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Photocatalytic degradation of p-Cresol by zinc oxide under UV irradiation

Abdollahi, Yadollah and Abdullah, Abdul Halim and Zainal, Zulkarnain and Yusof, Nor Azah (2012) Photocatalytic degradation of p-Cresol by zinc oxide under UV irradiation. International Journal of Molecular Sciences, 13 (1). pp. 302-315. ISSN 1422-0067; ESSN:1422-0067

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Photocatalytic degradation of p-cresol was carried out using ZnO under UV irradiation. The amount of photocatalyst, concentration of p-cresol and pH were studied as variables. The residual concentration and mineralization of p-cresol was monitored using a UV-visible spectrophotometer and total organic carbon (TOC) analyzer, respectively. The intermediates were detected by ultra high pressure liquid chromatography (UPLC). The highest photodegradation of p-cresol was observed at 2.5 g/L of ZnO and 100 ppm of pcresol. P-cresol photocatalytic degradation was favorable in the pH range of 6-9. The detected intermediates were 4-hydroxy-benzaldehyde and 4-methyl-1,2-benzodiol. TOC studies show that 93% of total organic carbon was removed from solution during irradiation time. Reusability shows no significant reduction in photocatalytic performance in photodegrading p-cresol.

Item Type:Article
Keyword:Photocatalytic degradation; P-cresol; Mineralizatin; ZnO; UV
Faculty or Institute:Faculty of Science
DOI Number:10.3390/ijms13010302
ID Code:25222
Deposited By: Nur Farahin Ramli
Deposited On:12 Jul 2013 16:21
Last Modified:10 Feb 2016 16:08

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