Superiority and mechanism of Pt oriented-deposition in improving the photocatalytic activity of TiO2 sphere with exposed {0 0 1} facet

Wei Wang; Yingjie Zhou; Yaru Ni; Chunhua Lu; Zhongzi Xu

doi:10.1016/j.matlet.2015.01.030

Superiority and mechanism of Pt oriented-deposition in improving the photocatalytic activity of TiO₂ sphere with exposed {0 0 1} facet

Wei Wang, Yingjie Zhou, Yaru Ni, Chunhua Lu, Zhongzi Xu

College of Materials Science and Engineering

Nanjing University of Information Science & Technology

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Transfer and aggregation of photogenerated electrons and holes on anatase TiO₂ sphere with wholly exposed {0 0 1} facets are investigated by Pt oriented-deposition. Results indicate the Pt particles are all deposited on the edge, which is served for photo-reduction, between the {0 0 1} and {1 0 1} facets. The {0 0 1} facets will serve for photo-oxidation. This structure is superior to that of Pt random-deposition, resulting in higher efficiency in separating photogenerated electrons and holes. Proper amount of deposited Pt is also an important factor in affecting the photocatalytic activity of TiO₂. Photocatalytic degradation of RhB and phenol suggest the as-prepared photocatalysts can be efficient candidates for decomposing organic pollutants.

Original language	English
Pages (from-to)	180-183
Number of pages	4
Journal	Materials Letters
Volume	145
DOIs	https://doi.org/10.1016/j.matlet.2015.01.030
State	Published - 15 Apr 2015

Keywords

Microstructure
Semiconductor
Solar energy material
TiO

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title = "Superiority and mechanism of Pt oriented-deposition in improving the photocatalytic activity of TiO2 sphere with exposed {0 0 1} facet",

abstract = "Transfer and aggregation of photogenerated electrons and holes on anatase TiO2 sphere with wholly exposed {0 0 1} facets are investigated by Pt oriented-deposition. Results indicate the Pt particles are all deposited on the edge, which is served for photo-reduction, between the {0 0 1} and {1 0 1} facets. The {0 0 1} facets will serve for photo-oxidation. This structure is superior to that of Pt random-deposition, resulting in higher efficiency in separating photogenerated electrons and holes. Proper amount of deposited Pt is also an important factor in affecting the photocatalytic activity of TiO2. Photocatalytic degradation of RhB and phenol suggest the as-prepared photocatalysts can be efficient candidates for decomposing organic pollutants.",

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T1 - Superiority and mechanism of Pt oriented-deposition in improving the photocatalytic activity of TiO2 sphere with exposed {0 0 1} facet

AU - Wang, Wei

AU - Zhou, Yingjie

AU - Ni, Yaru

AU - Lu, Chunhua

AU - Xu, Zhongzi

PY - 2015/4/15

Y1 - 2015/4/15

N2 - Transfer and aggregation of photogenerated electrons and holes on anatase TiO2 sphere with wholly exposed {0 0 1} facets are investigated by Pt oriented-deposition. Results indicate the Pt particles are all deposited on the edge, which is served for photo-reduction, between the {0 0 1} and {1 0 1} facets. The {0 0 1} facets will serve for photo-oxidation. This structure is superior to that of Pt random-deposition, resulting in higher efficiency in separating photogenerated electrons and holes. Proper amount of deposited Pt is also an important factor in affecting the photocatalytic activity of TiO2. Photocatalytic degradation of RhB and phenol suggest the as-prepared photocatalysts can be efficient candidates for decomposing organic pollutants.

AB - Transfer and aggregation of photogenerated electrons and holes on anatase TiO2 sphere with wholly exposed {0 0 1} facets are investigated by Pt oriented-deposition. Results indicate the Pt particles are all deposited on the edge, which is served for photo-reduction, between the {0 0 1} and {1 0 1} facets. The {0 0 1} facets will serve for photo-oxidation. This structure is superior to that of Pt random-deposition, resulting in higher efficiency in separating photogenerated electrons and holes. Proper amount of deposited Pt is also an important factor in affecting the photocatalytic activity of TiO2. Photocatalytic degradation of RhB and phenol suggest the as-prepared photocatalysts can be efficient candidates for decomposing organic pollutants.

KW - Microstructure

KW - Semiconductor

KW - Solar energy material

KW - TiO

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U2 - 10.1016/j.matlet.2015.01.030

DO - 10.1016/j.matlet.2015.01.030

M3 - 文章

AN - SCOPUS:84922560854

SN - 0167-577X

VL - 145

SP - 180

EP - 183

JO - Materials Letters

JF - Materials Letters

ER -

Superiority and mechanism of Pt oriented-deposition in improving the photocatalytic activity of TiO₂ sphere with exposed {0 0 1} facet

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Keywords

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