我组郭峰在Applied Catalysis B: Environmental上发表论文

题目：

CoO and g-C3N4 complement each other for highly efficient overall water splitting under visible light

作者：

Feng Guo^a,b , Weilong Shi^a,c , Cheng Zhu^a , Hao Li^a , Zhenhui Kang^a,⁎

单位：

^aJiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, PR China

^bKey Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Environmental Science and Engineering, Chang’an University, Xi’an, 710064, PR China

^cSchool of Physics, Huazhong University of Science and Technology, Wuhan, 430074, PR China

摘要：

Photocatalytic hydrogen production from overall water splitting is a clean and renewable technology that can convert solar energy into chemical energy, for which developing an efficient and stable photocatalyst has been the central scientific topic. Herein, CoO/g-C₃N₄ heterojunction photocatalysts were fabricated through a facile solvothermal method for overall water splitting. Simultaneous evolution of H₂ and O₂ from pure water with the stoichiometric ratio of about 2:1 achieved with all the CoO/g-C₃N₄ heterojunctions as catalysts under visible light irradiation. Among of them, 30 wt.% CoO/g-C₃N₄ with H₂ evolution rate of 2.51 μmol/h and O2 evolution rate of 1.39 μmol/h also exhibited remarkably higher photocatalytic performance and stability (over 15 cycles) than single CoO or g-C₃N₄. This enhanced photocatalytic activity of CoO/g-C₃N₄ heterojunction can be ascribed to the synergistic effect of junction and interface formed between CoO and g-C₃N₄. In addition, the sufficient long lifetime stability of CoO/g-C₃N₄ comes from the complementary advantages effect between CoO and g-C₃N₄, as is proved, CoO can protect g-C₃N₄ from H₂O₂ poisoning, and simultaneously the photo-induced heat from CoO during the photocatalytic process responsible for the rapid deactivation can be timely conducted to g-C₃N₄.

影响因子：

16.683

分区情况：

1区

链接：  

https://www.sciencedirect.com/science/article/pii/S0926337317312158