Reducing carbon nitride photocatalyst, preparation method and application thereof

A photocatalyst and catalyst technology, applied in the field of photocatalysis, can solve the problems of shifting up the valence band and shifting down the conduction band, etc., to achieve the effects of reducing the bandgap width, improving the oxidation ability, and improving the separation
CN110961129AActive Publication Date: 2020-04-07GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2020-04-07

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Abstract

Belonging to the technical field of photocatalysis, the invention discloses a reducing carbon nitride photocatalyst, a preparation method and application thereof. The photocatalyst is prepared by thesteps of: heating melamine to 520-550DEG C, performing roasting, and conducting grinding to obtain g-C3N4 powder; mixing NaBH4 with g-C3N4 powder, and then performing heating to 570-600DEG C in a protective atmosphere; and performing cooling, then cleaning the product with deionized water and ethanol, and conducting drying. The reducing carbon nitride catalyst does not contain metal, and has the advantages of environmental protection, stability, low cost and the like. According to the invention, reducing carbon nitride is applied to photocatalytic degradation of diclofenac sodium for the firsttime, also shows excellent photocatalytic performance, and has good stability.
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Description

technical field

[0001] The invention belongs to the technical field of photocatalysis, and more specifically relates to a reducing carbon nitride photocatalyst and its preparation method and application. Background technique

[0002] In recent years, pharmaceutical and personal care products (Pharmaceutical and Personal Care Products, PPCPs) are emerging pollutants, including various antibiotics, synthetic musk, painkillers, antihypertensive drugs, contraceptives, hypnotics, weight loss drugs, Hairspray, hair dye and fungicide, etc., have received extensive attention. PPCPs are persistent, bioaccumulative, and difficult to effectively degrade through conventional biological treatment, making them frequently detected in ambient aquatic environments. Residual PPCPs pollutants pose a potential threat to water quality and the overall health of the ecosystem. Therefore, the research and development of efficient treatment methods for PPCPs is of great significance for ensuring w...

Claims

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