我组曹静静在Applied Catalysis B: Environmental上发表论文

题目：

In-situ photovoltage transients assisted catalytic study on H₂O₂ photoproduction over organic molecules modified carbon

nitride photocatalyst

作者：

Jingjing Cao, Qingyao Wu, Yajie Zhao, Kaiqiang Wei, Yi Li, Xiao Wang, Fan Liao, Hui Huang, Mingwang Shao*, Yang Liu*, Zhenhui Kang*

单位：

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials

(FUNSOM), Soochow University, 199 Ren’ai Road, Suzhou 215123, Jiangsu, People’s Republic of China

摘要：

Artificial photocatalysis holds great promise for the production of cheap and clean H₂O₂. Therefore, it is emerging interest to develop metal-free photocatalysts due to their adjustable band gap, wide spectral response range and cheap. Here, we demonstrated the high efficient H₂O₂  photoproduction of 833 μ mol g⁻¹ h⁻¹ (18.41μ mol m^-2 h⁻¹) with terephthalic acid modified carbon nitride (PTA_0.6/CN) hybrids as catalysts, which was 13.6 times (20.92 times) higher than that of pristine carbon nitride. The apparent quantum efficiency (QE) is up to 0.67 % (at λ =420 nm). Notably, with the assistance of in-situ transient photovoltage (TPV) ****ysis, the catalytic mechani**, catalytic kinetics and optimized reaction conditions were determined in this alluring approach. These in-situ TPV tests and ****ysis offered a thermodynamic-kinetic model, which showed the great capability to directly extract the half reaction rate, electron transfer number and catalytic activities without carrying out complex parallel, contrast and optimal experiments. This study not only provides a new model system for exploring photoelectric interface, thermodynamic and kinetic properties of catalysts, but also opens up opportunities for the design of next-generation high-performance photocatalysts.

影响因子：

16.683

分区情况：

1区

链接：  

https://www.sciencedirect.com/science/article/pii/S0926337320312340