青岛科技大学  English 
朱海光
赞  

副教授

教师拼音名称:zhuhaiguang

电子邮箱:

学历:博士研究生

职称:副教授

毕业院校:苏州大学

手机版

访问量:

最后更新时间:..

Ligand engineering of Au nanoclusters with multifunctional metalloporphyrins for photocatalytic H2O2 production

关键字:CLUSTER; TRANSITION

摘要:Ultrasmall metal nanoclusters (NCs) are promising in various photocatalytic applications, but usually suffer from fast recombination of charge carriers, insufficient active sites, and difficult diffusion of substrates onto active sites. Herein, we report the design of a Au NC-based photocatalyst for photocatalytic hydrogen peroxide (H2O2) production based on the ligand engineering of Au NCs with porphyrin cobalt (Co-TCPP). Besides enhancing the visible light absorption of Au NCs, the grafted Co-TCPP molecules on the Au NC surface could serve as electron acceptors, which not only efficiently promote charge carrier separation of Au NCs, but also provide abundant active sites for photocatalysis. On this basis, the as-designed Au NC-based photocatalyst showed excellent photocatalytic performance in H2O2 production (up to 235.93 mu M), outperforming most previously reported semiconductor photocatalysts. In addition, the mechanistic study revealed that the photocatalytic H2O2 production over the Au NC-based photocatalyst mainly follows a two-electron O-2 reduction pathway. This study is attractive as it demonstrated the design of the high-performance Au NC-based photocatalyst via ligand engineering, increasing the acceptance of metal NCs for photocatalytic applications.

卷号:10

期号:15

是否译文:

崂山校区 - 山东省青岛市松岭路99号   
四方校区 - 山东省青岛市郑州路53号   
中德国际合作区(中德校区) - 山东省青岛市西海岸新区团结路3698号
高密校区 - 山东省高密市杏坛西街1号   
济南校区 - 山东省济南市文化东路80号©2015 青岛科技大学    
管理员邮箱:master@qust.edu.cn