我组吴清瑶在Nature Communications上发表论文
A metal-free photocatalyst for highly efficient hydrogen peroxide photoproduction in real seawater | |
作者: | Qingyao Wu1, Jingjing Cao1, Xiao Wang1, Yan Liu1, Yajie Zhao1, Hui Wang1, Yang Liu1, Hui Huang1, Fan Liao1, Mingwang Shao1 & Zhenghui Kang 1,2 |
单位: | 1 Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123 Suzhou, PR China. 2 Macau Institute of Materials Science and Engineering, Macau University of Science and Technology, Macau, 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−1h−1 (λ ≥ 420 nm; 34.8mWcm−2) in real seawater, about 4.8 times higher than the pure polymer. Combining with in-situ photoelectrochemical and transient photovoltage ****ysis, the active site and the catalytic mechani** 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: | 1区 |
链接: | https://www.nature.com/articles/s41467-021-21490-z |