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Sn/Cu-TiO2 nanoparticles produced via sol-gel method: Synthesis, characterization, and photocatalytic activity

  • Physical Chemistry of Nanoclusters and Nanomaterials
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Abstract

TiO2 and Sn/Cu-TiO2 nanoparticles with different Sn/Cu contents have been synthesized and characterized by different analysis methods such as XRD, TEM, and BET. Sn/Cu-TiO2 was preferential to TiO2 with 2,5-fold increase in photodegradation rate of different types of dyes such as methyl orange, methylene blue and methyl red. This activity was relevant to the influences of co-doping on the physicochemical properties and surface interfacial charge transfer mechanisms. An optimum synergetic effect was found for a mass ratio of Sn/TiO2 equal to 0.75% and Cu/TiO2 equal to 0.5%. The degradation reaction fit well to a Langmuir-Hinshelwood kinetic model indicating the reaction rate is depended on initial adsorption step.

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Authors and Affiliations

  1. Department of Chemistry, Payame Noor University, PO BOX, Tehran, 19395-3697, Iran

    R. Mohammadi & B. Massoumi

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  1. R. Mohammadi
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  2. B. Massoumi
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Correspondence to R. Mohammadi.

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Mohammadi, R., Massoumi, B. Sn/Cu-TiO2 nanoparticles produced via sol-gel method: Synthesis, characterization, and photocatalytic activity. Russ. J. Phys. Chem. 88, 1184–1190 (2014). https://doi.org/10.1134/S0036024414070243

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  • DOI: https://doi.org/10.1134/S0036024414070243

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