Hydrothermal Preparation and Performance of CeO2-TiO2 Micro- and Nano-composites Deposited on Copper Mesh Film

doi:10.7503/cjcu20130327

Abstract

Abstract:

CeO₂-TiO₂ micro- and nano-composites deposited on copper mesh film[(CeO₂-TiO₂)/Cu] were prepared with tetrabutyl titanate and cerium nitrate as raw materials, trisodium phosphate as mineralizer via one step facile hydrothermal method. The prepared materials were characterized by scanning electron microscopy(SEM), X-ray diffraction(XRD) and UV-Vis diffusion reflection spectrometry. The water wettabi-lity was tested using contact angle meter. Visual-light-activation of (CeO₂-TiO₂)/Cu was investigated by degrading methylene blue(MB, 20 μmol/L) under visible light irradiation. The results suggested that anatase TiO₂ dioxide and cerianite CeO₂ were prepared; compared with TiO₂, CeO₂ was easier to deposit on copper mesh film; the morphologies and structures of (CeO₂-TiO₂)/Cu were significantly affected by Ce(NO₃)₃·6H₂O content, Na₃PO₄ concentration, reaction time and reaction temperature. (CeO₂-TiO₂)/Cu displayed superhydrophilic property and visual-light photocatalytic performance.

Key words: Copper mesh, Cerium dioxide-titanium dioxide, Hydrothermal method, Morphology, Superhydrophilicity, Visual-light photocatalysis

CLC Number:

TrendMD:

DAI Chun-Ai, GAO Chang-Rui, FENG Lin. Hydrothermal Preparation and Performance of CeO₂-TiO₂ Micro- and Nano-composites Deposited on Copper Mesh Film[J]. Chem. J. Chinese Universities, 2013, 34(9): 2057.

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Hydrothermal Preparation and Performance of CeO₂-TiO₂ Micro- and Nano-composites Deposited on Copper Mesh Film

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