Journal
CATALYSIS COMMUNICATIONS
Volume 26, Issue -, Pages 88-92Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2012.04.021
Keywords
Photocatalytic; Bi5O7I; Upconversion; Visible light
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Funding
- National Natural Science Foundation of China [50902144, 50972155]
- Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures [SKL 200904]
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As upconversion agents, Er3+, Yb3+ were doped into Bi5O7I photocatalyst to improve its photocatalytic activity. Rhodamine B (RhB) and phenol were selected as model pollutants to evaluate the photocatalytic activity of the Bi5O7I under visible light irradiation (lambda>420 nm) and simulated solar light irradiation (lambda>290 nm). respectively. It was found that the photocatalytic activity of the Er3+:Yb3+ doped Bi5O7I was much higher than that of pure Bi5O7I and corresponding mechanism was discussed. (C) 2012 Elsevier B.V. All rights reserved.
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