Abstract
Nanocomposite of CeO2–SnO2 containing different CeO2 contents was prepared by coprecipitation process. The material obtained was characterized by X-ray diffraction and N2 adsorption–desorption isotherms. Its photocatalytic activity was tested in the degradation of azo dye of leather, Direct Black 38, in aqueous solution under sunlight. The photocatalytic activity of the coupled CeO2–SnO2 oxide ranged depending on the CeO2 contents. The optimum amount of CeO2 for the synthesis of CeO2–SnO2 was 7 wt.% since the nanoparticles showed high photocatalytic activity in the degradation of the dye, similar to that of the TiO2–P25 photocatalyst. The kinetics of photocatalytic degradation and total organic carbon removal under sunlight were found to follow a first-order rate law. The results indicated that CeO2–SnO2 can be used for the removal of dyes from wastewater.
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Foletto, E.L., Battiston, S., Collazzo, G.C. et al. Degradation of Leather Dye Using CeO2–SnO2 Nanocomposite as Photocatalyst Under Sunlight. Water Air Soil Pollut 223, 5773–5779 (2012). https://doi.org/10.1007/s11270-012-1313-3
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DOI: https://doi.org/10.1007/s11270-012-1313-3