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Lu Y.,Center for Optoelectronic Materials | Mei J.,Center for Optoelectronic Materials | Dong W.,Center for Optoelectronic Materials | Fu J.,Center for Optoelectronic Materials | Li C.,Center for Optoelectronic Materials
Applied Mechanics and Materials | Year: 2012

The silver-modified sponge-like titanium dioxide arrays were prepared by a hydrothermal method. The effects of the hydrothermal reaction temperature, template agents were studied. The obtained products of Ag/TiO 2 arrays were investigated by scanning electron microscope in combination with X-ray diffraction. Results show that polyvinylpyrrolidone plays a key role in the formation of titanium dioxide arrays. Compare to the commercial P25 (Degussa), the optimized TiO 2 array-structures exhibit an obvious enhanced photocatalytic activity, that enhancement is attributed to its sponge-like biomimetic structure and silver modification. The products have potential applications in degrading organic pollutants. Source

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