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Enhancement of TiO2 behavior on photocatalytic oxidation of MO dye using TiO2/AC under visible irradiation and sunlight radiation
National Research Center, Water Pollution Control Department, National Research Center, El Buhouth Street, P.O. Box 12311, Dokki, Cairo, Egypt.
Chemical Engineering and Pilot Plant Department, National Research Centre, Egypt.
Surface Chemistry and Catalysis Laboratory, National Research Centre, Egypt.
Surface Morphology and Elemental Analysis Department, Nuclear Material Authority, Egypt.
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2012 (English)In: Separation and Purification Technology, ISSN 1383-5866, E-ISSN 1873-3794, Vol. 98, p. 270-279Article in journal (Refereed) Published
Abstract [en]

The activated carbon loaded TiO2 photocatalyst was prepared and characterized by FT-IR, scanning electron micrograph (SEM) and X-ray diffraction (XRD). The photocatalytic efficiency of activated carbon loaded TiO2 was evaluated by photocatalytic oxidation of Methyl Orange (MO) dye in aqueous medium using visible and solar light. TiO2/AC exhibited higher photocatalytic oxidation efficiency of MO than that of naked TiO2. The various experimental parameters like initial dye concentration, amount of catalyst and solution pH for efficient dye degradation are investigated. Activity measurements performed under visible light and solar irradiation have shown good results for the photo degradation of MO in aqueous solution. The higher efficiency of TiO2/AC is due to synergy effect of activated carbon. Addition of high adsorption capacity activated carbon to photoactive titanium dioxide in photocatalytic degradation of dyes improves the efficiency of dye mineralization. The present catalysts show high adsorptivity and high photoactivity for the degradation of the MO dye and can be very easily separated from the solution by sedimentation or simple filtration and it can be used repeatedly for MO removal with preservation of its photoactivity.

Place, publisher, year, edition, pages
2012. Vol. 98, p. 270-279
Keywords [en]
TiO/AC, MO, Degradation, Adsorption, Photocatalysis
National Category
Physical Chemistry
Research subject
Chemistry with specialization in Physical Chemistry; Chemistry with specialization in Materials Chemistry; Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-346272DOI: 10.1016/j.seppur.2012.06.018ISI: 000311247500036OAI: oai:DiVA.org:uu-346272DiVA, id: diva2:1190945
Funder
Swedish Research Council, 348-2008-6075Available from: 2018-03-16 Created: 2018-03-16 Last updated: 2018-03-16Bibliographically approved

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Österlund, Lars

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