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Vol. 32 No. 2 (2020): Vol 32 Issue 2

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Kinetics and Photodegradation Study of Congo Red using Mg with Ti/Al Co-Doped ZnO Nanocomposite under UV Light

https://doi.org/10.14233/ajchem.2020.22383
S. Arul
Department of Physics, Jai Shriram Engineering College, Tirupur-638660, India
T. Senthilnathan
Department of Physics, Vellammal Engineering College, Ambattur-Red Hills Road, Surpet, Chennai-600066, India

Corresponding Author(s) : S. Arul

kirthickarul@gmail.com

Asian Journal of Chemistry, Vol. 32 No. 2 (2020): Vol 32 Issue 2

Abstract

ZnO nanocomposites co-doped with dopants like Mg with Ti or Al were prepared and assigned as ZnO-A and ZnO-B. All the nanocomposites were characterized by XRD, SEM and EDX and its utility towards the photodegradation of Congo red is studied. The present study was carried out in 30 W mercury lamp fitted in batch photoreactor and the effect of decomposition was measured in UV-absorption. Nanocomposite with combination of Ti dopant (ZnO-A) exhibited effective degrading ability to aqueous Congo red solution. A solution of 100 ppm of above concentrated ZnO nanocomposite solution was reduced nearly to 5 ppm within 5 h. The photodegradation kinetics revealed that the photodegradation of aqueous Congo red follows first order reaction and showed quite comparable degradation effeciency with earlier reports.

Keywords

ZnO nanoparticles Congo red Photodegradation Kinetics
Arul, S., & Senthilnathan, T. (2019). Kinetics and Photodegradation Study of Congo Red using Mg with Ti/Al Co-Doped ZnO Nanocomposite under UV Light. Asian Journal of Chemistry, 32(2), 369–373. https://doi.org/10.14233/ajchem.2020.22383
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