In situ XANES study of CuO/TiO2 thin films during photodegradation of methylene blue

Tung Li Hsiung; H. Paul Wang; Yu Ling Wei

doi:10.1063/1.2644591

In situ XANES study of CuO/TiO₂ thin films during photodegradation of methylene blue

Tung Li Hsiung, H. Paul Wang, Yu Ling Wei

Department of Environmental Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Speciation of copper in the CuO/TiO₂ thin film (synthesized by the doctor-blade deposition method) during photocatalytic decomposition of methylene blue has been studied by in situ X-ray absorption near-edge structural (XANES) spectroscopy. During the UV/VIS radiation (90 min), in the presence of methylene blue, a decrease of Cu(II) and an increases of Cu(0) and Cu(I) fractions in the CuO/TiO₂ thin film are observed by in situ XANES. The r-space Fourier transformation EXAFS (extend X-ray absorption fine structural) spectra also show that the bond distance of Cu-O in the thin film is decreased by 0.03 Å during photocatalytic degradation of methylene blue.

Original language	English
Title of host publication	X-RAY ABSORPTION FINE STRUCTURE - XAFS13
Subtitle of host publication	13th International Conference
Pages	556-558
Number of pages	3
DOIs	https://doi.org/10.1063/1.2644591
Publication status	Published - 2007
Event	X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference - Stanford, CA, United States Duration: 2006 Jul 9 → 2006 Jul 14

Publication series

Name	AIP Conference Proceedings
Volume	882
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference
Country/Territory	United States
City	Stanford, CA
Period	06-07-09 → 06-07-14

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1063/1.2644591

Cite this

@inproceedings{f91ad79afcf540fdbc4619a5eab1ecac,

title = "In situ XANES study of CuO/TiO2 thin films during photodegradation of methylene blue",

abstract = "Speciation of copper in the CuO/TiO2 thin film (synthesized by the doctor-blade deposition method) during photocatalytic decomposition of methylene blue has been studied by in situ X-ray absorption near-edge structural (XANES) spectroscopy. During the UV/VIS radiation (90 min), in the presence of methylene blue, a decrease of Cu(II) and an increases of Cu(0) and Cu(I) fractions in the CuO/TiO2 thin film are observed by in situ XANES. The r-space Fourier transformation EXAFS (extend X-ray absorption fine structural) spectra also show that the bond distance of Cu-O in the thin film is decreased by 0.03 {\AA} during photocatalytic degradation of methylene blue.",

author = "Hsiung, {Tung Li} and Wang, {H. Paul} and Wei, {Yu Ling}",

year = "2007",

doi = "10.1063/1.2644591",

language = "English",

isbn = "0735403848",

series = "AIP Conference Proceedings",

pages = "556--558",

booktitle = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13",

}

Hsiung, TL, Wang, HP & Wei, YL 2007, In situ XANES study of CuO/TiO₂ thin films during photodegradation of methylene blue. in X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference. AIP Conference Proceedings, vol. 882, pp. 556-558, X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference, Stanford, CA, United States, 06-07-09. https://doi.org/10.1063/1.2644591

TY - GEN

T1 - In situ XANES study of CuO/TiO2 thin films during photodegradation of methylene blue

AU - Hsiung, Tung Li

AU - Wang, H. Paul

AU - Wei, Yu Ling

PY - 2007

Y1 - 2007

N2 - Speciation of copper in the CuO/TiO2 thin film (synthesized by the doctor-blade deposition method) during photocatalytic decomposition of methylene blue has been studied by in situ X-ray absorption near-edge structural (XANES) spectroscopy. During the UV/VIS radiation (90 min), in the presence of methylene blue, a decrease of Cu(II) and an increases of Cu(0) and Cu(I) fractions in the CuO/TiO2 thin film are observed by in situ XANES. The r-space Fourier transformation EXAFS (extend X-ray absorption fine structural) spectra also show that the bond distance of Cu-O in the thin film is decreased by 0.03 Å during photocatalytic degradation of methylene blue.

AB - Speciation of copper in the CuO/TiO2 thin film (synthesized by the doctor-blade deposition method) during photocatalytic decomposition of methylene blue has been studied by in situ X-ray absorption near-edge structural (XANES) spectroscopy. During the UV/VIS radiation (90 min), in the presence of methylene blue, a decrease of Cu(II) and an increases of Cu(0) and Cu(I) fractions in the CuO/TiO2 thin film are observed by in situ XANES. The r-space Fourier transformation EXAFS (extend X-ray absorption fine structural) spectra also show that the bond distance of Cu-O in the thin film is decreased by 0.03 Å during photocatalytic degradation of methylene blue.

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DO - 10.1063/1.2644591

M3 - Conference contribution

AN - SCOPUS:33947398398

SN - 0735403848

SN - 9780735403840

T3 - AIP Conference Proceedings

SP - 556

EP - 558

BT - X-RAY ABSORPTION FINE STRUCTURE - XAFS13

T2 - X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference

Y2 - 9 July 2006 through 14 July 2006

ER -