Selectivity in photocatalysis by particulate semiconductors

• Authors: Chockalingam Karunakaran , Ramamoorthy Dhanalakshmi
• Languages of publication: EN

Abstracts

EN

TiO2, Fe2O3, CuO, ZnO, ZnS, Nb2O5, MoO3, CdO, CdS, Sb2O3, CeO2, HgO, Pb2O3, PbO2 and Bi2O3 microparticles exhibit band gap excitation with UV-A light but they are selective to photodegrade phenols. While TiO2 anatase and ZnO photocatalyze the degradation of phenol, o-aminophenol, m-aminophenol, p-aminophenol, o-chlorophenol, m-chlorophenol, p-chlorophenol, o-nitrophenol, p-nitrophenol, o-cresol, m-cresol, p-cresol, catechol, resorcinol and quinol, MoO3 does not photodegrade any of the fifteen phenols. Fe2O3, CuO, ZnS, Nb2O5, CdO, CdS, Sb2O3, CeO2, HgO, Pb2O3, PbO2 and Bi2O3 are selective in photodegrading the fifteen phenols; however, the phenols get adsorbed over all sixteen particulate semiconductors. [...]

Keywords

EN

Metal oxide; Catalysis; Surface; Phenol; Photodegradation

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2009
• Volume: 7
• Issue: 1
• Pages: 134-137

Dates

published

1 - 3 - 2009

online

23 - 12 - 2008

Contributors

author

Chockalingam Karunakaran

• Department of Chemistry, Annamalai University, Annamalainagar, 608002, Tamilnadu, India

author

Ramamoorthy Dhanalakshmi

• Department of Chemistry, Annamalai University, Annamalainagar, 608002, Tamilnadu, India

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Identifiers

DOI

10.2478/s11532-008-0083-7