Enhanced sunlight-driven photocatalytic activity of graphene oxide/Bi2WO6 nanoplates by silicon modification. Issue 8 (September 2015)

• Record Type: Journal Article
• Authors: Xiao, Yi; Chen, Chuansheng; Cao, Shiyi; Qian, Guoping; Nie, Xiaobao; Yu, Weiwei
• Is Part Of: Ceramics international. Volume 41:Issue 8(2015)
• Page Start: 10087
• Page End: 10094
• Publication Date: 2015-09
• Subjects: Si modification -- Graphene oxide -- Bi2WO6 nanoplates -- Photocatalytic activity; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.04.103
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In order to improve the photocatalytic activity and reduce the cost of graphene oxide/Bi2 WO6 (GO/BWO) nanohybrids for practical application, silicon-modified graphene oxide/Bi2 WO6 (Si-GO/BWO) nanoplates were successfully prepared by a facile one-pot hydrothermal method. X-ray diffraction and BET study of the products reveal that the incorporation of Si atoms can greatly alter the microstructure of GO/BWO composite with enlarged specific surface area. The UV–vis diffuse reflectance spectra indicate that the obtained Si-GO/BWO nanoplates have enhanced absorption in both UV and visible light regions. The Si–GO/BWO nanocomposite shows increased photocatalytic activity on the degradation of high concentration RhB solution under visible light irradiation and simultaneously keeps a very high stability, due to the good textural properties. In addition, the incorporation of Si with a load of 19.3 wt% could greatly reduce the cost of BWO based photocatalyst.