Photolytic and photocatalytic degradation of organic UV filters in contaminated water

Ahmed, MB; Johir, MAH; Zhou, JL; Ngo, HH; Guo, W; Sornalingam, K

Photolytic and photocatalytic degradation of organic UV filters in contaminated water

Ahmed, MB

Johir, MAH

Zhou, JL

Ngo, HH

Guo, W

Sornalingam, K

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Publication Type:: Journal Article
Citation:: Current Opinion in Green and Sustainable Chemistry, 2017, 6 pp. 85 - 92
Issue Date:: 2017-08-01

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Field	Value	Language
dc.contributor.author	Ahmed, MB https://orcid.org/0000-0003-4756-595X	en_US
dc.contributor.author	Johir, MAH https://orcid.org/0000-0001-6222-6943	en_US
dc.contributor.author	Zhou, JL https://orcid.org/0000-0003-1393-1608	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Sornalingam, K	en_US
dc.date.available	2020-05-25T19:18:05Z
dc.date.issued	2017-08-01	en_US
dc.identifier.citation	Current Opinion in Green and Sustainable Chemistry, 2017, 6 pp. 85 - 92	en_US
dc.identifier.issn	2452-2236	en_US
dc.identifier.uri	http://hdl.handle.net/10453/108511
dc.description.abstract	© 2017 Elsevier B.V. UV filters as emerging contaminants are of great concern and their wide detection in aquatic environments indicates their chemical stability and persistence. This review summarized the photolytic and photocatalytic degradation of UV filters in contaminated water. The findings indicated that limited research has been conducted on the photolysis and photocatalysis of UV filters. Photolysis of UV filters through UV irradiation in natural water was a slow process, which was accelerated by the presence of photosensitisers e.g. triplet state of chromaphoric dissolved organic matter (3CDOM*) and nutrients but reduced by salinity, dissolved organic matter (DOM) and divalent cations. UV Photocatalysis of 4-methylbenzylidene camphor and 2-phenylbenzimidazole-5-sulfonic acid was very effective with 100% removal within 30 min and 90 min using medicated TiO2/H2O2 and TiO2, respectively. The radiation source, type of catalyst and oxygen content were key factors. Future research should focus on improved understanding of photodegradation pathways and by-products of UV filters.	en_US
dc.relation.ispartof	Current Opinion in Green and Sustainable Chemistry	en_US
dc.relation.isbasedon	10.1016/j.cogsc.2017.06.010	en_US
dc.title	Photolytic and photocatalytic degradation of organic UV filters in contaminated water	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.for	0904 Chemical Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

© 2017 Elsevier B.V. UV filters as emerging contaminants are of great concern and their wide detection in aquatic environments indicates their chemical stability and persistence. This review summarized the photolytic and photocatalytic degradation of UV filters in contaminated water. The findings indicated that limited research has been conducted on the photolysis and photocatalysis of UV filters. Photolysis of UV filters through UV irradiation in natural water was a slow process, which was accelerated by the presence of photosensitisers e.g. triplet state of chromaphoric dissolved organic matter (3CDOM*) and nutrients but reduced by salinity, dissolved organic matter (DOM) and divalent cations. UV Photocatalysis of 4-methylbenzylidene camphor and 2-phenylbenzimidazole-5-sulfonic acid was very effective with 100% removal within 30 min and 90 min using medicated TiO2/H2O2 and TiO2, respectively. The radiation source, type of catalyst and oxygen content were key factors. Future research should focus on improved understanding of photodegradation pathways and by-products of UV filters.

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http://hdl.handle.net/10453/108511