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Preparation of supported photocatalytic membrane from mesoporous titania spheres for humic acid removal from wastewater

Leong, Sookwan, Low, Ze-Xian, Liu, Qi, Hapgood, Karen, Zhang, Xiwang and Wang, Husnting 2016, Preparation of supported photocatalytic membrane from mesoporous titania spheres for humic acid removal from wastewater, Asia-Pacific journal of chemical engineering, vol. 11, no. 4, pp. 611-619, doi: 10.1002/apj.1988.

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Title Preparation of supported photocatalytic membrane from mesoporous titania spheres for humic acid removal from wastewater
Author(s) Leong, Sookwan
Low, Ze-Xian
Liu, Qi
Hapgood, KarenORCID iD for Hapgood, Karen orcid.org/0000-0002-0402-8954
Zhang, Xiwang
Wang, Husnting
Journal name Asia-Pacific journal of chemical engineering
Volume number 11
Issue number 4
Start page 611
End page 619
Total pages 9
Publisher Wiley-Blackwell
Place of publication Chichester, Eng.
Publication date 2016-07
ISSN 1932-2135
1932-2143
Keyword(s) TiO2 spheres
ceramic membrane
photocatalytic degradation
wastewater treatment
Summary Alumina-supported titania photocatalytic membrane was prepared by coating of TiO2 spheres to remove humic acid from wastewater via photocatalytic oxidation degradation combined with physical filtration. TiO2 spheres with an average diameter of about 225 nm were synthesized by hydrothermal crystallization of titanium glycolate spheres with an average diameter of 280 nm. The X-ray diffraction results indicated that the resulting TiO2 spheres consisted of anatase and brookite phases. The transmission electron microscopy images showed that the TiO2 spheres consisted of small crystallites with sizes of about 10 nm and confirmed their crystal structures. The nitrogen sorption experiments indicated that the TiO2 spheres were mesoporous and had an average pore diameter of 10.2 nm and a Brunauer, Emmet and Teller surface of 86.7 m2/g. The alumina-supported TiO2 sphere membrane, which was prepared by 10% TiO2 coating solution, exhibited excellent photocatalytic property; in particular, it degraded 58% of humic acid after 240-min UV light irradiation. It also removed 92% of humic acid in filtration process and with aid of 15-min UV light irradiation interval throughout 3 h of filtration process. In addition, the permeate flux of the TiO2 membrane was improved because of reduced membrane fouling.
Language eng
DOI 10.1002/apj.1988
Field of Research 0904 Chemical Engineering
Socio Economic Objective 0 Not Applicable
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Curtin University of Technology and John Wiley & Sons
Persistent URL http://hdl.handle.net/10536/DRO/DU:30092334

Document type: Journal Article
Collection: School of Engineering
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