NiM-LDH/g-C3N4 composite photocatalytic material and preparation method thereof

A composite photocatalysis, g-c3n4 technology, applied in chemical instruments and methods, physical/chemical process catalysts, hydrogen/syngas production, etc. Low cost, good repeatability, enhanced separation efficiency and light absorption performance
CN111167499AActive Publication Date: 2020-05-19FOSHAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FOSHAN UNIVERSITY
Publication Date
2020-05-19

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Abstract

The invention discloses a NiM-LDH / g-C3N4 composite photocatalytic material and a preparation method thereof. An alcohol-water mixed solvent is utilized, and g-C3N4, nickel salt, transition metal salt,a surfactant and a precipitator are added in the solvothermal treatment process, so that g-C3N4 can be stripped to obtain ultrathin porous g-C3N4, and meanwhile, ultrathin two-dimensional NiM hydrated hydroxide can be generated on the surface of g-C3N4 in situ. The preparation method disclosed by the invention is simple and feasible; good repeatability, safety and reliability; the NiM-LDH / g-C3N4composite photocatalytic material is an ultrathin two-dimensional composite photocatalytic material, which is simple in preparation method, relatively low in cost and high in specific surface area, greatly enhances the photo-induced electron hole separation efficiency and light absorption performance, has relatively high catalytic activity and stability for hydrogen production through visible light catalytic water splitting, and can realize efficient hydrogen production through visible light catalysis.
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Description

technical field

[0001] The invention belongs to the technical field of composite photocatalytic materials, in particular to a NiM-LDH / g-C 3 N 4 Composite photocatalytic material and preparation method thereof. Background technique

[0002] Hydrogen energy has a high combustion calorific value, and the combustion process is clean and pollution-free. It is the most promising secondary energy in the future. In recent years, fuel cell vehicles and distributed power stations based on hydrogen energy have flourished. Photolysis of water to produce hydrogen with the help of semiconductor photocatalysts converts solar energy into hydrogen energy, which is the ultimate way to achieve low-carbon, clean and sustainable energy in the entire process.

[0003] The design and development of photocatalytic materials is the key to realizing efficient hydrogen production by photolysis of water. The semiconductors used to catalyze photolysis of water to produce hydrogen mainly include TiO ...

Claims

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