可见光响应范围窄和量子效率低是导致TiO<,2>纳米管光催化活性低的两个主要因素,而用微量的金属元素取代TiO<,2>晶格里的钛,通过调整其能带结构,改变电子-空穴复合率和界面电子转移速度,可提高TiO<,2>在可见光下的催化活性.综述了近年来利用金属掺杂提高光催化效率的研究成果,并指出目前存在的问题,对今后的研究提出了展望.
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