Journal
ULTRASONICS SONOCHEMISTRY
Volume 28, Issue -, Pages 150-160Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2015.07.008
Keywords
Sonochemical synthesis; Nanophotocatalyst; Hydrodynamic cavitation; Hybrid advanced oxidation process; Waste water treatment
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Funding
- Ministry of Environment and Forest (MoEF, Govt of India) [10-1/2010-CT (WM)]
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In this article, an acoustic cavitation engineered novel approach for the synthesis of TiO2, cerium and Fe doped TiO2 nanophotocatalysts is reported. The prepared TiO2, cerium and Fe doped TiO2 nanophotocatalysts were characterized by XRD and TEM analysis to evaluate its structure and morphology. Photo catalytic performance of undoped TiO2 catalyst was investigated for the decolorization of crystal violet dye in aqueous solution at pH of 6.5 in the presence of hydro dynamic cavitation. Effect of catalyst doping with Fe and Ce was also studied for the decolorization of crystal violet dye. The results shows that, 0.8% of Fe-doped TiO2 exhibits maximum photocatalytic activity in the decolorization study of crystal violet dye due to the presence of Fe in the TiO2 and it may acts as a fenton reagent. Kinetic studies have also been reported for the hybrid AOP (HAOP) that followed the pseudo first-order reaction kinetics. (C) 2015 Elsevier B.V. All rights reserved.
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