Linked Life Data

20717595

Source:http://linkedlifedata.com/resource/pubmed/id/20717595

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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
38
pubmed:dateCreated
2010-9-24
pubmed:abstractText
We investigated the effects of annealing in air on fluorinated N-doped TiO(2) (F/N-TiO(2)) photocatalysts prepared by hydrothermal process. The textural properties (specific surface areas) and surface properties (surface defect density, surface [triple bond]Ti-F density) were significantly modified upon annealing. In contrast, due to the shielding effect of surface fluorination, the phase transformation from anatase to rutile as well as removal of N-dopants during annealing was greatly inhibited. The evolution of the chemical nature of doped nitrogen species upon annealing in air was investigated and correlated with the generation and annihilation of oxygen deficiency. The defect density dominated the visible-light absorption and production of active ?OH. The textural properties and the surface characteristics were crucial for UV-light photocatalytic performance, while the visible-light photocatalytic activity was mainly associated with the defect density. The 300 °C-annealed F/N-TiO(2) sample showed considerable photocatalytic activity under both UV and visible-light irradiation.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Oct
pubmed:issn
1463-9084
pubmed:author
pubmed:issnType
Electronic
pubmed:day
14
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
12308-15
pubmed:year
2010
pubmed:articleTitle
Effects of annealing on the microstructures and photoactivity of fluorinated N-doped TiO2.
pubmed:affiliation
State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122#, Wuhan 430070, PR China.
pubmed:publicationType
Journal Article