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 language | English |
---|---|
Pages (from-to) | 37200-37207 |
Number of pages | 8 |
Journal | RSC Advances |
Volume | 8 |
Issue number | 65 |
DOIs | |
Publication status | Published - 5 Nov 2018 |
Externally published | Yes |