期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：11
页码：17359
DOI：10.15680/IJIRSET.2014.0311040
出版社：S&S Publications
摘要：In this work, the decolorization of Methyl Orange was conducted using catalysts prepared byimpregnation of copper on natural clay in the presence of H2O2. The catalysts Cu-clay, prepared from the concentratedmetal precursor of (impregnation ratio, W(Cu(NO3)2)/W(clay) = 1,5%–7,5%) were characterized by several methodssuch as X-ray diffraction (XRD), electronic scan microscopy (SEM), x-ray fluorescence (FX), and Brunauer–Emmett–Teller (BET).Important factors affecting catalyst activity and methyl orange removal efficiencies were studied: the effects oftemperature, oxidant concentration, and catalyst dosage. The results showed, a very significant activation of hydrogenperoxide by the catalyst, the Methyl Orange depletion percentage reaching 94 % after 2 h, and very stability of thecatalyst. It was also observed that the best catalyst, at a reaction temperature of 25°C. 2,5ml of H2O2 and 4.0 g/L of 5%Cu-clay, 94% decolorization was achieved within 120 min treatment. Although the Cu show high activity, theirstability and reusability still need improvement.
