| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 229797 | Journal of Saudi Chemical Society | 2012 | 7 Pages |
Abstract
Photocatalytic decolorization of BGY, an anionic dye, has been investigated in TiO2 and ZnO aqueous dispersions under UV-light irradiation. Spectrum of the dye has been found unaffected in the pH range 4.21–11.30. Adsorption is a prerequisite for the metal oxide-mediated photodegradation/photodecolorization and the extent of decolorization has been discussed in terms of the Langmuir–Hinshelwood model. Complete decolorization was achieved in case of UV irradiation whereas degradation of BGY was found to be about ca.75%. ZnO-mediated decolorization has appeared to be better and faster. The effects of various parameters, such as catalyst loading, pH and initial concentration of the dye on decolorization have been investigated.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Md. Ahsan Habib, Iqbal Mohmmad Ibrahim Ismail, Abu Jafar Mahmood, Md. Rafique Ullah,