First-Principle Study of Electronic Structure and Enhanced Visible-Light Photocatalytic Activity of Anatase TiO2 through C and F Codoping
2013 ◽
Vol 746
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pp. 400-405
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Keyword(s):
Band Gap
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The large intrinsic band gap in TiO2has hindered severely its potential application for visible-light irradiation, while anion doping has led to decreases in visible-light photocatalytic activity in spite of narrowing the host band gap. In this study, we have used cation-passivated codoping of (C, F), (C, 2F) and (2C, F) to modify the band edges of anatase TiO2to extend absorption to longer visible-light wavelegenths using the density functional theory based on GGA + U method. The results indicate that the codoping of C/F=1/1 cases have much more efficient and stable photocatalyst than pristine one and the others, which narrow the band gaps and realize the visible-light response activities.
2014 ◽
Vol 941-944
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pp. 588-592
2014 ◽
Vol 955-959
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pp. 84-87
2015 ◽
Vol 119
(41)
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pp. 23503-23514
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2014 ◽
Vol 2014
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pp. 1-5
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2012 ◽
Vol 2012
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pp. 1-6
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2016 ◽
Vol 465
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pp. 1-10
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