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Semiconductor hydrogen production catalyst based on compounding of titanium dioxide and molybdenum sulfide, and preparation method and application thereof

A technology of titanium dioxide and molybdenum sulfide, which is applied in physical/chemical process catalysts, chemical instruments and methods, hydrogen production, etc., can solve problems such as expensive price and limited application scope, achieve low cost, simple synthesis method, and solve energy crisis. Potentially applicable effects

Inactive Publication Date: 2016-09-21
ZHENGZHOU UNIV
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Problems solved by technology

Although these noble metal-containing catalysts have high photocatalytic activity, their high price limits their application range.

Method used

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  • Semiconductor hydrogen production catalyst based on compounding of titanium dioxide and molybdenum sulfide, and preparation method and application thereof
  • Semiconductor hydrogen production catalyst based on compounding of titanium dioxide and molybdenum sulfide, and preparation method and application thereof
  • Semiconductor hydrogen production catalyst based on compounding of titanium dioxide and molybdenum sulfide, and preparation method and application thereof

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Embodiment 1

[0027] Example 1: Synthesis of a semiconductor hydrogen production catalyst based on the composite of titanium dioxide and molybdenum sulfide

[0028] (1) Dissolve 2-aminoterephthalic acid and tetrabutyl titanate in a mixed solvent of anhydrous N,N-dimethylformamide and absolute ethanol, seal them in a reaction kettle, and At 120°C for three days at a constant temperature, the natural condition dropped to room temperature to obtain a suspension. The molar ratio of 2-aminoterephthalic acid to tetrabutyl titanate is 8:1. The volume ratio of N,N-dimethylformamide and absolute ethanol is 9:1.

[0029] (2) The suspension obtained in (1) was centrifuged, washed three times with ethanol and pure water respectively, accompanied by ultrasonic treatment, and finally centrifuged to obtain a yellow solid. Dry at 75°C for 12 hours, take out and grind to obtain a yellow solid powder, which is the MOF precursor NH 2 -MIL-125.

[0030] (3) The precursor NH 2 -MIL-125 (0.08mmol), thiourea...

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Abstract

The invention discloses a semiconductor hydrogen production catalyst based on compounding of titanium dioxide and molybdenum sulfide, and a preparation method and application thereof, which relate to the technical field of nano-catalysts and photocatalysis. The preparation method of the compound catalyst comprises the following steps of adopting a ti-based MOF (NH2-MIL-125) as a precursor; dissolving the precursor, thiourea and sodium molybdate dehydrate in water in the moderate hydrothermal reaction; sealing in a reaction kettle; reacting at the constant temperature of 200 to 220 DEG C; reducing the temperature to be the room temperature under the natural condition to obtain a nano composite. The hydrogen production rate of the semiconductor hydrogen production catalyst reaches up to 10,046 mu mol h<-1>g<-1>, the semiconductor hydrogen production catalyst can be recycled through centrifugal separation, and the utilization rate of the catalyst is improved.

Description

technical field [0001] The invention relates to the technical field of nano catalysts and photocatalysis, in particular to a semiconductor hydrogen production catalyst based on the composite of titanium dioxide and molybdenum sulfide, its preparation method and its application in photocatalytic hydrogen production. Background technique [0002] Due to the development of global industrialization, the excessive use of fossil energy, the main energy source, has led to increasingly serious energy shortage crises and serious environmental pollution problems. Therefore, looking for cleaner and more environmentally friendly alternative energy sources is currently a research hotspot. As an inexhaustible and low-cost energy source, solar energy cannot be efficiently stored and directly utilized at present, so scientists are committed to converting it into other energy sources that can be used efficiently. [0003] Due to the clean and pollution-free combustion products of hydrogen e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051C01B3/04
CPCC01B3/042B01J27/051C01B2203/0277C01B2203/1088C01B2203/1205B01J35/39Y02P20/584Y02E60/36
Inventor 臧双全马冰董喜燕
Owner ZHENGZHOU UNIV
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