Composite catalyst GQD/Bi2WO6 for degrading NO and preparation method of composite catalyst GQD/Bi2WO6

The invention provides a composite catalyst GQD/Bi2WO6 for degrading NO and a preparation method of the composite catalyst GQD/Bi2WO6. The preparation method comprises the following steps: preparing GQDs by using citric acid monohydrate as a raw material, and preparing the Bi2WO6 composite catalyst...

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Bibliographische Detailangaben
Hauptverfasser:	HU LIZHEN, WANG TENG, YU HESHENG, NIE QIANQIAN, LIU JIAYOU, ZHANG KEFEI, CUI YUNPEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention provides a composite catalyst GQD/Bi2WO6 for degrading NO and a preparation method of the composite catalyst GQD/Bi2WO6. The preparation method comprises the following steps: preparing GQDs by using citric acid monohydrate as a raw material, and preparing the Bi2WO6 composite catalyst GQD/Bi2WO6 containing graphene quantum dots GQDs by using Bi(NO3)3.5H2O and Na2WO4.2H2O as raw materials through a one-step hydrothermal method. Compared with a pure Bi2WO6 photocatalyst, the GQD/Bi2WO6 photocatalyst has the advantages that the NO degradation capacity is improved, the degradation stability is enhanced, so that the problem of low NO degradation efficiency under visible light of Bi2WO6 is solved. 本发明提供了一种降解NO的复合催化剂GQD/BiWO及其制备方法，以一水合柠檬酸为原料制备了GQDs，再以Bi(NO)·5HO和NaWO·2HO为原料，运用一步水热法制备出含有石墨烯量子点GQDs的BiWO复合催化剂GQD/BiWO。相较于单纯的BiWO光催化剂，GQD/BiWO降解NO的能力提高且降解稳定性增强,解决了BiWO可见光下降解NO效率较低的问题。