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Preparation method of molybdenum disulfide/titanium dioxide composite material with nano thorn hierarchical structure

A molybdenum disulfide, titanium dioxide technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problem of low photocatalytic activity, and achieve the effect of high photocatalytic activity and good stability

Inactive Publication Date: 2013-10-23
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problem of low photocatalytic activity of the existing single titanium dioxide photocatalyst, and provides a method for preparing a molybdenum disulfide / titanium dioxide nanothorn hierarchical structure composite material

Method used

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  • Preparation method of molybdenum disulfide/titanium dioxide composite material with nano thorn hierarchical structure
  • Preparation method of molybdenum disulfide/titanium dioxide composite material with nano thorn hierarchical structure
  • Preparation method of molybdenum disulfide/titanium dioxide composite material with nano thorn hierarchical structure

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specific Embodiment approach 1

[0014] Specific Embodiment 1: In this embodiment, a method for preparing a molybdenum disulfide / titanium dioxide nanothorn hierarchical structure composite material is completed according to the following steps:

[0015] 1. Stripping of flaky molybdenum disulfide: put the flaky molybdenum disulfide into the mixed solution A at room temperature, ultrasonically treat, then centrifuge, take the upper layer, and then dry at room temperature to obtain molybdenum disulfide; wherein the flaky molybdenum disulfide The mass volume ratio of molybdenum to the mixed solution A is 1g:400mL, and the mixed solution A is a mixture of methanol, methanol and absolute ethanol or a mixture of alcohol and deionized water;

[0016] 2. Then add the obtained molybdenum disulfide into solution B and stir, then put it into a polytetrafluoro-substrated reaction kettle and heat it to 170-190°C, react for 10-24 hours, then cool down to room temperature, centrifuge, and collect the precipitate , and then w...

specific Embodiment approach 2

[0021] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the volume ratio of methanol and absolute ethanol in the mixture of methanol and absolute ethanol described in step 1 is 1:19. Others are the same as the first embodiment.

specific Embodiment approach 3

[0022] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the volume ratio of alcohol to deionized water in the mixture of alcohol and deionized water described in step 1 is (0.3-0.6):1, where the alcohol It is a mixture of methanol and absolute ethanol in any ratio. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method of a molybdenum disulfide / titanium dioxide composite material with a nano thorn hierarchical structure, relates to the preparation method of the molybdenum disulfide / titanium dioxide composite material with the nano thorn hierarchical structure, and aims at solving the problem of low photocatalytic activity of traditional single titanium dioxide photocatalyst. The method comprises concrete steps of: 1, stripping flaky molybdenum disulfide; 2, preparing a dry product; 3, heating and burning the dry product under protection of an inert atmosphere, and then cooling to room temperature, so as to obtain the molybdenum disulfide / titanium dioxide composite material with the nano thorn hierarchical structure. The molybdenum disulfide / titanium dioxide composite material with the nano thorn hierarchical structure prepared by the method has good stability, and high photocatalytic activity, and is suitable for being used as a photocatalytic decomposed aquatic hydrogen catalyst and a dye-sensitized solar cell electrode material. The preparation method is applied to the field of a chemical industry.

Description

technical field [0001] The invention relates to a preparation method of a molybdenum disulfide / titanium dioxide nano-thorn hierarchical structure composite material. Background technique [0002] With the rapid development of the world economy, it has also brought about a worldwide energy crisis and environmental pollution, which has greatly damaged the ecological environment of the earth. Therefore, to solve the energy crisis and environmental problems so as to realize the sustainable development of human beings has become a very challenging issue in the 21st century. 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. TiO 2 It has attracted much attention because of its high catalytic activity, good stability, low price and non-toxicity. In addition to its applications in water and air purification, TiO 2 In sterilization, photolysis of water, nitrogen fixati...

Claims

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Application Information

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IPC IPC(8): B01J27/051B01J35/02C01B3/04H01G9/042
CPCY02E60/364Y02E60/36
Inventor 陈亚杰付宏刚田国辉
Owner HEILONGJIANG UNIV
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