我组刘言在Chemical Engineering Journal上发表论文

题目：

Charge storage of carbon dot enhances photo-production of H₂ and H₂O₂ over Ni₂P/carbon dot catalyst under normal pressure

作者：

Yan Liu, Yajie Zhao, Qingyao Wu, Xiao Wang, Haodong Nie, Yunjie Zhou, Hui Huang, Mingwang Shao, Yang Liu *, Zhenhui Kang

单位：

Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China

摘要：

Photo-production of hydrogen (H₂) and hydrogen peroxide (H₂O₂) simultaneously from water catalytic-splitting has received widespread attention. Most photocatalysts suffer from H₂O₂ poisoning and rapid recombination of photogenerated electrons and holes. Although photocatalysts against H₂O₂ poisoning have been prepared, the long-time stability of photogenerated electrons is still a great challenge. Here, we demonstrate that carbon dots (CDs) can stabilize and store the photogenerated electrons, promote the effective separation of photo-generated charges, and improve the photocatalytic activity and stability of the catalyst. The Ni₂P/CDs composite photocatalyst synthesized in this work can produce H₂ and H₂O₂ simultaneously under atmosphere, and the yields of H₂ and H₂O₂ can reach 258.6 μmol/h/g and 1281.4 μmol/h/g, respectively. It represents the highest yield of H₂O₂ ever reported in photocatalysts capable of producing both H₂ and H₂O₂ simultaneously under normal pressure. This work provides some deep insight on the storage and stability of photogenerated electrons, and open up a new way for the high efficient photocatalyst design based on the regulation of the interface charge dynamics.

影响因子：

10.652

分区情况：

1区

链接：  

https://www.sciencedirect.com/science/article/pii/S138589472034300X?via%3Dihub