Highly efficient photosynthesis of hydrogen peroxide in ambient conditions
Yu‐Xin Ye, Jinhui Pan, Fangyan Xie, Li Gong, Siming Huang, Zhuofeng Ke, Fang Zhu, Jianqiao Xu, Gangfeng Ouyang
Abstract
in pure water and open air is achieved by using a Z-scheme heterojunction, which outperforms almost all reported photocatalysts under the same conditions. An extensive study at the atomic level demonstrates that Z-scheme electron transfer is realized by improving the photoresponse of the oxidation semiconductor under visible light, when the difference between the Fermi levels of the two constituent semiconductors is not sufficiently large. Moreover, it is verified that a type II electron transfer pathway can be converted to the desired Z-scheme pathway by tuning the excitation wavelengths. This study demonstrates a feasible strategy for developing efficient Z-scheme photocatalysts by regulating photoresponses.