Synthesis, Characterization of Pr-TiO2 Nanoparticles and their Photocatalytic Mechanism

Feng Ping Huang; Ying Ge Fan; Jing Jing Sun

doi:10.4028/www.scientific.net/AMR.557-559.497

Paper Titles

Preparation of Carbon Nanotube / Polymer Composites
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The Microcapsules Production by Supercritical Fluid Impinging Technology Combines with Fluidized Bed
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Hydrothermal Synthesis of Tetragonal Phase CuInS₂ Nanoparticles
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Preparation and Damping Properties of Cups-Stacked Carbon Nanotubes(CSCNTs)/Prime 20
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Synthesis, Characterization of Pr-TiO₂ Nanoparticles and their Photocatalytic Mechanism
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Effect of Mechanical Stresses on Coercive Force and Saturation Remanence of Ensemble of Dual-Phase Interacting Nanoparticles
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The Interfacial Cohesive Law of Composite for Carbon Nanotubes and Single Crystal Metals
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Advances in Model Development for Carbon Nanotube Assembly by Dielectrophoresis
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Study on Ni Nanowires Prepared in AAO Template
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Synthesis, Characterization of Pr-TiO₂ Nanoparticles and their Photocatalytic Mechanism

Abstract:

The Pr-TiO₂ photocatalyst samples were prepared by sol-gel method for improving the photocatalytic activity of TiO₂. The resulting materials were analyzed by XRD, SEM, TEM, and XPS. The photocatalytic activity of the catalysts was evaluated by degradation of methyl orange under UV irradiation. It was found Pr doping retard the growth of crystalline size and the phase transformation from anatase to rutile. Praseodymium doping could bring about remarkable improvement in the photoactivity. This high activity was attributed to produce the lattice distortion and inhibit efficiently of the recombination of the electron-hole by Pr³⁺.