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Improved photocatalytic performance of ZnO through AgCu bimetal coupling for the photodegradation of nitrobenzene


Citation

Aliyu, Hauwa Sidi and Abdullah, Abdul Halim and Abbas, Zulkifly (2017) Improved photocatalytic performance of ZnO through AgCu bimetal coupling for the photodegradation of nitrobenzene. Malaysian Journal of Chemistry, 19 (1). 24 - 32. ISSN 1511-2292

Abstract / Synopsis

A ZnO semiconductor with bimetals (Ag and Cu) coupled in the matrix was successfully prepared using a microwave irradiation technique under a very low synthetic temperature and power of 120ºC and 240 W, respectively. The phase, structural, morphological, and elemental compositions of the synthesized AgCu-ZnO photocatalyst were investigated using transmission electron microscopy, field emission scanning electron microscopy, X-ray diffraction and energy dispersed X-ray and X-ray fluorescence spectroscopy. The band gap energy of the photocatalyst was estimated from the absorption data obtained in UV-Vis spectroscopic analysis. The photodegradation efficiency of the AgCu-ZnO photocatalyst immobilised on a glass plate was evaluated using nitrobenzene (NB) as the model organic pollutant. The immobilized AgCu/ZnO photocatalyst effectively degraded 99% of 20 ppm NB at an optimum catalyst loading of 0.75 g after 2 h of visible light irradiation.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
Publisher: Institut Kimia Malaysia
Keywords: Photodegradation; AgCu/ZnO photocatalyst; Immobilization; Nitrobenzene
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 15 Apr 2019 11:11
Last Modified: 15 Apr 2019 11:11
URI: http://psasir.upm.edu.my/id/eprint/62118
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