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Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.49A [2010] >
IJC-A Vol.49A(08) [August 2010] >
| Title: | Solar photocatalytic degradation of Acid Black 1 with ZnO |
| Authors: | B Krishnakumar, M Swaminathan |
| Keywords: | Photocatalysis
Photodegradation
Solar light
Azo dyes
Oxides |
| Issue Date: | Aug-2010 |
| Publisher: | CSIR |
| 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/TiO2-P25 process at pH 9.
The influence of operational parameters such as the amount of photocatalyst,
dye concentration and initial pH 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. |
| Page(s): | 1035-1040 |
| Source: | IJC-A Vol.49A(08) [August 2010]
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