准确解析光生电荷Z型转移和传递的机制是构筑高效全固态Z型光催化体系的关键所在。本项目的重点是利用表面光电压技术探测全固态Z型光催化体系中光生电荷分离，转移和传递行为特性和光生电荷界面转移和传递的驱动力；结合光生电荷定向转移和传递阻力的测量，全面准确解析全固态Z型光催化体系的光生电荷Z型转移和传递的微观作用机制，完善探测光生电荷Z型转移和传递微观作用机制的技术及模型。再利用结构和界面调控的手段实现光生电荷Z型转移和传递过程的调控，构筑高效的光生电荷Z型转移和传递的界面，并设计制备高效的全固态Z型光催化体系。

The understanding of photo-generated charge carrier transfer mechanisms in all-solid-state Z-scheme photocatalytic systems is the key factor in the construction of a high-efficiency system. In this work, we highlight the detecting of the photo-generated charge carrier transfer processes and the driving force by using surface photovoltage techniques. At the same time, the resistance of photo-generated charge carrier transfer has been measured. With a deep understanding of photo-generated charge carrier transfer mechanisms, a more perfect technology and model of probing into photo-generated charge carrier transfer mechanisms can be made. At last, by means of the interface engineering, we can design an all-solid-state Z-scheme photocatalytic system with a high-efficiency.