Fabricated Ag/Ag2S/reduced graphene oxide composite photocatalysts for enhancing visible light photocatalytic and antibacterial activity

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 57; pp. 125 - 133
• Main Authors: Huo, Pengwei, Liu, Chongyang, Wu, Dongyao, Guan, Jingru, Li, Jinze, Wang, Huiqin, Tang, Qi, Li, Xiuying, Yan, Yongsheng, Yuan, Shouqi
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.01.2018; 한국공업화학회
• Subjects: Ag2S; Antibacterial activity; Photocatalytic degradation; Reduced graphene oxide; 화학공학; Ag2S; Photocatalytic degradation; Antibacterial activity; Reduced graphene oxide; Ag
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2017.08.015

[Display omitted] •Ag/Ag2S/rGO was prepared by hydrothermal and UV-light-assisted reduction methods.•The composite photocatalyst showed excellent degradation efficiency for ciprofloxacin.•Ag/Ag2S/rGO has excellently antibacterial performance for Escherichia coli. In this work, we reported one kind of photocatalytic and antibacterial materials, Ag/Ag2S/reduced graphene oxide (rGO), which prepared by the hydrothermal and UV-light-assisted reduction methods. The Ag2S nanoparticals were well dispersed on the surface of rGO as revealed by series of characterization. The obtained Ag/Ag2S/rGO photocatalyst showed excellent photocatalytic degradation efficiency of 87.6% for ciprofloxacin (CIP) under visible light irradiation and outstanding antibacterial activity for Escherichia coli (E. coli) which reached to 97.76% in 24h. The trapping of active species showed that the hydroxyl radicals, holes and superoxide radicals played important roles in the photocatalytic degradation of CIP processes.