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J Hazard Mater. 2009 Aug 15;167(1-3):664-8. doi: 10.1016/j.jhazmat.2009.01.034. Epub 2009 Jan 19.

Photodegradation of phenol on Y2O3 surface: synergism by semiconductors.

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1
Department of Chemistry, Annamalai University, Annamalainagar, Tamilnadu, India. karunakaranc@rediffmail.com

Abstract

Under UV light, phenol degrades on the surface of Y(2)O(3), an insulator, and the degradation follows first-order kinetics, depends linearly on the light intensity and slows down with pH. The efficiency of degradation is higher with UV-C light than with UV-A light. While particulate anatase TiO(2), ZnO, ZnS, Fe(2)O(3), CuO, CdO, and Nb(2)O(5) individually photodegrade phenol, each semiconductor shows synergism when present along with Y(2)O(3), indicating electron-transfer from phenol adsorbed on Y(2)O(3) to the illuminated semiconductors.

PMID:
19200656
DOI:
10.1016/j.jhazmat.2009.01.034
[Indexed for MEDLINE]
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