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  • Title: Photocatalytic degradation of Acid Red 88 using Au-TiO(2) nanoparticles in aqueous solutions.
    Author: Sathish Kumar PS, Sivakumar R, Anandan S, Madhavan J, Maruthamuthu P, Ashokkumar M.
    Journal: Water Res; 2008 Dec; 42(19):4878-84. PubMed ID: 18945469.
    Abstract:
    Metal loaded semiconductors in general possess greater photocatalytic activity than pure semiconductors. Hence, with an attempt to achieve higher photocatalytic activity, Au-TiO(2) photocatalysts were prepared by deposition-precipitation method and used for the photocatalytic degradation of an azo dye (Acid Red 88; AR88). The materials were characterized by different analytical techniques. A possible mechanism for the photocatalytic degradation of AR88 by Au-TiO(2) in the absence and presence of other oxidizing agents (peroxomonosulfate (PMS), peroxodisulfate (PDS) & hydrogen peroxide (H(2)O(2))) has been proposed. The extent of mineralization of the target pollutant was also evaluated using Total Organic Carbon (TOC) analysis.
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