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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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铋掺杂二氧化钛纳米颗粒的制备及其可见光催化性能
DOI: 10.1016/S1872-2067(14)60124-8, PP. 1578-1589
Keywords: 水热法,铋掺杂,二氧化钛,纳米管钛酸,氧空位,可见光催化
Abstract:
？采用水热法，以纳米管钛酸为前驱物制备了Bi掺杂的TiO2，并利用X射线衍射、透射电子显微镜、X射线光电子能谱、紫外-可见漫反射光谱等手段对样品进行了表征.以甲基橙的光催化降解为模型反应评价了样品的可见光催化性能.结果表明，Bi离子并没有进入TiO2的晶格中，而是以BiOCl的形式存在.所制得的BiOCl/TiO2复合物对甲基橙降解表现出较优越的可见光催化活性；当Bi/Ti摩尔比为1%，水热温度为130℃时，所制催化剂的光催化性能最佳，并对光催化活性提高的机理进行了讨论.同时，该催化剂对4-氯苯酚降解也表现出较高的光催化性能.
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