Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO2 thin films

R. S. Yu; X. B. Qin; Q. Z. Wang; P. Zhang; B. Y. Wang; L. Wei; W. C. Hao; T. M. Wang

doi:10.1016/j.nimb.2010.04.007

Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO₂ thin films

R. S. Yu^*
, X. B. Qin
, Q. Z. Wang
, P. Zhang
, B. Y. Wang
, L. Wei
, W. C. Hao
, T. M. Wang

^*此作品的通讯作者

物理学院

CAS - Institute of High Energy Physics
Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

6 引用（Scopus）

摘要

Mesoporous TiO₂ films were synthesized by using triblock copolymers via a sol-gel process in aqueous solution. It was found that a film calcined at 600 °C has the highest photocatalytic activity. By application of positron annihilation Doppler broadening spectroscopy combined with XRD, SEM, and N₂ adsorption desorption techniques, the film structural properties were examined systematically. It is revealed that an excellent photocatalytic activity could be achieved only if a film maintains a suitable TiO₂ grain size, i.e. ∼7.5 nm in the present study, a median specific surface area and a high crystallinity in anatase state.

源语言	英语
页（从-至）	2362-2365
页数	4
期刊	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
卷	268
期	14
DOI	https://doi.org/10.1016/j.nimb.2010.04.007
出版状态	已出版 - 15 7月 2010

访问文件

10.1016/j.nimb.2010.04.007

其它文件与链接

链接到 Scopus 的出版物

引用此

Yu, R. S., Qin, X. B., Wang, Q. Z., Zhang, P., Wang, B. Y., Wei, L., Hao, W. C., & Wang, T. M. (2010). Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO₂ thin films. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 268(14), 2362-2365. https://doi.org/10.1016/j.nimb.2010.04.007

@article{c83d92a0f3a842fbaf37eef4b04f6f85,

title = "Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO2 thin films",

abstract = "Mesoporous TiO2 films were synthesized by using triblock copolymers via a sol-gel process in aqueous solution. It was found that a film calcined at 600 °C has the highest photocatalytic activity. By application of positron annihilation Doppler broadening spectroscopy combined with XRD, SEM, and N2 adsorption desorption techniques, the film structural properties were examined systematically. It is revealed that an excellent photocatalytic activity could be achieved only if a film maintains a suitable TiO2 grain size, i.e. ∼7.5 nm in the present study, a median specific surface area and a high crystallinity in anatase state.",

keywords = "Mesoporous, Photocatalysis, Positron annihilation, TiO",

author = "Yu, \{R. S.\} and Qin, \{X. B.\} and Wang, \{Q. Z.\} and P. Zhang and Wang, \{B. Y.\} and L. Wei and Hao, \{W. C.\} and Wang, \{T. M.\}",

year = "2010",

month = jul,

day = "15",

doi = "10.1016/j.nimb.2010.04.007",

language = "英语",

volume = "268",

pages = "2362--2365",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

number = "14",

}

Yu, RS, Qin, XB, Wang, QZ, Zhang, P, Wang, BY, Wei, L, Hao, WC & Wang, TM 2010, 'Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO₂ thin films', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 卷 268, 号码 14, 页码 2362-2365. https://doi.org/10.1016/j.nimb.2010.04.007

TY - JOUR

T1 - Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO2 thin films

AU - Yu, R. S.

AU - Qin, X. B.

AU - Wang, Q. Z.

AU - Zhang, P.

AU - Wang, B. Y.

AU - Wei, L.

AU - Hao, W. C.

AU - Wang, T. M.

PY - 2010/7/15

Y1 - 2010/7/15

N2 - Mesoporous TiO2 films were synthesized by using triblock copolymers via a sol-gel process in aqueous solution. It was found that a film calcined at 600 °C has the highest photocatalytic activity. By application of positron annihilation Doppler broadening spectroscopy combined with XRD, SEM, and N2 adsorption desorption techniques, the film structural properties were examined systematically. It is revealed that an excellent photocatalytic activity could be achieved only if a film maintains a suitable TiO2 grain size, i.e. ∼7.5 nm in the present study, a median specific surface area and a high crystallinity in anatase state.

AB - Mesoporous TiO2 films were synthesized by using triblock copolymers via a sol-gel process in aqueous solution. It was found that a film calcined at 600 °C has the highest photocatalytic activity. By application of positron annihilation Doppler broadening spectroscopy combined with XRD, SEM, and N2 adsorption desorption techniques, the film structural properties were examined systematically. It is revealed that an excellent photocatalytic activity could be achieved only if a film maintains a suitable TiO2 grain size, i.e. ∼7.5 nm in the present study, a median specific surface area and a high crystallinity in anatase state.

KW - Mesoporous

KW - Photocatalysis

KW - Positron annihilation

KW - TiO

UR - https://www.scopus.com/pages/publications/77953131924

U2 - 10.1016/j.nimb.2010.04.007

DO - 10.1016/j.nimb.2010.04.007

M3 - 文章

AN - SCOPUS:77953131924

SN - 0168-583X

VL - 268

SP - 2362

EP - 2365

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 14

ER -

Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO2 thin films

摘要

访问文件

其它文件与链接

指纹

引用此

Positron annihilation study of structural effect on photocatalytic activity of mesoporous TiO₂ thin films