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Article: Highly thermal stable and highly crystalline anatase TiO 2 for photocatalysis
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TitleHighly thermal stable and highly crystalline anatase TiO 2 for photocatalysis
 
AuthorsLi, W1 2
Bai, Y1
Liu, C1
Yang, Z1
Feng, X1
Lu, X1
Van Der Laak, NK2
Chan, KY2
 
Issue Date2009
 
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/est
 
CitationEnvironmental Science And Technology, 2009, v. 43 n. 14, p. 5423-5428 [How to Cite?]
DOI: http://dx.doi.org/10.1021/es8037005
 
AbstractIn the absence of any doping and modification, the anatase-to-rutile phase transformation was inhibited at high temperatures giving rise to highly thermal stable and highly crystalline anatase TiO 2 fibers. The initial formation of the TiO 2(B) phase is found tobekey in inhibiting this transformation.Theintermediate structure of the TiO 2 fiber comprises an inner anatase core with an outer TiO 2(B) shell, which has a specific crystallographic orientation with respect to the anatase structure. During the calcination process from 300 to 800°C, both the TiO 2(B) shell and the bulk anatase crystal structure was preserved. At temperatures of 800-900°C the TiO 2(B)-to-anatase transformation was finished and a near-pure and thermally stable anatase fiber was obtained. This final product shows the same activity as a standard commercial photocatalyst Degussa P-25 when measured against unit mass, and 5 times the activity when measured with respect to the unit surface area. The anatase TiO 2 fibers presented here have considerable interest as practical photocatalysts for water purification, as they can be easily recycled without a decrease in their photocatalytic activity and can be prepared at large scale and at low cost. © 2009 American Chemical Society.
 
ISSN0013-936X
2013 Impact Factor: 5.481
 
DOIhttp://dx.doi.org/10.1021/es8037005
 
ISI Accession Number IDWOS:000268138000043
Funding AgencyGrant Number
NSFC-RGC20731160614
HKU 735/07
Changjiang Scholars and Innovative Research Team in UniversityIRT0732
NSFC20428606
20236010
20676062
20736002
20706029
20706028
Funding Information:

The collaborative research between Nanjing University of Technology and The University of Hong Kong was assisted by a NSFC-RGC Joint Research Award (20731160614 and HKU 735/07). We also thank the support by Changjiang Scholars and Innovative Research Team in University (IRT0732), Joint Research Fund of NSFC for Young Scholars Abroad (20428606), and Fund of NSFC (20236010, 20676062, 20736002, 20706029, and 20706028),

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLi, W
 
dc.contributor.authorBai, Y
 
dc.contributor.authorLiu, C
 
dc.contributor.authorYang, Z
 
dc.contributor.authorFeng, X
 
dc.contributor.authorLu, X
 
dc.contributor.authorVan Der Laak, NK
 
dc.contributor.authorChan, KY
 
dc.date.accessioned2010-09-06T06:23:02Z
 
dc.date.available2010-09-06T06:23:02Z
 
dc.date.issued2009
 
dc.description.abstractIn the absence of any doping and modification, the anatase-to-rutile phase transformation was inhibited at high temperatures giving rise to highly thermal stable and highly crystalline anatase TiO 2 fibers. The initial formation of the TiO 2(B) phase is found tobekey in inhibiting this transformation.Theintermediate structure of the TiO 2 fiber comprises an inner anatase core with an outer TiO 2(B) shell, which has a specific crystallographic orientation with respect to the anatase structure. During the calcination process from 300 to 800°C, both the TiO 2(B) shell and the bulk anatase crystal structure was preserved. At temperatures of 800-900°C the TiO 2(B)-to-anatase transformation was finished and a near-pure and thermally stable anatase fiber was obtained. This final product shows the same activity as a standard commercial photocatalyst Degussa P-25 when measured against unit mass, and 5 times the activity when measured with respect to the unit surface area. The anatase TiO 2 fibers presented here have considerable interest as practical photocatalysts for water purification, as they can be easily recycled without a decrease in their photocatalytic activity and can be prepared at large scale and at low cost. © 2009 American Chemical Society.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationEnvironmental Science And Technology, 2009, v. 43 n. 14, p. 5423-5428 [How to Cite?]
DOI: http://dx.doi.org/10.1021/es8037005
 
dc.identifier.doihttp://dx.doi.org/10.1021/es8037005
 
dc.identifier.epage5428
 
dc.identifier.hkuros162411
 
dc.identifier.isiWOS:000268138000043
Funding AgencyGrant Number
NSFC-RGC20731160614
HKU 735/07
Changjiang Scholars and Innovative Research Team in UniversityIRT0732
NSFC20428606
20236010
20676062
20736002
20706029
20706028
Funding Information:

The collaborative research between Nanjing University of Technology and The University of Hong Kong was assisted by a NSFC-RGC Joint Research Award (20731160614 and HKU 735/07). We also thank the support by Changjiang Scholars and Innovative Research Team in University (IRT0732), Joint Research Fund of NSFC for Young Scholars Abroad (20428606), and Fund of NSFC (20236010, 20676062, 20736002, 20706029, and 20706028),

 
dc.identifier.issn0013-936X
2013 Impact Factor: 5.481
 
dc.identifier.issue14
 
dc.identifier.openurl
 
dc.identifier.pmid19708376
 
dc.identifier.scopuseid_2-s2.0-67650496171
 
dc.identifier.spage5423
 
dc.identifier.urihttp://hdl.handle.net/10722/70454
 
dc.identifier.volume43
 
dc.languageeng
 
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/est
 
dc.publisher.placeUnited States
 
dc.relation.ispartofEnvironmental Science and Technology
 
dc.relation.referencesReferences in Scopus
 
dc.subject.meshHot Temperature
 
dc.subject.meshPhotochemistry - methods
 
dc.subject.meshPhotosensitizing Agents - chemistry
 
dc.subject.meshTitanium - chemistry
 
dc.subject.meshWater Pollutants, Chemical - chemistry
 
dc.titleHighly thermal stable and highly crystalline anatase TiO 2 for photocatalysis
 
dc.typeArticle
 
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<contributor.author>Feng, X</contributor.author>
<contributor.author>Lu, X</contributor.author>
<contributor.author>Van Der Laak, NK</contributor.author>
<contributor.author>Chan, KY</contributor.author>
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Author Affiliations
  1. Nanjing University of Technology
  2. The University of Hong Kong