Construction of hybrid Ag2CO3/AgVO3 nanowires with enhanced visible light photocatalytic activity. (May 2018)

• Record Type: Journal Article
• Authors: Yu, Xin; Gao, Lei; Huang, Jian; Li, Wei; Liu, Guangbo; Li, Zhonghua; Liu, Jiawen; Hu, PingAn
• Is Part Of: Materials research bulletin. Volume 101(2018)
• Page Start: 246
• Page End: 252
• Publication Date: 2018-05
• Subjects: Ag2CO3/AgVO3 nanowires -- Semiconductor -- Visible light photocatalysis -- RhB degradation; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2018.01.023
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: Hybrid Ag2 CO3 /AgVO3 nanowires were successfully synthesized. The as-prepared sample displayed highly enhanced photocatalytic activity. Possible photocatalytic mechanism for RhB degradation was proposed. Abstract: Visible light driven pollutant degradation by photocatalyst was one of most efficient and economical strategies for environmental application. The focus and challenge was to fabricate efficient artificial photocatalysts. In this work, hybrid Ag2 CO3 /AgVO3 nanowires were first reported to be successfully synthesized by the facile ion-exchange method. The as-prepared Ag2 CO3 /AgVO3 nanowires showed highly improved visible light photocatalytic activity for RhB degradation, and the optimized Ag2 CO3 /AgVO3 -40% photocatalyst exhibited the best photocatalytic activity, which is 3.6 times of pure Ag2 CO3 and 13.3 times of pure AgVO3 catalysts, mainly due to the formation of Ag nanoparticles and Ag2 CO3 /AgVO3 heterojunction for charge separation. The degradation of RhB solution was mainly attributed to direct hole oxidation, which was also confirmed by the active species trapping experiments. Finally, the possible visible light photocatalytic mechanism of Ag/Ag2 CO3 /AgVO3 composites for RhB degradation was proposed.