Int. J. Mol. Sci. 2012, 13(1), 302-315; doi:10.3390/ijms13010302
Article

Photocatalytic Degradation of p-Cresol by Zinc Oxide under UV Irradiation

1,* email, 1,2,* email, 1,2email and 2email
Received: 5 September 2011; Accepted: 11 October 2011 / Published: 27 December 2011
(This article belongs to the Section Material Sciences and Nanotechnology)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: 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 p-cresol. 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.
Keywords: photocatalytic degradation; p-cresol; mineralization; ZnO; UV
PDF Full-text Download PDF Full-Text [233 KB, uploaded 19 June 2014 04:09 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Abdollahi, Y.; Abdullah, A.H.; Zainal, Z.; Yusof, N.A. Photocatalytic Degradation of p-Cresol by Zinc Oxide under UV Irradiation. Int. J. Mol. Sci. 2012, 13, 302-315.

AMA Style

Abdollahi Y, Abdullah AH, Zainal Z, Yusof NA. Photocatalytic Degradation of p-Cresol by Zinc Oxide under UV Irradiation. International Journal of Molecular Sciences. 2012; 13(1):302-315.

Chicago/Turabian Style

Abdollahi, Yadollah; Abdullah, Abdul Halim; Zainal, Zulkarnain; Yusof, Nor Azah. 2012. "Photocatalytic Degradation of p-Cresol by Zinc Oxide under UV Irradiation." Int. J. Mol. Sci. 13, no. 1: 302-315.

Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert