ISSN : 0970 - 020X, ONLINE ISSN : 2231-5039
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Abstract

Synthesis, Characterization of SiO2/TiO2 and SiO2/Al2O3 Nano-Composites for the Photo-Degradation of Acid Brown- 43 dye with Irradiation of Solar Light  

P. Thirumavalavan1,2, Venckatesh Rajendran2 and Rajeshwari Sivaraj2

DOI : http://dx.doi.org/10.13005/ojc/340555


Abstract:

In this study we have found that photo degradation of Acid brown- 43 dye with irradiation Solar light Using synthesized SiO2/ TiO2 and SiO2/Al2O3 Nano-composites which prepared by chemical precipitation technique using microwave irradiation. The structure and morphology of SiO2/TiO2 and SiO2/Al2O3) Nano composites were characterized by SEM, EDAX & TEM analysis. The similarities in photo degradation mechanism, SiO2 , Al2O3 and TiO2 have as good as band gap energy, and possess worthy standing as photo-catalysts. SiO2/TiO2 and SiO2/Al2O3 nanoparticles have large surface area and thus provide a large number of active sites for interaction among the particles of different oxides. This synthesized Nano-composites of SiO2/TiO2 and SiO2/Al2O3 photo-catalyst sample showed tremendous photo-catalytic activity for the degradation of Acid Blue - 43 under direct exposure to solar irradiation with respect to exposed time and dose of Nano-composites.

Keywords:

Acid brown– 43; Nano-Composite; Photo-Degradation; Solar Irradiation

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