Preparation method of composite visible light catalyst graphene quantum dot/graphite-phase nitrogen carbide

The invention discloses a preparation method of a composite visible light catalyst graphene quantum dot/graphite phase nitrogen carbide, and solves the problem that the efficiency of degrading NO by g-C3N4 under visible light is relatively low. The method comprises the following steps: by taking cit...

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Hauptverfasser:	WANG TENG, YU HESHENG, HUANG XIAOXIANG, NIE QIANQIAN, JIA LIUHU, CUI YUNPEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FISHING FORESTRY HUMAN NECESSITIES HUNTING HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL PERFORMING OPERATIONS PEST REPELLANTS OR ATTRACTANTS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING TRAPPING
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Beschreibung
Zusammenfassung:	The invention discloses a preparation method of a composite visible light catalyst graphene quantum dot/graphite phase nitrogen carbide, and solves the problem that the efficiency of degrading NO by g-C3N4 under visible light is relatively low. The method comprises the following steps: by taking citric acid monohydrate CA as a raw material, pyrolyzing to prepare GQDs; then taking melamine as a raw material, and calcining to prepare CN (Carbon Nitride); and then preparing the g-C3N4 composite photocatalyst GQDs/CN containing the graphene quantum dots GQDs by using a one-step hydrothermal method. Compared with a pure g-C3N4 photocatalyst, the GQDs/CN has the advantages that the NO degradation capability is improved, and the selectivity for generating NO3 is enhanced. A new thought is provided for application of the graphene quantum dot doped semiconductor catalyst in the field of environmental purification. 本发明公开了一种复合型可见光催化剂石墨烯量子点/石墨相碳化氮的制备方法，解决了g-C3N4可见光下降解NO效率较低的问题。本发明以一水合柠檬酸CA为原料，热解制备了GQDs；再以三聚氰胺melamine