Journal
CATALYSIS COMMUNICATIONS
Volume 87, Issue -, Pages 57-61Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2016.09.003
Keywords
Photocatalysis; Bismuth oxyhalides; Elemental mercury removal; Fluorescent light
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Funding
- National Natural Science Foundation of China [51306046, U1404520, 51576086]
- Fundamental Research Funds for the Universities of Henan Province [NSFRF140204]
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BiOX (X = Cl, Br,I) photocatalysts were synthesized by a simple coprecipitation method and were characterized by SEM, TEM, HRTEM, XRD, TG, DRS, PL, and ESR techniques. The photocatalytic activity of Hg-0 removal and the effects SO2 and NO were investigated under fluorescent light. The Hg-0 removal performance was in the sequence ofBiOI>BiOBr>BiOCl. Compared with BiOBr, BiOI showed much excellent SO2 resistance on Hg-0 removal. In the BiOBr reaction system, h(+) and center dot O-2(-) could play key roles in Hg-0 removal, while for BiOI photocatalytic system, I-2 might be an important species for higher Hg-0 removal. (C) 2016 Elsevier B.V. All rights reserved.
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