A kind of graphite phase nitrogen carbide/cadmium sulfide photocatalytic nanocomposite material with burr spherical structure and its preparation method and application

Abstract

The invention discloses a method for preparing a graphite phase nitrogen carbide / cadmium sulfide photocatalytic nanocomposite material with a burr spherical structure. The method comprises the following steps: S1: urea obtains graphite phase nitrogen carbide by thermal condensation; S2: converts the mass The graphite phase nitrogen carbide and cadmium sulfide precursors with a percentage of 0-4wt% are added to an appropriate amount of ethylene glycol, stirred and mixed, and ultrasonically dispersed to obtain a precursor reaction solution; S3: the precursor reaction solution is heated by microwave assisted heating , rapid synthesis of graphitic nitrogen carbide / cadmium sulfide photocatalytic nanocomposites with burr spherical structure. The prepared graphite-phase nitrogen carbide / cadmium sulfide photocatalytic nanocomposite material with burr spherical structure has the advantages of high-efficiency hydrogen production, low cost, easy availability, and environmental friendliness, and has great potential in the industrial field of hydrogen production by photolysis of water.

Description

A burr spherical structure of graphitic nitrogen carbide / cadmium sulfide photocatalytic nanocomposite Materials and preparation methods and uses thereof technical field The invention belongs to the field of photocatalytic nanomaterials, specifically refers to a kind of graphite phase nitrogen carbide of burr spherical structure / Cadmium sulfide photocatalytic nanocomposite material and preparation method and use thereof, the photocatalytic nanocomposite material can be used for photocatalytic water hydrogen production. Background technique The use of solar photocatalytic water splitting to generate clean hydrogen energy is considered to solve the global energy dilemma and environmental problems. one of the most promising strategies. To date, many semiconductors have been developed as potential candidates for this target photocatalytic reaction Candidates such as metal oxides, metal sulfides and metal oxynitrides, etc. However, most semiconductors such as TiO 2 ...

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Problems solved by technology

[0012] However, none of the materials prepared in the above methods have achieved a catalyst morphology with a burr spherical structure, which makes their specific surface area insufficient, which in turn affects the reaction efficiency with water photolysis catalysis, so it is necessary to improve

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