Lanthanide-doped TiO2 nanoparticles–modified electrode for photoelectrocatalytic degradation of dye

Authors

  • Li Xing,

    1. State Key Laboratory of Electrochemical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People's Republic of China
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  • Jianbo Jia,

    Corresponding author
    • State Key Laboratory of Electrochemical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People's Republic of China
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  • Yizhe Wang,

    1. State Key Laboratory of Electrochemical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People's Republic of China
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  • Shaojun Dong

    Corresponding author
    • State Key Laboratory of Electrochemical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People's Republic of China
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jbjia@ciac.jl.cn (for correspondence); dongsj@ns.ciac.jl.cn (for correspondence)

Abstract

Lanthanide-doped TiO2 nanoparticles (La-TiO2NP)-modified electrode was successfully prepared by the sol–gel and dip-coating methods on the indium tin oxide electrode. Scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and photoluminescence spectra were used to characterize its structure and composition. The degradation efficiency of methyl orange could be increased by 26.17% with the La-TiO2NP-modified electrode compared with that using the pure TiO2NP-modified electrode under applied voltage of 0.3 V with illumination. The as-prepared electrode also exhibited good repeatability and reproducibility. © 2012 American Institute of Chemical Engineers Environ Prog, 32: 302-306, 2013

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