Synthesis of Silver-Modified Sponge-Like Titanium Dioxide Arrays with Biomimetic Structure and its Enhanced Photocatalytic
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/TiO2 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 TiO2 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.
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Y. J. Lu et al., "Synthesis of Silver-Modified Sponge-Like Titanium Dioxide Arrays with Biomimetic Structure and its Enhanced Photocatalytic", Applied Mechanics and Materials, Vols. 117-119, pp. 824-828, 2012