In situ XANES studies of CuO/TiO2 thin films during photocatalytic degradation of CHCl3

Tung Li Hsiung, H. Paul Wang, Yang Ming Lu, M. C. Hsiao

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24 Citations (Scopus)

Abstract

Speciation of titanium in the CuO/TiO2 thin film (synthesized by radio frequency magnetron sputtering) during photocatalytic decomposition of CHCl3 has been studied by in situ X-ray absorption near-edge structural (XANES) spectroscopy. Little perturbation was observed in the Ti K-edge XANES spectra of the CuO/TiO2 during photocatalysis. However, by prolonging the UV/VIS radiation to 90 min, the copper K-edge white line absorbance was enhanced suggesting electron donation (from the encapsulated TiO2) to surface CuO, which was also observed by electron spectroscopy for chemical analysis (ESCA) spectroscopy.

Original languageEnglish
Pages (from-to)2054-2057
Number of pages4
JournalRadiation Physics and Chemistry
Volume75
Issue number11 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Nov

All Science Journal Classification (ASJC) codes

  • Radiation

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