摘要
An emerging S-scheme photocatalyst consisting of Ni-doped Zn_(0.2)Cd_(0.8)S quantum dots and TiO_(2)micro-spheres has been reported to show excellent H2 production performance and high benzylidene benzy-lamine evolution efficiency.To monitor the charge transfer dynamics in this S-scheme heterojunction,femtosecond transient absorption spectroscopy measurements are conducted.The charge transfer kinetic analysis confirms that S-scheme heterojunction promotes interfacial electron transfer and accelerates hole consumption.This work provides an in-depth explanation for the enhanced photocatalytic performance of S-scheme photocatalysts from the perspective of charge dynamics.
基金
supported by the National Natural Science Foun-dation of China(No.52202375)
the International Postdoctoral Ex-change Fellowship Program(No.PC2022051)
the China Post-doctoral Science Foundation(Nos.2021TQ0311 and 2021M702990).
