Priya, MH and Madras, Giridhar (2006) Photocatalytic degradation of nitrobenzenes with combustion synthesized nano-TiO2. In: Journal of Photochemistry and Photobiology A: Chemistry, 178 (1). pp. 1-7.
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The photocatalytic degradation of nitrobenzene and substituted nitrobenzenes under UV exposure was investigated with combustion synthesized nano-TiO2 and commercial TiO2 catalyst, Degussa P-25. The experimental data indicated that the photodegradation kinetics was first order. The photocatalytic degradation rates were considerably higher when catalyzed with combustion synthesized TiO2 compared to that of Degussa P-25. The degradation rate coefficients followed the order: 1-chloro,14-dinitrobenzene similar or equal to 4-nitrophenot > 2-nitrophenol > 1-chloro.4-nitrobenzene > 3-niti-ophenol > 2,4-dinitrophenol > 1-chloro,2-nitrobenzene > nitrobenzene > 1,3-dinitrobenzene. Plausible mechanisms and reasons for the observation of the above order are discussed.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||Photocatalytic degradation; Nano-TiO2; Nitrobenzene; Nitrophenol; Chloronitrobenzene; Kinetic analysis; Combustion-synthesized catalyst; Degussa P-25.|
|Department/Centre:||Division of Mechanical Sciences > Chemical Engineering|
|Date Deposited:||16 Sep 2010 09:38|
|Last Modified:||19 Sep 2010 06:15|
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