提高光催化剂的光催化活性及将光催化剂固定是多相光催化技术能否工业化应用的关键.单一半导体光催化剂的光催化活性一般都不高,通过改性可以提高光催化活性甚至在提高活性的同时扩展光谱响应范围,提高太阳光的利用率.而光催化剂的固定则可免却光催化剂的分离回收以及消除粉末悬浮体系中存在的易聚集、流失等缺点.
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