite material
  • Preparation method of MoS2/ZnIn2S4 nanosheet composite material
  • Preparation method of MoS2/ZnIn2S4 nanosheet composite material

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Experimental program
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specific Embodiment approach 1

[0018] Specific implementation mode 1: a kind of MoS in this implementation mode 2 / ZnIn 2 S 4 The preparation method of nanosheet composite material is specifically carried out according to the following steps:

[0019] 1. The layered MoS 2 Put it into absolute ethanol for ultrasonic treatment, the ultrasonic treatment time is 0.5h ~ 2h, to obtain the mixture A;

[0020] 2. Add the mixture A obtained in step 1 to the mixed solution of indium salt, sulfur source, zinc salt, polyhydric alcohol and absolute ethanol, and stir evenly to obtain mixture B;

[0021] 3. Put the mixture B obtained in step 2 into a reaction kettle with polytetrafluoroethylene as the substrate, heat it to 160°C-190°C, keep it for 8h-25h, then cool it down to room temperature naturally, and then wash it with absolute ethanol to obtain precipitate, and then dry the precipitate to obtain MoS 2 / ZnIn 2 S 4 nanosheet composites.

[0022] This embodiment implements MoS 2 / ZnIn 2 S 4 Controllable pre...

specific Embodiment approach 2

[0023] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 1, sheet MoS 2 The volume ratio of the mass of the product to absolute ethanol is 10 mg: 10 mL to 20 mL. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Specific embodiment three: the difference between this embodiment and specific embodiment one is that in step two, the indium salt is indium nitrate or indium acetate, the sulfur source is cysteine ​​hydrochloride, the zinc salt is zinc acetate or zinc nitrate, and the polyhydric alcohol is Glycerol. Others are the same as in the first embodiment.

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Abstract

The invention relates to a preparation method of a composite material, and concretely relates to a preparation method of an MoS2 / ZnIn2S4 nanosheet composite material by using sheet MoS2. The low photocatalytic activity of a single ZnIn2S4 photocatalyst at present is a problem that remains to be solved in the invention. The method comprises the following steps: 1, mixing sheet MoS2 with anhydrous ethanol; 2, adding to a mixed solution comprising an indium salt, a sulfur source, a zinc salt, a polyol and anhydrous ethanol; and 3, reacting, washing, and drying. The method realizes the controllable preparation of the MoS2 / ZnIn2S4 nanosheet composite material; and the prepared MoS2 / ZnIn2S4 nanosheet composite material has a very good stability. The method is used for preparing the MoS2 / ZnIn2S4 nanosheet composite material.

Description

technical field [0001] The invention relates to a method for preparing composite materials. Background technique [0002] At present, the energy crisis and environmental issues are extremely challenging issues facing the sustainable development of mankind. Solar energy, as a renewable energy source, has no pollution to the environment, is inexhaustible, and is the most abundant clean energy available to human beings. Photocatalysis is one of the unique properties of semiconductors, among which TiO 2 Because of its high catalytic activity, good stability, low price, non-toxic and other advantages, it has attracted much attention, but TiO 2 It is a wide bandgap semiconductor (3.2eV), which can only absorb 3-5% of the ultraviolet light in sunlight, making TiO 2 Photocatalysts have a low utilization rate of solar energy. In response to the above problems, in recent years, metal sulfides have attracted much attention due to their significant visible light response and photoca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/047C01B3/04
CPCY02E60/36
Inventor 陈亚杰付宏刚田国辉
Owner HEILONGJIANG UNIV
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