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SYNTHESIS OF SILVER DOPED ZINC OXIDE TIN OXIDE COUPLED NANOPARTICLES AND PHOTOCATALYTIC ACTIVITY IN THE REMOVAL OF A MODEL CONTAMINANT

AUTHOR/S: M. A. BEHNAJADY, N. MODIRSHAHLA, L. AYRAMLO
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 2, 815-820 pp

ABSTRACT

ZnO-SnO2 coupled catalyst was prepared by coprecipitation method. Then Ag was
loaded on the coupled catalyst by impregnation method. The photocatalytic
performance of silver doped ZnO-SnO2 was tested by photocatalytic degradation of C.I.
Acid Red 27 (AR27) as a model contaminant from mono azo textile dyes. The
crystallite size of nanoparticles was obtained by X-Ray diffraction (XRD). Results
demonstrate that silver doped ZnO-SnO2 have shown high photocatalytic efficiency
than undoped ZnO-SnO2 at photocatalytic degradation of AR27.

Keywords: Heterogeneous photocatalysis, ZnO-SnO2 nanoparticles, silver doping, impregnation method, C.I. Acid Red 27