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基于表面光伏效应测得的表面光电压谱在半导体表面化学物理的研究中早已获得极为广泛的应用。近年来,我们实验室成功地将这一技术应用于复相光催化的研究中,如发现表面光伏信号是半导体多晶粉末光催化剂具有活性的必要条件,光电压信号愈强光催化活性愈高,而且二者存在半定量的关系。这些结果启发我们,表面光伏技术有可能发展成为一种快速评估光催化剂的有效方法。鉴于超微粉光催化性能的研究具有很重要的
Surface photovoltage measurements based on surface photovoltage have long been used in the study of chemical and physical surfaces of semiconductors. In recent years, our laboratory successfully applied this technology to the study of complex phase photocatalysis. It is found that the surface photovoltaic signal is a necessary condition for the activity of the semiconductor polycrystalline powder photocatalyst. The higher the photo-voltage signal is, the higher the photocatalytic activity is , But there is a semi-quantitative relationship between the two. These results inspire us that surface photovoltaics is likely to evolve into an efficient way to quickly evaluate photocatalysts. In view of the superfine powder catalytic properties of research is very important