Preparation method and application of molybdenum carbide/ zinc indium sulfide composite photocatalyst

A technology of catalyst and composite light, which is applied in the field of photocatalytic materials, can solve the problem of low photocatalytic activity of photocatalysts, and achieve the effects of simple and effective composite methods, high use value and application prospects, and efficient reactions

Inactive Publication Date: 2018-05-18
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve existing single ZnIn 2 S 4 The problem of low photocatalytic activity of photocatalysts, and a MoC / ZnIn provided 2 S 4 Preparation method and application of composite photocatalyst

Method used

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  • Preparation method and application of molybdenum carbide/ zinc indium sulfide composite photocatalyst
  • Preparation method and application of molybdenum carbide/ zinc indium sulfide composite photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] MoC / ZnIn with efficient and stable photocatalytic hydrogen production performance 2 S 4 Preparation of Composite Photocatalyst

[0023] Add 2.645 mg MoC to 50 mL containing 0.3595 g ZnSO 4 ·7H 2 O, 0.9548 g In(NO 3 ) 3 4.5H 2 O. In an aqueous solution of 0.7513 g TAA, a uniform suspension was obtained, and the obtained suspension was transferred into a 100 mL reaction kettle with a polytetrafluoroethylene substrate, placed in an oven at 200 ° C for 12 h, and then cooled naturally to room temperature, then washed several times with absolute ethanol and deionized water and dried to obtain MoC / ZnIn with MoC content of 0.5 wt%. 2 S 4 composite photocatalyst.

Embodiment 2

[0025] Add 5.29 mg MoC to 50 mL containing 0.3595 g ZnSO 4 ·7H 2 O, 0.9548 g In(NO 3 ) 3 4.5H 2 O. In an aqueous solution of 0.7513 g TAA, a uniform suspension was obtained, and the obtained suspension was transferred to a 100 mL reaction kettle with a polytetrafluoroethylene substrate, placed in an oven at 200 ° C for 12 h, and then cooled naturally to room temperature, then washed with absolute ethanol and deionized water to obtain a precipitate, and then dried the precipitate to obtain MoC / ZnIn with a MoC content of 1 wt%. 2 S 4 composite photocatalyst.

Embodiment 3

[0027] Add 10.58 mg MoC to 50 mL containing 0.3595 g ZnSO 4 ·7H 2 O, 0.9548 g In(NO 3 ) 3 4.5H 2 O. In an aqueous solution of 0.7513 g TAA, a uniform suspension was obtained, and the obtained suspension was transferred to a 100 mL reaction kettle with a polytetrafluoroethylene substrate, placed in an oven at 200 ° C for 12 h, and then cooled naturally to room temperature, then washed with absolute ethanol and deionized water to obtain a precipitate, and then dried the precipitate to obtain MoC / ZnIn with a MoC content of 2 wt%. 2 S 4 composite photocatalyst. The measured transmission electron microscope spectrum is as figure 1 As shown, the (111) plane of MoC and ZnIn can be clearly observed in the figure 2 S 4 The lattice fringes of the (222) plane.

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Abstract

The invention discloses a MoC/ZnIn2S4 composite photocatalyst and a preparation method thereof, and belongs to the technical field of a photocatalytic material. The composite photocatalyst is made bytaking two-dimensional ZnIn2S4 nanometer sheets as a main catalyst and two-dimensional MoC nanometer sheets as a cocatalyst and adopting MoC hydrothermal induction growth ZnIn2S4 method. The method isavailable in raw materials, and is simple. The prepared composite photocatalyst is good in stability and excellent in photocatalytic activity, can be used for water decomposition via visible light toproduce hydrogen, and has bright application prospects in the photocatalytic field.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic materials, in particular to a MoC / ZnIn 2 S 4 Preparation method and application of two-dimensional / two-dimensional composite photocatalyst. Background technique [0002] With the emergence of problems such as global energy shortage and environmental pollution, the development and utilization of new energy sources has become a topic of great concern in today's era. Due to the advantages of inexhaustible, clean, non-polluting, and renewable solar energy, it has potential economic benefits to use semiconductor photocatalysts to convert light energy into chemical energy. [0003] Zn 2 S 4 It is a very important semiconductor photocatalyst material with visible light response performance, and its band gap is only about 2.3 eV, which also makes it able to absorb and utilize solar energy efficiently. In the past ten years, ZnIn 2 S 4 It has been widely used in the research of photocatalytic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22B01J37/10C01B3/04
CPCB01J27/22B01J35/0013B01J35/004B01J35/006B01J37/10C01B3/042Y02E60/36
Inventor 刘平高帆冯文辉王波王凯强
Owner FUZHOU UNIV
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