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Degradation of high level m-cresol by zinc oxide as photocatalyst

In this study, the high concentration of m-cresol as a sample of organic pollutants was degraded in the presence of zinc oxide and UV irradiation during 6 h at laboratory scales. The amount of photocatalyst, pH and m-cresol concentration were considered as effective factors on the photodegradation....

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Main Authors: Abdollahi, Yadollah, Zakaria, Azmi, Sairi, Nor Asrina
Format: Article
Language:English
Published: Wiley-VCH Verlag 2014
Online Access:http://psasir.upm.edu.my/id/eprint/36974/1/Degradation%20of%20high%20level%20m.pdf
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spelling oai:psasir.upm.edu.my:36974 http://psasir.upm.edu.my/id/eprint/36974/ Degradation of high level m-cresol by zinc oxide as photocatalyst Abdollahi, Yadollah Zakaria, Azmi Sairi, Nor Asrina In this study, the high concentration of m-cresol as a sample of organic pollutants was degraded in the presence of zinc oxide and UV irradiation during 6 h at laboratory scales. The amount of photocatalyst, pH and m-cresol concentration were considered as effective factors on the photodegradation. The demineralization of m-cresol was measured by UV–Vis spectrophotometry while the total organic carbon-analyzer was used to determine the mineralization. The ultrahigh performance LC was used to identify probable intermediates. The results showed optimum condition at pH 7–9, which is the natural pH of industrial wastewater. Moreover, 100% of m-cresol was removed after 5 h of irradiation time, which is quite significant. The detected intermediates were 3,5-hydroxytoluene, 2,5-hydroxy-benzaldehyde, and 3-hydroxy-benzaldehyde after 3 h of reaction time. Reusability of the photocatalyst showed insignificant reduction in the photo-catalytic performance. In conclusion, this investigation indicated high potential of zinc oxide suspension to remove high level concentration of m-cresol under UV irradiation. Wiley-VCH Verlag 2014-09 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36974/1/Degradation%20of%20high%20level%20m.pdf Abdollahi, Yadollah and Zakaria, Azmi and Sairi, Nor Asrina (2014) Degradation of high level m-cresol by zinc oxide as photocatalyst. CLEAN - Soil, Air, Water, 42 (9). pp. 1292-1297. ISSN 1863-0605; ESSN:1863-0669 10.1002/clen.201300451
institution UPM IR
collection UPM IR
language English
description In this study, the high concentration of m-cresol as a sample of organic pollutants was degraded in the presence of zinc oxide and UV irradiation during 6 h at laboratory scales. The amount of photocatalyst, pH and m-cresol concentration were considered as effective factors on the photodegradation. The demineralization of m-cresol was measured by UV–Vis spectrophotometry while the total organic carbon-analyzer was used to determine the mineralization. The ultrahigh performance LC was used to identify probable intermediates. The results showed optimum condition at pH 7–9, which is the natural pH of industrial wastewater. Moreover, 100% of m-cresol was removed after 5 h of irradiation time, which is quite significant. The detected intermediates were 3,5-hydroxytoluene, 2,5-hydroxy-benzaldehyde, and 3-hydroxy-benzaldehyde after 3 h of reaction time. Reusability of the photocatalyst showed insignificant reduction in the photo-catalytic performance. In conclusion, this investigation indicated high potential of zinc oxide suspension to remove high level concentration of m-cresol under UV irradiation.
format Article
author Abdollahi, Yadollah
Zakaria, Azmi
Sairi, Nor Asrina
spellingShingle Abdollahi, Yadollah
Zakaria, Azmi
Sairi, Nor Asrina
Degradation of high level m-cresol by zinc oxide as photocatalyst
author_facet Abdollahi, Yadollah
Zakaria, Azmi
Sairi, Nor Asrina
author_sort Abdollahi, Yadollah
title Degradation of high level m-cresol by zinc oxide as photocatalyst
title_short Degradation of high level m-cresol by zinc oxide as photocatalyst
title_full Degradation of high level m-cresol by zinc oxide as photocatalyst
title_fullStr Degradation of high level m-cresol by zinc oxide as photocatalyst
title_full_unstemmed Degradation of high level m-cresol by zinc oxide as photocatalyst
title_sort degradation of high level m-cresol by zinc oxide as photocatalyst
publisher Wiley-VCH Verlag
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/36974/1/Degradation%20of%20high%20level%20m.pdf
_version_ 1819295935505629184
score 13.4562235

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