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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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具有高可见光催化活性的Ti3+和碳共掺杂改性的TiO2光催化剂
DOI: 10.1016/S1872-2067(14)60093-0, PP. 1511-1519
Keywords: 真空活化法,Ti3+掺杂,石墨负载,二氧化钛,光催化
Abstract:
？以乙醇为碳源，采用操作简单的真空活化法一步实现对TiO2的Ti3+与C的共掺杂改性，TiO2用X衍线衍射、紫外-可见光谱、顺磁共振、X射线光电子能谱和红外光谱等手段表征了催化剂的结构、组成、光学性质.结果表明，经Ti3+与C共掺杂改性后的催化剂表现出高的可见光降解甲基橙活性.复合在催化剂表面的石墨可以增强催化剂对可见光的响应范围，而Ti3+与氧缺陷形成的掺杂能级则可以提高光生电子的迁移效率.实验表明，两者之间的协同作用促进了其可见光催化活性的提高.
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