Bimetallic sulfide composite catalyst as well as preparation method and application thereof

A composite catalyst and bimetallic technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, non-metallic elements, etc., can solve the problems of hindering wide application, serious photocorrosion, fast composite speed, etc., and achieve low cost and preparation Simple method and high catalytic activity

Pending Publication Date: 2022-02-18
SHAOXING UNIVERSITY
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  • Application Information

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Problems solved by technology

However, the shortcomings of CdS such as fast electron-hole pair recombination and serious photocorrosion have greatly hindered its wide application.

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  • Bimetallic sulfide composite catalyst as well as preparation method and application thereof
  • Bimetallic sulfide composite catalyst as well as preparation method and application thereof
  • Bimetallic sulfide composite catalyst as well as preparation method and application thereof

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0039] The present invention is a kind of bimetallic sulfide composite catalyst and its preparation method and application. 3 COO) 2 2H 2 O and 456.7 mg of thiourea (H 2 NSNH 2 ) dissolved in 75 mL of ethylenediamine (NH 2 CH 2 CH 2 NH 2 ) solvent, and magnetically stirred to obtain a homogeneous solution, in which Cd(CH 3 COO) 2 2H 2 O concentration is 7.11mg / mL, H 2 NSNH 2 The concentration is 6.09mg / mL; then pour the homogeneous solution into a hydrothermal reaction kettle, and react at a temperature of 100°C for 8h; after the reaction is completed and naturally cooled to room temperature, the yellow product is collected by centrifugation, washed with ultrapure water and ethanol Alternately rinsed 3 times, ...

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Abstract

The invention discloses a bimetallic sulfide composite catalyst as well as a preparation method and application thereof, bimetallic sulfide MMoS4 is adopted as a cocatalyst, M is one of Ni, Co and Cu metal elements, and MMoS4 is loaded on CdS through a hydrothermal method to construct a bimetallic sulfide MMoS4 / CdS nano composite water photolysis catalyst. After a sacrificial reagent is added, the catalyst MMoS4 / CdS shows excellent performance of producing hydrogen by photolysis of water under the irradiation of visible light. The bimetallic sulfide composite catalyst disclosed by the invention is simple in preparation method, low in cost and high in photocatalytic hydrogen production performance, and can be applied to an efficient solar water photolysis hydrogen production system.

Description

technical field [0001] The invention relates to the technical field of photocatalytic hydrogen production, in particular to a bimetallic sulfide composite catalyst and its preparation method and application. Background technique [0002] The non-renewability of fossil energy and the environmental problems brought about by its extensive application prompt human society to vigorously develop clean and sustainable energy. Among them, hydrogen energy, as an environmentally friendly and high-energy-density fuel, is an ideal substitute for replacing traditional non-renewable energy in the future. However, the efficient and controllable extraction of hydrogen energy is currently facing many problems, which seriously restrict the industrialization of hydrogen energy. Photocatalytic water splitting for hydrogen production is considered to be one of the most promising hydrogen production schemes, which requires highly efficient photocatalysts to enhance the performance of the hydroge...

Claims

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Application Information

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IPC IPC(8): B01J27/051B01J35/02C01B3/04
CPCB01J27/0515C01B3/042B01J35/39B01J35/00B01J35/30Y02E60/36
Inventor汪琪李春鹤任宽宽
OwnerSHAOXING UNIVERSITY