Published February 2, 2007 | Version v1
Journal article Metadata-only

In Situ XANES Study of CuO/TiO2 Thin Films During Photodegradation of Methylene Blue

Creators

  • 1. Department of Environmental Engineering, National Cheng Kung University, Tainan City 70101, Taiwan (China)
  • 2. Sustainable Environment Research Center, National Cheng Kung University, Tainan City 70101, Taiwan (China)
  • 3. Department of Environmental Science and Engineering, Tunghai University, Taichung, 407 Taiwan (China)

Description

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 A during photocatalytic degradation of methylene blue

Additional details

Identifiers

DOI
10.1063/1.2644591;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
882
Journal Issue
1
Journal Page Range
p. 556-558
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
13. international conference on X-ray absorption fine structure
Acronym
XAFS13
Dates
9-14 Jul 2006
Place
Stanford, CA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39071680
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; BOND LENGTHS; COPPER; COPPER OXIDES; DEPOSITION; FINE STRUCTURE; FOURIER TRANSFORMATION; INTERFACES; METHYLENE BLUE; PHOTOCATALYSIS; PHOTOCHEMISTRY; THIN FILMS; TITANIUM OXIDES; X-RAY SPECTRA; X-RAY SPECTROSCOPY
Descriptors DEC
AMINES; ANTI-INFECTIVE AGENTS; ANTIMICROBIAL AGENTS; AZINES; CATALYSIS; CHALCOGENIDES; CHEMISTRY; CHLORIDES; CHLORINE COMPOUNDS; COPPER COMPOUNDS; DIMENSIONS; DRUGS; ELEMENTS; FILMS; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; INTEGRAL TRANSFORMATIONS; LENGTH; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHENOTHIAZINES; SPECTRA; SPECTROSCOPY; TITANIUM COMPOUNDS; TRANSFORMATIONS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Notes
(c) 2007 American Institute of Physics