Studies of photo-induced charge transfer properties of ZnWO                         4                          photocatalyst

Dongqing He; Xiaoru Zhang; Tengfeng Xie; Jiali Zhai; Haiyan Li; Liping Chen; Linlin Peng; Yu Zhang; Tengfei Jiang

doi:10.1016/j.apsusc.2010.09.097

Studies of photo-induced charge transfer properties of ZnWO ₄ photocatalyst

Dongqing He
, Xiaoru Zhang
, Tengfeng Xie^*
, Jiali Zhai
, Haiyan Li
, Liping Chen
, Linlin Peng
, Yu Zhang
, Tengfei Jiang

^*Corresponding author for this work

College of Chemistry

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

25 Scopus citations

Abstract

Different sizes of ZnWO ₄ photocatalysts were synthesized by a hydrothermal method. The as-prepared sample shows highly efficient photocatalytic activity for the degradation of RhB under UV irradiation, which significantly vary with the increase of the hydrothermal temperatures. Surface photovoltage spectrum (SPS), field-induced surface photovoltage spectrum (FI-SPS) and surface photovoltage transient (TPV) techniques are used to investigate the detailed photoinduced charge transfer behavior. Results indicate that the ZnWO ₄ synthesized at 413 K possess the largest BET surface area and the abundant donor surface states which are assumed to inhibit the recombination of the photogenerated electron-hole pairs, and thus a significant enhancement in the reaction rate is observed.

Original language	English
Pages (from-to)	2327-2331
Number of pages	5
Journal	Applied Surface Science
Volume	257
Issue number	6
DOIs	https://doi.org/10.1016/j.apsusc.2010.09.097
State	Published - 1 Jan 2011
Externally published	Yes

Keywords

Surface photovoltage
Surface states
Transient photovoltage

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10.1016/j.apsusc.2010.09.097

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title = " Studies of photo-induced charge transfer properties of ZnWO 4 photocatalyst ",

abstract = " Different sizes of ZnWO 4 photocatalysts were synthesized by a hydrothermal method. The as-prepared sample shows highly efficient photocatalytic activity for the degradation of RhB under UV irradiation, which significantly vary with the increase of the hydrothermal temperatures. Surface photovoltage spectrum (SPS), field-induced surface photovoltage spectrum (FI-SPS) and surface photovoltage transient (TPV) techniques are used to investigate the detailed photoinduced charge transfer behavior. Results indicate that the ZnWO 4 synthesized at 413 K possess the largest BET surface area and the abundant donor surface states which are assumed to inhibit the recombination of the photogenerated electron-hole pairs, and thus a significant enhancement in the reaction rate is observed. ",

keywords = "Surface photovoltage, Surface states, Transient photovoltage",

author = "Dongqing He and Xiaoru Zhang and Tengfeng Xie and Jiali Zhai and Haiyan Li and Liping Chen and Linlin Peng and Yu Zhang and Tengfei Jiang",

year = "2011",

month = jan,

day = "1",

doi = "10.1016/j.apsusc.2010.09.097",

language = "英语",

volume = "257",

pages = "2327--2331",

journal = "Applied Surface Science",

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TY - JOUR

T1 - Studies of photo-induced charge transfer properties of ZnWO 4 photocatalyst

AU - He, Dongqing

AU - Zhang, Xiaoru

AU - Xie, Tengfeng

AU - Zhai, Jiali

AU - Li, Haiyan

AU - Chen, Liping

AU - Peng, Linlin

AU - Zhang, Yu

AU - Jiang, Tengfei

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Different sizes of ZnWO 4 photocatalysts were synthesized by a hydrothermal method. The as-prepared sample shows highly efficient photocatalytic activity for the degradation of RhB under UV irradiation, which significantly vary with the increase of the hydrothermal temperatures. Surface photovoltage spectrum (SPS), field-induced surface photovoltage spectrum (FI-SPS) and surface photovoltage transient (TPV) techniques are used to investigate the detailed photoinduced charge transfer behavior. Results indicate that the ZnWO 4 synthesized at 413 K possess the largest BET surface area and the abundant donor surface states which are assumed to inhibit the recombination of the photogenerated electron-hole pairs, and thus a significant enhancement in the reaction rate is observed.

AB - Different sizes of ZnWO 4 photocatalysts were synthesized by a hydrothermal method. The as-prepared sample shows highly efficient photocatalytic activity for the degradation of RhB under UV irradiation, which significantly vary with the increase of the hydrothermal temperatures. Surface photovoltage spectrum (SPS), field-induced surface photovoltage spectrum (FI-SPS) and surface photovoltage transient (TPV) techniques are used to investigate the detailed photoinduced charge transfer behavior. Results indicate that the ZnWO 4 synthesized at 413 K possess the largest BET surface area and the abundant donor surface states which are assumed to inhibit the recombination of the photogenerated electron-hole pairs, and thus a significant enhancement in the reaction rate is observed.

KW - Surface photovoltage

KW - Surface states

KW - Transient photovoltage

UR - https://www.scopus.com/pages/publications/78650297483

U2 - 10.1016/j.apsusc.2010.09.097

DO - 10.1016/j.apsusc.2010.09.097

M3 - 文章

AN - SCOPUS:78650297483

SN - 0169-4332

VL - 257

SP - 2327

EP - 2331

JO - Applied Surface Science

JF - Applied Surface Science

IS - 6

ER -

Studies of photo-induced charge transfer properties of ZnWO ₄ photocatalyst

Abstract

Keywords

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