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Preparation method of molybdenum disulfide-black titanium dioxide composite visible-light-driven photocatalyst for hydrogen production

A technology of black titanium dioxide and molybdenum disulfide, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve low hydrogen production efficiency, low utilization rate of visible light, etc. problems, to achieve the effect of high hydrogen production efficiency, efficient hydrogen production capacity, and good stability

Inactive Publication Date: 2015-12-30
HEILONGJIANG UNIV
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  • Summary
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  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problems that the existing molybdenum disulfide / titanium dioxide composite visible light catalyst has low utilization rate of visible light and low hydrogen production efficiency, and provides a molybdenum disulfide / black titanium dioxide composite visible light catalyst for hydrogen production preparation method

Method used

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  • Preparation method of molybdenum disulfide-black titanium dioxide composite visible-light-driven photocatalyst for hydrogen production
  • Preparation method of molybdenum disulfide-black titanium dioxide composite visible-light-driven photocatalyst for hydrogen production
  • Preparation method of molybdenum disulfide-black titanium dioxide composite visible-light-driven photocatalyst for hydrogen production

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specific Embodiment approach 1

[0020] Specific Embodiment 1: This embodiment is a method for preparing a molybdenum disulfide / black titanium dioxide composite visible light catalyst for hydrogen production, specifically as follows:

[0021] 1. Mixing of reagents: uniformly mix tetrabutyl titanate and concentrated hydrochloric acid, then add molybdenum disulfide, then add oleic acid, and stir for 1h to 1.5h to obtain a mixed reagent; the concentrated hydrochloric acid and tetrabutyl titanate The volume ratio of the molybdenum disulfide is 1:(2~2.5); the volume ratio of the mass of the molybdenum disulfide to the tetrabutyl titanate is 1g:(8mL~9mL); the tetrabutyl titanate and the oleic acid The volume ratio is 1:(6.25~6.5);

[0022] 2. Hydrothermal reaction: put the mixed reagent obtained in step 1 in a reaction kettle, keep it warm for 2h-6h at a temperature of 160°C-200°C, cool it down to room temperature naturally, wash it with deionized water, and then Dry at 80°C for 12 hours to obtain a mixed powder; ...

specific Embodiment approach 2

[0025] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the volume ratio of concentrated hydrochloric acid and tetrabutyl titanate described in step 1 is 1:2. Others are the same as the first embodiment.

specific Embodiment approach 3

[0026] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the volume ratio of the mass of molybdenum disulfide described in step 1 to tetrabutyl titanate is 1g:8mL. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a preparation method of a molybdenum disulfide-black titanium dioxide composite visible-light-driven photocatalyst for hydrogen production, and relates to a preparation method of a visible-light-driven photocatalyst for hydrogen production. According to the preparation method, the technical problems that an existing molybdenum disulfide-titanium dioxide composite visible-light-driven photocatalyst is low in visible light utilization rate and hydrogen production efficiency are solved. The preparation method comprises the steps of 1 reagent mixing; 2 hydrothermal reaction performing; 3 thermal treating; 4 hydrogenating. The preparation method has the advantages that the prepared molybdenum disulfide-black titanium dioxide composite visible-light-driven photocatalyst for hydrogen production can efficiently produce hydrogen on the condition of visible light and can continuously produce the hydrogen under continuous six-hour radiation of the visible light and is not only high in hydrogen production efficiency but also good in stability. The preparation method is simple in preparation technology and experiment equipment, low in cost, high in benefit and capable of easily achieving commercialization.

Description

technical field [0001] The invention relates to a preparation method of a visible light catalyst for hydrogen production. Background technique [0002] With the rapid development of our country's economy and the massive utilization of resources and energy, the problem of resource shortage has become increasingly prominent. The energy crisis has become a huge challenge we are facing now! The increasing depletion of fossil energy and the serious environmental pollution caused by the excessive use of fossil energy need to be solved urgently. Therefore, we need to explore a preparation energy that can achieve sustainable development and avoid serious environmental pollution. new method. As a new type of clean energy, hydrogen energy has attracted more and more attention and attention, but its traditional preparation method has high energy consumption, high cost and low yield, which restricts its development. At present, semiconductor photocatalytic hydrogen production is an em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/28
Inventor 邢子鹏刘雪峰周卫朱琦于秀娟
Owner HEILONGJIANG UNIV
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