Journal
CATALYSIS COMMUNICATIONS
Volume 15, Issue 1, Pages 99-102Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2011.08.032
Keywords
Catalytic ozonation; CeO2; Bromate formation; Bromide
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Funding
- National Water Pollution Control and Management Technology Major Projects of China [2008ZX07422-004]
- National Natural Science Foundation of China [51078143]
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Several CexZr1-xO2 mixed oxides were prepared and used as catalysts to investigate the minimization of BrO3- formation in the ozonation of a filtered water containing Br- in a batch reactor. The CexZr1-xO2 mixed oxides showed good performance in reducing BrO3- formation and removing organic compounds. The Ce(0.75)Z(0.25)O(2) oxide exhibited the highest efficiency, and 53% BrO3- was reduced after 20 min reaction. The mixed oxides accelerated the decomposition of the dissolved O-3 into OH radicals, and the competitive reaction between organic compounds and Br- with OH radicals was found to occur in the ozonation reaction. (C) 2011 Elsevier B.V. All rights reserved.
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