Chemical engineering department, Sahand University of Technology, Tabriz, I.R. Iran Nanostructure material research center (NMRC), Sahand University of Technology, Tabriz, I.R. Iran
Abstract
The effect of ethanol-water media on the synthesis of Ag/TiO2 nanocomposite was investigated with 0.05, 0.1 and 0.5 (wt.%) of Ag content. Ethanol was used as hole-scavenger enhancing the photodecomposition of Ag+ ions under illumination of near-UV light. The nanocomposites were further calcined to 300˚C and 400˚C under controlled atmosphere. The synthesized nanocomposites were tested for photocatalytic efficiency decomposing formic acid as an organic pollutant under irradiation of a 4W near UV lamp with lmax at 365nm and the results were compared with that of non-modified commercially available Degussa TiO2 (P25). The synthesized nanocomposites were characterized using XRD and SEM micrographs. The photocatalytic studies have revealed a constant overall performance for all synthesized nanocomposites. The initial rate of decomposition was observed to increase with decreasing Ag content, in the case of 0.05 wt.% having the best initial rate. Calcination of the nanocomposites was found to have activating properties on the synthesized nanocomposites where nanocomposite with 0.05 (wt.%) Ag content calcined at 300°C was distinctively advantageous overother calcined nanocomposites.
Pipelzadeh, E., Valizadeh Derakhshan, M., Babaluo, A. A., Haghighi, M., & Tavakoli, A. (2011). Formic Acid Decomposition Using Synthesized Ag/TiO2 Nanocomposite in Ethanol-Water Media Under Illumination of Near UV Light. International Journal of Nanoscience and Nanotechnology, 7(2), 78-86.
MLA
E. Pipelzadeh; M. Valizadeh Derakhshan; A. A. Babaluo; M. Haghighi; A. Tavakoli. "Formic Acid Decomposition Using Synthesized Ag/TiO2 Nanocomposite in Ethanol-Water Media Under Illumination of Near UV Light". International Journal of Nanoscience and Nanotechnology, 7, 2, 2011, 78-86.
HARVARD
Pipelzadeh, E., Valizadeh Derakhshan, M., Babaluo, A. A., Haghighi, M., Tavakoli, A. (2011). 'Formic Acid Decomposition Using Synthesized Ag/TiO2 Nanocomposite in Ethanol-Water Media Under Illumination of Near UV Light', International Journal of Nanoscience and Nanotechnology, 7(2), pp. 78-86.
VANCOUVER
Pipelzadeh, E., Valizadeh Derakhshan, M., Babaluo, A. A., Haghighi, M., Tavakoli, A. Formic Acid Decomposition Using Synthesized Ag/TiO2 Nanocomposite in Ethanol-Water Media Under Illumination of Near UV Light. International Journal of Nanoscience and Nanotechnology, 2011; 7(2): 78-86.
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