Journal
CHEMOSPHERE
Volume 82, Issue 9, Pages 1215-1224Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2010.12.034
Keywords
Photocatalytic degradation; TiO2; Polychlorinated benzenes (PCBz); Polychlorinated biphenyls (PCB); PCDD/Fs
Categories
Funding
- National Natural Science Foundation of China [50706043]
- Doctoral Program of Higher Education [20070335134]
- Project on Science and Technology of Zhejiang Province of China [2008C23090]
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Photocatalysis is applied increasingly in addressing and solving environmental and energy-related problems. Especially the TiO2-derived catalysts attract attention because of their catalytic efficiency, wide range of applications, ease in use, and low cost (it costs about 150 Yuan a kilogram in China). This review first describes the principles of photocatalytic destruction by semiconductors and then focuses on degradation rates and reaction mechanisms in a variety of photocatalytic uses of modified TiO2. Finally, these concepts are illustrated by selected examples relating to the photocatalytic degradation of organic persistent pollutants, such as polychlorinated benzenes (PCBz), biphenyls (PCB) and dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). And some approaches towards industrial application are analyzed. (C) 2011 Elsevier Ltd. All rights reserved.
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