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Fabrication of Ag/Ag2MoO4 plasmonic photocatalyst with enhanced photocatalytic performance for degradation of ciprofloxacin

Abstract

Silver/silver molybdate (Ag/Ag2MoO4) composite was successfully synthesized through in situ reduction of Ag2MoO4 by NaBH4 at room temperature and characterized by various analytical techniques. The photocatalytic activity of the composite was evaluated by the degradation of colorless antibiotic agent ciprofloxacin (CIP) under visible light irradiation. The experimental results indicated that the as-fabricated Ag/Ag2MoO4 showed greatly enhanced photocatalytic performance compared with pure Ag2MoO4, which exhibited high photodegradation efficiency with 99.5% removal of CIP in 60 min and excellent stability in five consecutive cycles. The improved photocatalytic performance could be mainly attributed to the surface plasmon resonance (SPR) effect of Ag nanoparticles in the region of visible light. The active species trapping experiments and ESR analysis suggested that the •OH and h+ were the main active species for the photocatalytic degradation. Eventually, a possible photocatalytic mechanism has been proposed.

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Publication details

The article was received on 11 May 2018, accepted on 03 Jun 2018 and first published on 05 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ02327A
Citation: New J. Chem., 2018, Accepted Manuscript
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    Fabrication of Ag/Ag2MoO4 plasmonic photocatalyst with enhanced photocatalytic performance for degradation of ciprofloxacin

    J. Li, F. Liu and Y. Li, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ02327A

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