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Title of Journal: Bull Mater Sci

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Abbravation: Bulletin of Materials Science

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Springer India

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DOI

10.1007/bf00922987

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0973-7669

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Preparation and characterization of FeV/TiOSubsc

Authors: Mostafa Feyzi Hamid Reza Rafiee Fataneh Jafari
Publish Date: 2014/11/21
Volume: 37, Issue: 6, Pages: 1375-1382
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Abstract

The FeV/TiO2SiO2 nanocatalyst promoted with zinc is prepared by combination of solgel and wetness impregnation methods The effects of different weight percentages of iron vanadium and zinc titania to silica mole ratio synthesis temperature and heating rate of calcination on the structure and morphology of nanocatalyst are investigated Results showed that the modified nanocatalyst containing 40 wt of Fe 12 wt of V and 2 wt of zinc all on weight percent supported on TiO2SiO2 with synthesis temperature of 45 °C has highest surface area pore volume and pore diameter Characterizations of catalysts were carried out using Xray diffraction XRD Fourier transform infrared FTIR spectrometry scanning electron microscopy SEM vibrating sample magnetometry VSM and N2 physisorption measurements It was found that the nanocatalyst has a particle size about 56 nm and its saturation magnetization factor is equal to 10173 emu/g The catalyst can easily be separated from medium by a magnet

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