我组李嘉诚在Applied Catalysis B: Environment上发表论文

题目：

Interaction of metal ions in high efficiency seawater hydrogen peroxide production by a carbon-based photocatalyst

作者：

Jiacheng Li,[a]Hong Shi,[a]Zenan Li,[a]Jiaxuan Wang,[a]Honglin Si,[a]Fan Liao,[a]*Hui Huang,[a]*Yang Liu,[a]*Zhenhui Kang,[a,b]*

单位：

[a] Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, People’s Republic of China.

[b]Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa 999078, Macao.

摘要：

Photocatalytic seawater splitting is a promising method for producing hydrogen peroxide (H₂O₂). However, the presence of metal ions usually deactivates catalysts and causes undesirable reactions, highlighting the need for deeply understanding these interactions. Herein, a carbon-based composite photocatalyst (CQM) is fabricated for photocatalytic production of H₂O₂. The metal ions strongly affect the photocatalytic activity of the CQM catalyst with order of Mg²⁺> Al³⁺> Ca²⁺> K⁺, consistent with the surface effective electron concentration calculated from transient photovoltage (TPV) technology. Notably, with the presence of Mg²⁺at 0.36 mol L⁻¹, the H₂O₂yield is 12,812μmol g⁻¹h⁻¹. Under the guidance of machine learning, the H₂O₂yield is further improved to 19,560μmol g⁻¹h⁻¹by adjusting the concentration of multiple ions. Significantly, in a real seawater system, the photoproduction of H₂O₂on CQM reaches up to a recorded value of 11306μmol g⁻¹h⁻¹under visible light illumination.

影响因子：

22.1

分区情况：

1区

链接：

https://www.sciencedirect.com/science/article/pii/S0926337323011840