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。
The activity of photocatalysts can be improved by the photocatalyst modification, and the spectral response is also enlarged and the utilization of sunlight is enhanced.
为了提高光催化剂的催化性能，许多研究者已经将更多的注意力转移到纳米光催化剂的制备和提高光催化剂的催化活性上来。
To improve the catalytic of material, many research groups have focused their attention on the preparation of the nanometer photocatalyst and improve the activity of photocatalyst.
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。
The photocatalyst modification and fixation are the keys of the industrial application of heterogeneous photocatalysis technology.
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