Effect of plasma treatment on surface properties of TiO2 nanoparticulate films

Yaan Cao; Qingjiu Meng; Wensheng Yang; Jianghong Yao; Yongchun Shu; Wei Wang; Guohua Chen

doi:10.1016/j.colsurfa.2005.04.029

Effect of plasma treatment on surface properties of TiO₂ nanoparticulate films

Yaan Cao, Qingjiu Meng, Wensheng Yang, Jianghong Yao, Yongchun Shu, Wei Wang, Guohua Chen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

23 Citations (Scopus)

Abstract

TiO₂ nanoparticle films were prepared by plasma-enhanced chemical vapor deposition, and subsequently, their surfaces were treated by TiCl₄ and O₂ plasmas, respectively. Experiments of phenol photodegradation show that the TiO₂ film treated by O₂ plasma presents much higher photocatalytic activity than that treated by TiCl₄ plasma. X-ray photoelectron spectral analyses indicate that more active species, such as O₂^-, are formed on surface of the film treated by O₂ plasma than that treated by TiCl₄ plasma. The energy levels of the surface species and the photogenerated electronic transitions via these surface species are further investigated by surface photovoltage spectra (SPS) and electric field-induced surface photovoltage spectra (EFISPS). © 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	181-186
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	262
Issue number	1-3
DOIs	https://doi.org/10.1016/j.colsurfa.2005.04.029
Publication status	Published - 15 Jul 2005
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

PCVD
Photocatalytic activity
Surface species
TiO2 nanoparticulate film

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title = "Effect of plasma treatment on surface properties of TiO2 nanoparticulate films",

abstract = "TiO2 nanoparticle films were prepared by plasma-enhanced chemical vapor deposition, and subsequently, their surfaces were treated by TiCl4 and O2 plasmas, respectively. Experiments of phenol photodegradation show that the TiO2 film treated by O2 plasma presents much higher photocatalytic activity than that treated by TiCl4 plasma. X-ray photoelectron spectral analyses indicate that more active species, such as O2-, are formed on surface of the film treated by O2 plasma than that treated by TiCl4 plasma. The energy levels of the surface species and the photogenerated electronic transitions via these surface species are further investigated by surface photovoltage spectra (SPS) and electric field-induced surface photovoltage spectra (EFISPS). {\textcopyright} 2005 Elsevier B.V. All rights reserved.",

keywords = "PCVD, Photocatalytic activity, Surface species, TiO2 nanoparticulate film",

author = "Yaan Cao and Qingjiu Meng and Wensheng Yang and Jianghong Yao and Yongchun Shu and Wei Wang and Guohua Chen",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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TY - JOUR

T1 - Effect of plasma treatment on surface properties of TiO2 nanoparticulate films

AU - Cao, Yaan

AU - Meng, Qingjiu

AU - Yang, Wensheng

AU - Yao, Jianghong

AU - Shu, Yongchun

AU - Wang, Wei

AU - Chen, Guohua

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2005/7/15

Y1 - 2005/7/15

N2 - TiO2 nanoparticle films were prepared by plasma-enhanced chemical vapor deposition, and subsequently, their surfaces were treated by TiCl4 and O2 plasmas, respectively. Experiments of phenol photodegradation show that the TiO2 film treated by O2 plasma presents much higher photocatalytic activity than that treated by TiCl4 plasma. X-ray photoelectron spectral analyses indicate that more active species, such as O2-, are formed on surface of the film treated by O2 plasma than that treated by TiCl4 plasma. The energy levels of the surface species and the photogenerated electronic transitions via these surface species are further investigated by surface photovoltage spectra (SPS) and electric field-induced surface photovoltage spectra (EFISPS). © 2005 Elsevier B.V. All rights reserved.

AB - TiO2 nanoparticle films were prepared by plasma-enhanced chemical vapor deposition, and subsequently, their surfaces were treated by TiCl4 and O2 plasmas, respectively. Experiments of phenol photodegradation show that the TiO2 film treated by O2 plasma presents much higher photocatalytic activity than that treated by TiCl4 plasma. X-ray photoelectron spectral analyses indicate that more active species, such as O2-, are formed on surface of the film treated by O2 plasma than that treated by TiCl4 plasma. The energy levels of the surface species and the photogenerated electronic transitions via these surface species are further investigated by surface photovoltage spectra (SPS) and electric field-induced surface photovoltage spectra (EFISPS). © 2005 Elsevier B.V. All rights reserved.

KW - PCVD

KW - Photocatalytic activity

KW - Surface species

KW - TiO2 nanoparticulate film

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U2 - 10.1016/j.colsurfa.2005.04.029

DO - 10.1016/j.colsurfa.2005.04.029

M3 - RGC 21 - Publication in refereed journal

SN - 0927-7757

VL - 262

SP - 181

EP - 186

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

IS - 1-3

ER -