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


Abdollahi, Yadollah and Abdullah, Abdul Halim and Zainal, Zulkarnain and Yusof, Nor Azah (2011) Photodegradation of m-cresol by zinc oxide under visible-light irradiation. International Journal of Chemistry, 3 (3). pp. 31-43. ISSN 1916-9752


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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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.5539/ijc.v3n3p31
Publisher: Canadian Center of Science and Education
Keywords: Photodegradation; m-cresol; Photoexcited; ZnO; Photocatalyst; Photochemistry.
Depositing User: Nur Farahin Ramli
Date Deposited: 23 Jul 2013 03:01
Last Modified: 30 Jun 2016 05:19
URI: http://psasir.upm.edu.my/id/eprint/25111
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