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首页> 外文期刊>Crystal growth & design >Nanocrystalline Titania Made from Interactions of Ti with Hydrogen Peroxide Solutions Containing Tantalum Chloride
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Nanocrystalline Titania Made from Interactions of Ti with Hydrogen Peroxide Solutions Containing Tantalum Chloride

机译：钛与含氯化钽的过氧化氢溶液相互作用制得的纳米晶二氧化钛

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摘要

Crystalline titania film and powders with crystallite size in the range of nanometers are of great interest in the fields of optical devices, gas sensors, catalysts, and biomaterials. This paper reports a soft solution approach to prepare crystalline titania. After Ti was soaked in hydrogen peroxide solutions containing 3.0 mM tantalum chloride at 80 ℃ for 3 days, crystalline titania films consisting of anatase and rutile were deposited on Ti substrates. While Ti was soaked in tantalum-free hydrogen peroxide solution followed by aging in hydrogen peroxide solution containing tantalum ions, titania films with well-crystallized anatase were obtained. The crystalline titania resulted from crystallization of the previously deposited amorphous gel. Addition of tantalum ions in hydrogen peroxide solutions helps to obtain the crystalline titania and favors especially the formation of rutile phase.
机译：在光学器件，气体传感器，催化剂和生物材料领域中，具有纳米尺寸的结晶二氧化钛薄膜和粉末引起了人们的极大兴趣。本文报道了一种软溶液制备二氧化钛的方法。在80℃下将Ti浸入含3.0 mM氯化钽的过氧化氢溶液中3天后，将由锐钛矿和金红石组成的结晶二氧化钛膜沉积在Ti基板上。将Ti浸泡在无钽的过氧化氢溶液中，然后在含有钽离子的过氧化氢溶液中老化时，获得具有良好结晶锐钛矿的二氧化钛膜。结晶二氧化钛是由先前沉积的无定形凝胶的结晶产生的。在过氧化氢溶液中添加钽离子有助于获得结晶二氧化钛，尤其有利于金红石相的形成。

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