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Article: An efficient bismuth tungstate visible-light-driven photocatalyst for breaking down nitric oxide

TitleAn efficient bismuth tungstate visible-light-driven photocatalyst for breaking down nitric oxide
Authors
Issue Date2010
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/est
Citation
Environmental Science And Technology, 2010, v. 44 n. 11, p. 4276-4281 How to Cite?
AbstractThis paper reports a photocatalytic removal of 400 ppb level of NO in air under visible light irradiation by utilizing three-dimensional (3D) hierarchical bismuth tungstate (Bi2WO6) microspheres. A facile microwave-assisted hydrothermal method involving bismuth nitrate and sodium wolframate was developed to synthesize the photocatalyst. The Bi 2WO6 samples were characterized by using X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), Raman and ultraviolet-visible reflectance (UV-vis) spectroscopy. The relationship between the physicochemical property and the photocatalytic performance of the as prepared samples is discussed. The present work demonstrates that the 3D hierarchical Bi2WO6 microspheres are effective visible-light-driven photocatalytic functional materials for air purification. © 2010 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/124848
ISSN
2015 Impact Factor: 5.393
2015 SCImago Journal Rankings: 2.664
ISI Accession Number ID
Funding AgencyGrant Number
Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
Strategic Investments Scheme
University of Hong Kong
Funding Information:

This research was supported by the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning,the Strategic Investments Scheme administrated by The Chinese University of Hong Kong and the UDF grant from The University of Hong Kong. We also thank Prof. S. C. Lee's group (Department of Civil and Structural Engineering of The Hong Kong Polytechnic University) for their assistance in the oxidation of NO gas measurements.

References

 

DC FieldValueLanguage
dc.contributor.authorLi, Gen_HK
dc.contributor.authorZhang, Den_HK
dc.contributor.authorYu, JCen_HK
dc.contributor.authorLeung, MKHen_HK
dc.date.accessioned2010-10-31T10:57:33Z-
dc.date.available2010-10-31T10:57:33Z-
dc.date.issued2010en_HK
dc.identifier.citationEnvironmental Science And Technology, 2010, v. 44 n. 11, p. 4276-4281en_HK
dc.identifier.issn0013-936Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/124848-
dc.description.abstractThis paper reports a photocatalytic removal of 400 ppb level of NO in air under visible light irradiation by utilizing three-dimensional (3D) hierarchical bismuth tungstate (Bi2WO6) microspheres. A facile microwave-assisted hydrothermal method involving bismuth nitrate and sodium wolframate was developed to synthesize the photocatalyst. The Bi 2WO6 samples were characterized by using X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), Raman and ultraviolet-visible reflectance (UV-vis) spectroscopy. The relationship between the physicochemical property and the photocatalytic performance of the as prepared samples is discussed. The present work demonstrates that the 3D hierarchical Bi2WO6 microspheres are effective visible-light-driven photocatalytic functional materials for air purification. © 2010 American Chemical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/esten_HK
dc.relation.ispartofEnvironmental Science and Technologyen_HK
dc.subject.meshBismuth - chemistry-
dc.subject.meshCatalysis-
dc.subject.meshNitric Oxide - chemistry-
dc.subject.meshPhotochemistry-
dc.subject.meshTungsten - chemistry-
dc.titleAn efficient bismuth tungstate visible-light-driven photocatalyst for breaking down nitric oxideen_HK
dc.typeArticleen_HK
dc.identifier.emailLeung, MKH:en_HK
dc.identifier.authorityLeung, MKH=rp00148en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/es100084aen_HK
dc.identifier.pmid20459055-
dc.identifier.scopuseid_2-s2.0-77952896407en_HK
dc.identifier.hkuros182164en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77952896407&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume44en_HK
dc.identifier.issue11en_HK
dc.identifier.spage4276en_HK
dc.identifier.epage4281en_HK
dc.identifier.isiWOS:000278003500040-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, G=7407054883en_HK
dc.identifier.scopusauthoridZhang, D=24473719200en_HK
dc.identifier.scopusauthoridYu, JC=7405528463en_HK
dc.identifier.scopusauthoridLeung, MKH=8862966600en_HK

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