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光沉积法系1978年引进催化领域的新技术。由该法制备的负载型金属催化剂具有低负载量,高分散度,落位有效,条件温和,寿命长等优点,在光催化和电催化中用途很广。以光催化途径代替若干热化学过程可以获得特有的效果。所载的金属组分可能产生:(1)光生载流子电荷分离的增强效应;(2)氧化还原反应的催化效应;以及(3)半导体光谱响应的敏化效应。
Light deposition method 1978 introduction of catalytic technology. The supported metal catalyst prepared by the method has the advantages of low load, high dispersibility, effective dislocation, mild conditions and long service life, and is widely used in photocatalysis and electrocatalysis. The photocatalytic route to replace several thermochemical processes can be unique effects. The metal components contained may produce: (1) enhanced effect of photogenerated charge carrier charge separation; (2) catalytic effect of redox reaction; and (3) sensitization effect of semiconductor spectral response.