康振辉教授课题组、邵名望教授课题组、刘阳教授课题组合作在Nat. Commun.上发表论文

发布时间:2021-04-25访问量:408设置

题目:

A metal-free photocatalyst for highly efficient hydrogen peroxide photoproduction in real seawater

作者:

Qingyao Wu,1 Jingjing Cao,1 Xiao Wang,1 Yan Liu,1 Yajie Zhao,1 Hui Wang,1 Yang Liu,1,* Hui Huan,1 Fan Liao,1 Mingwang Shao,1,* Zhenghui Kang1,2,*

单位:

1Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123 Suzhou, PR China

2Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, 999078 Macau SAR, China

摘要:

Artificial photosynthesis of H2O2 from H2O and O2, as a spotless method, has aroused widespread interest. Up to date, most photocatalysts still suffer from serious salt-deactivated effects with huge consumption of photogenerated charges, which severely limit their wide application. Herein, by using a phenolic condensation approach, carbon dots, organic dye molecule procyanidins and 4-methoxybenzaldehyde are composed into a metal-free photocatalyst for the photosynthetic production of H2O2 in seawater. This catalyst exhibits high photocatalytic ability to produce H2O2 with the yield of 1776 μmol g−1 h−1 (λ ≥ 420 nm; 34.8 mW cm−2) in real seawater, about 4.8 times higher than the pure polymer. Combining with in-situ photoelectrochemical and transient photovoltage analysis, the active site and the catalytic mechanism of this composite catalyst in seawater are also clearly clarified. This work opens up an avenue for a highly efficient and practical, available catalyst for H2O2 photoproduction in real seawater.

影响因子:

12.121

分区情况:

一区

链接:

https://www.nature.com/articles/s41467-020-20823-8.pdf


责任编辑:向丹婷

返回原图
/