Photodegradation of  o ‐Cresol with Ag Deposited on TiO 2  under Visible and UV Light Irradiation | Zendy

Chen H. W. | Zendy; Ku Y. | Zendy; Kuo Y. L. | Zendy

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Photodegradation of o ‐Cresol with Ag Deposited on TiO 2 under Visible and UV Light Irradiation

Author(s) -

Chen H. W.,

Ku Y.,

Kuo Y. L.

Publication year - 2007

Publication title -

chemical engineering and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.403

H-Index - 81

eISSN - 1521-4125

pISSN - 0930-7516

DOI - 10.1002/ceat.200700196

Subject(s) - photodegradation , visible spectrum , photochemistry , irradiation , photocatalysis , quantum yield , decomposition , absorption (acoustics) , ultraviolet , materials science , absorption spectroscopy , photodissociation , chemistry , optics , optoelectronics , catalysis , fluorescence , organic chemistry , physics , nuclear physics , composite material

This study investigated the effect of dosage of Ag on the characteristics of TiO 2 , quantum yield, and temporal decomposition behavior of o ‐cresol in an annular reactor under ultraviolet (UV) and visible light irradiation. In order to extend light absorption and minimize the rapid recombination during photoreaction, the Ag deposited on TiO 2 photocatalysts was prepared by a photodeposition process. The results of diffuse reflectance spectra (DRS) indicated that Ag deposited on TiO 2 promoted the optical absorption in the visible region and made it possible for it to be excited by visible light. The degradation rate of o ‐cresol with 0.50 wt % Ag/TiO 2 under visible light irradiation was 2.0 times that with pure TiO 2 .

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