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Article
Au@TiO2 nanocomposites for the catalytic degradation of methyl orange and methylene blue: An electron relay effect
Journal of Industrial and Engineering Chemistry (2014)
  • Mohammad Mansoob Khan, Dr
  • J. Lee
  • M. H. Cho
Abstract
Au@TiO2 nanocomposites were used for the catalytic degradation of methyl orange and methylene blue by NaBH4. A detail pathway for step by step reduction, oxidation and complete mineralization of intermediates into the respective end-products was established by UV-vis spectroscopy, chemical oxygen demand, ion chromatography and cyclic voltammetry (CV). CV studies confirmed that the dyes were reduced and oxidized to the end-products by NaBH4 in the presence of Au@TiO2 nanocomposites and O2•, •OH and HO2• radicals generated in-situ. Results suggest that Au@TiO2 nanocomposites not only assist in the decolorization of dyes, but also promote their complete mineralization into harmless end-products.
Keywords
  • Au@TiO2 nanocomposites,
  • Electron relay,
  • dye degradation,
  • COD
Publication Date
August 6, 2014
Citation Information
Mohammad Mansoob Khan, J. Lee and M. H. Cho. "Au@TiO2 nanocomposites for the catalytic degradation of methyl orange and methylene blue: An electron relay effect" Journal of Industrial and Engineering Chemistry Vol. 20 (2014)
Available at: http://works.bepress.com/mmansoob_khan/33/