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- Title
Degradation of Leather Dye Using CeO-SnO Nanocomposite as Photocatalyst Under Sunlight.
- Authors
Foletto, Edson; Battiston, Suellen; Collazzo, Gabriela; Bassaco, Mariana; Mazutti, Marcio
- Abstract
Nanocomposite of CeO-SnO containing different CeO contents was prepared by coprecipitation process. The material obtained was characterized by X-ray diffraction and N 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 CeO-SnO oxide ranged depending on the CeO contents. The optimum amount of CeO for the synthesis of CeO-SnO was 7 wt.% since the nanoparticles showed high photocatalytic activity in the degradation of the dye, similar to that of the TiO-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 CeO-SnO can be used for the removal of dyes from wastewater.
- Subjects
LEATHER dyeing; CERIUM oxides; TIN oxides; PHOTOCATALYSIS; NANOCOMPOSITE materials; SUNSHINE; PRECIPITATION (Chemistry)
- Publication
Water, Air & Soil Pollution, 2012, Vol 223, Issue 9, p5773
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-012-1313-3