Photocatalytic Activity of Sm, Zr Co-Doped TiO2 Synthesized by Ultrasonic Assisted Sol-Gel Method

Xi Ming Luo; Fen Fen Li; Hong Tao Gao

doi:10.4028/www.scientific.net/AMR.631-632.399

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The Study on Ultrafine Explosives’ Sensitivity
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Photocatalytic Activity of Sm, Zr Co-Doped TiO₂ Synthesized by Ultrasonic Assisted Sol-Gel Method
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Effects of the Morphology and Distribution of Ferrite and Martensite on Mechanical Properties of Dual-Phases Steel
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Determination of 2A16 Constitutive Model
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Explorative Study and Prediction of Overtempering Region of Disc Heated by Induction Process Using 2D Axisymmetric Model and Experimental Tests
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Effect of Heat Treatment to Twin-Wire Arc Spraying Ni-5wt.%Al Coating on 6061-T6 Aluminum Alloy Diffusion
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 631-632Photocatalytic Activity of Sm, Zr Co-Doped TiO2...

Photocatalytic Activity of Sm, Zr Co-Doped TiO₂ Synthesized by Ultrasonic Assisted Sol-Gel Method

Abstract:

Sm, Zr doped nanocrystalline TiO2 powers were prepared successfully by a facile ultrasonic assisted sol-gel method. The products were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. X-ray diffraction peaks could be assigned to anatase TiO2, which confirms the crystallinity of the as-prepared samples. The SEM images demonstrated that the crystalinity is formed with spherical aggregates with average diameters ranging from 10 to 20 nm. The photocatalytic activity was studied on the photocatalytic degradation of methyl orange (MO) aqueous solution irradiated with UV-visible light. Under UV-visible light irradiation, the photocatalytic performances of the doped samples were much better than that of pure TiO2, and the co-dopant showed highest. It demonstrated that a strong Sm-Zr synergistic interaction might play a decisive role in driving the excellent photocatalytic performance of TiO2.