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首页> 外文期刊>Nanotechnology >Biocompatible and freestanding anatase TiO_2 nanomembrane with enhanced photocatalytic performance
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Biocompatible and freestanding anatase TiO_2 nanomembrane with enhanced photocatalytic performance

机译：具有生物相容性和独立性的锐钛矿型TiO_2纳米膜，具有增强的光催化性能

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摘要

Biocompatible and freestanding TiO_2 nanotube membranes with improved photocatalytic activity were fabricated through a water-vapour-assisted annealing treatment at relatively low temperatures. Photoluminescence results and structure characterization prove that the obtained TiO_2 nanotube membranes not only possess an enhanced anatase crystallinity from water molecule-intermediated dissolution-precipitation reactions, but are also covered with abundant hydroxyl groups which are hardly influenced by external disturbances. The anatase crystallinity, the superficial hydroxyl groups and the nanotubular morphology of the membrane treated with water vapour thus lead to enhancement in photocatalytic activity. This new approach is simple and time-saving, opening up new opportunities in various areas, including tissue-engineering, watersplitting, dye-sensitized solar cells and photocatalysis.
机译：通过水蒸气辅助退火处理，在较低的温度下制备了具有光催化活性的生物相容和独立​​的TiO_2纳米管膜。光致发光结果和结构表征证明，所获得的TiO_2纳米管膜不仅具有通过水分子介导的溶解-沉淀反应增强的锐钛矿结晶性，而且还覆盖有几乎不受外界干扰影响的丰富羟基。用水蒸气处理的膜的锐钛矿结晶度，表面羟基和纳米管形貌因此导致光催化活性的增强。这种新方法既简单又省时，为组织工程，水分解，染料敏化太阳能电池和光催化等各个领域带来了新机遇。

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