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Preparation of Titania Doped Argentum Photocatalyst and its Photoactivity Towards Palm Oil Mill Effluent Degradation

Cheng, C. K. and Mohd Rizauddin, Deraman and Ng, Kim Hoong and Khan, Maksudur R. (2016) Preparation of Titania Doped Argentum Photocatalyst and its Photoactivity Towards Palm Oil Mill Effluent Degradation. Journal of Cleaner Production, 112 (Prt. 1). pp. 1128-1135. ISSN 0959-6526 (print), 1879-1786 (online)

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Abstract

This paper reports on the photocatalytic degradation of pre-treated palm oil mill effluent (POME) over titania loaded with photocatalyst. The argentum loading on the titania was varied from 0.25 to 1.0 wt% via wet-impregnation technique. X-ray diffraction characterization of all the photocatalysts showed that the photo-active rutile phase was still intact after the photocatalyst synthesis. In addition, the UV–Vis diffuse reflectance measurements indicate an improved visible light energy absorption and that the band gap energy was significantly reduced (averaging 2.50 eV) when titania was loaded with argentum, compared to the pristine titania that recorded a reading of 3.20 eV. The 0.50 wt% argentum/titania photocatalyst offered the most effective degradation of pre-treated POME under the irradiation of 100 W of UV light (25.0%) and also visible light (16.0%), respectively, over a loading of 0.2 g/L. Significantly, the maximum photocatalyst loading determined from the current work was 1.0 g/L.

Item Type: Article
Uncontrolled Keywords: Argentum; Photocatalysis; Silver; POME; Titania; Wastewater
Subjects: T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Chemical & Natural Resources Engineering
Centre of Excellence: Rare Earth Research Centre
Depositing User: PM Dr. Chin Kui Cheng
Date Deposited: 25 Feb 2016 06:19
Last Modified: 11 Jan 2018 02:29
URI: http://umpir.ump.edu.my/id/eprint/11716
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