Photocatalytic decomposition on nano-TiO2: Destruction of chloroaromatic compounds

State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China.
Chemosphere (Impact Factor: 3.34). 02/2011; 82(9):1215-24. DOI: 10.1016/j.chemosphere.2010.12.034
Source: PubMed


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 TiO(2). 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.

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Available from: Shengyong Lu, Jan 10, 2014
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    • "Developing sustainable and low-energy technologies to treat water is a critical need (Augugliaro et al., 2006; Blanco-Galvez et al., 2007). Photocatalysis using titanium dioxide (TiO 2 ) and solar or artificial light has been the subject of numerous investigations in recent years as it is an attractive, low-energy, water treatment method for many organic contaminants (Blanco et al., 2009; Herrmann et al., 1998; Lu et al., 2011; Neppolian et al., 2002, 2003; Ray and Beenackers, 1998). TiO 2 is chemically inert and corrosion resistant. "
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