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Journal of Applied Sciences
  Year: 2012 | Volume: 12 | Issue: 17 | Page No.: 1809-1816
DOI: 10.3923/jas.2012.1809.1816
 
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Photocatalytic Activity under Solar Irradiation of Silver and Copper Doped Zincoxide: Photodeposition Versus Liquid Impregnation Methods

Pannee Arsana, Chradda Bubpa and Wichien Sang-aroon

Abstract:
In this study, silver and copper doped zinc oxide photocatalysts were synthesized simply by Liquid Impregnation (LI) and Photo Deposition (PD) methods. The photocatalytic activities under solar irradiation for commercial azo dye degradation were observed. The photocatalysts with 0.5, 1.0, 1.5 2.0 and 2.5 % (mole ratio) metal versus ZnO was prepared. The photodegradation rates of the dye were estimated from the residual concentration at variable time detected by UV-Vis spectrophotometer. The experimental result shows that the Ag doped ZnO synthesized by PD method possess the highest photocatalytic activity while Cu doped ZnO synthesized by LI method has the reverse. The catalyst synthesized by PD method possesses more activity than another. The metal ion (Ag+/Cu2+) doped on ZnO acting as electron consumer leading to the lowering photocatalytic activity of the LI metal doped ZnO. The photocatalytic activity of all metal doped ZnO is in similar trend which increasing from 0.5-1.5 % mole ratio and decreasing afterward.
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How to cite this article:

Pannee Arsana, Chradda Bubpa and Wichien Sang-aroon, 2012. Photocatalytic Activity under Solar Irradiation of Silver and Copper Doped Zincoxide: Photodeposition Versus Liquid Impregnation Methods. Journal of Applied Sciences, 12: 1809-1816.

DOI: 10.3923/jas.2012.1809.1816

URL: https://scialert.net/abstract/?doi=jas.2012.1809.1816

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