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材料工程  2012 

水热法制备Mo掺杂WO3纳米材料及其光致变色性质的研究

Keywords: WO3纳米材料,掺杂,光致变色,水热法

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Abstract:

WO3是一种多功能半导体材料,光致变色是其重要性质之一。利用单质W和Mo与双氧水之间的反应,加入Na2SO4作为矿化剂,通过水热合成制备出具有新颖结构的六方相Mo掺杂WO3纳米材料。应用SEM,XRD,HRTEM,XPS等检测手段分别对掺杂纳米材料的形貌和尺寸、物相、掺杂成分等进行研究,证明了产物为纯六方相的MoxW1-xO3,并确认了掺杂的成功。通过与纯WO3纳米线对比,所制备的MoxW1-xO3材料所具有的由掺杂导致的带隙改变及其独特的复合纳米结构,都有利于提高电子传递效率,从而使光致变色性能明显提高。

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