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|Title:||Solar photocatalytic degradation of Acid Black 1 with ZnO<b></b>|
|Authors:||B Krishnakumar, M Swaminathan|
|Abstract:||The degradation of an azo dye, Acid Black 1 (AB 1) with ZnO as photocatalyst using natural solar light in aqueous solution has been investigated under different conditions. The degradation is more with solar/ZnO process than with solar/TiO<sub>2</sub>-P25 process at <i>p</i>H 9. The influence of operational parameters such as the amount of photocatalyst, dye concentration and initial <i style="">p</i>H on photodegradation by ZnO has been analyzed. The degradation of AB 1 follows pseudo-first order kinetics according to the Langmuir-Hinshelwood model. The intermediates formed during the photodegradation have been identified by GC-MS analysis. The mineralization of AB 1 has been confirmed by cyclic voltammetric and COD measurements.|
|Appears in Collections:||IJC-A Vol.49A(08) [August 2010]|
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