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Photodegradation of o-cresol by zinc oxide under visible light irradiation.


Abdollahi, Yadollah and Abdullah, Abdul Halim and Zainal, Zulkarnain and Yusof, Nor Azah (2011) Photodegradation of o-cresol by zinc oxide under visible light irradiation. International Journal of Advanced Engineering, Sciences and Technologies, 8 (2). pp. 135-144. ISSN 2230-7818


The photodegradation of m-cresol was carried out under visible light (46% sunlight) by ZnO as photocatalyst. To measure the efficiency of photodegradation, the different variables studied included amount of photocatalyst, concentration of m-cresol and pH. The maximum amount of photocatalyst and concentration of m-cresol was 1.5 g/L and 25 ppm respectively. The photodegradation was favorable in the pH 6-9 range. The detected intermediates were 2-methyl-1,4-benzodiol, 2-methyl-para-benzoquinone, 3,5-dihydroxytoluene and 2,5-dihydroxy-benzaldehyde. TOC studies show that 78% of total organic carbon is removed from solution during irradiation time. This study indicates the great potential of ZnO to remove aqueous m-cresol under visible-light irradiation which is part of sunlight.

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Official URL or Download Paper: http://dx.doi.org/10.5539/ijc.v3n3p31

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.5539/ijc.v3n3p31
Publisher: IJAEST
Keywords: Photodegradation; O-cresol; Visible light; ZnO; Photocatalyst
Depositing User: Nur Farahin Ramli
Date Deposited: 23 Jul 2013 03:18
Last Modified: 10 Feb 2016 07:27
URI: http://psasir.upm.edu.my/id/eprint/25112
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