ZnO-TiO<sub>2</sub> Composite Mediated Photocatalytic Degradation of Orange G from Aqueous Solution

Authors

  • Farhana Hossain Department of Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
  • Md Ataur Rahman Department of Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
  • Md Mufazzal Hossain Department of Chemistry, University of Dhaka, Dhaka 1000, Bangladesh

DOI:

https://doi.org/10.3329/dujs.v69i3.60033

Keywords:

Sigma-Aldrich, composites

Abstract

Composites of ZnO-TiO2 with different ratios have been prepared by heating the mixtures at different temperatures and characterized by SEM, FT-IR and XRD techniques. The results from these techniques support the formation of the composites. These composites have been applied for photodegradation of a textile dye, orange G (OG). The composite with a composition of ZnO:TiO2 = 75:25 prepared at 500 oC has been found to show the highest catalytic efficiency. The experiments have been carried out by varying the experimental conditions to optimize them. The best catalytic performance has been found with 0.25 g/100 mL of the catalyst, 1.02× 10-4 M initial concentration of OG and the UV light source. A mechanism for photocatalytic degradation of dye has been proposed.

Dhaka Univ. J. Sci. 69(3): 218-224, 2022 (June)

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Published

2022-07-04

How to Cite

Hossain, F. ., Rahman, M. A. ., & Hossain, M. M. . (2022). ZnO-TiO<sub>2</sub> Composite Mediated Photocatalytic Degradation of Orange G from Aqueous Solution. Dhaka University Journal of Science, 69(3), 218–224. https://doi.org/10.3329/dujs.v69i3.60033