Visible-light-driven Ag/Bi 3 O 4 Cl nanocomposite photocatalyst with enhanced photocatalytic activity for degradation of tetracycline

Enhui Jiang, Xiaoteng Liu, Huinan Che, Chunbo Liu, Hongjun Dong, Guangbo Che*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)
9 Downloads (Pure)

Abstract

In this study, a novel Ag/Bi 3 O 4 Cl photocatalyst has been synthesized by a facile photodeposition process. Its photocatalytic performance was evaluated from the degradation of tetracycline (TC) under visible light irradiation (λ > 420 nm). The 1.0 wt% Ag/Bi 3 O 4 Cl photocatalyst could significantly enhance the degradation of TC compared with pure Bi 3 O 4 Cl, with the degradation level reaching 94.2% in 120 minutes. The enhancement of photocatalytic activity could be attributed to the synergetic effect of the photogenerated electrons (e ) of Bi 3 O 4 Cl and the surface plasmon resonance (SPR) caused by Ag nanoparticles, which could improve the absorption capacity of visible light and facilitate the separation of photogenerated electron-hole pairs. In addition, electron spin resonance (ESR) analysis and trapping experiments demonstrated that the superoxide radicals (O 2− ), hydroxyl radicals (OH) and holes (h + ) played crucial roles in the photocatalytic process of TC degradation. The present work provides a promising approach for the development of highly efficient photocatalysts to address current environmental pollution, energy issues and other related areas.

Original languageEnglish
Pages (from-to)37200-37207
Number of pages8
JournalRSC Advances
Volume8
Issue number65
DOIs
Publication statusPublished - 5 Nov 2018
Externally publishedYes

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