Self-Assembled Supramolecular Hybrid of Carbon Nanodots and Polyoxometalates for Visible-Light-Driven Water Oxidation

被引：44
作者：
Choi, Yuri [1 ]
Jeon, Dasom [2 ]
Choi, Yeongkyu [1 ]
Ryu, Jungki [2 ]
Kim, Byeong-Su [1 ,2 ]
机构：
[1] UNIST, Dept Chem, Ulsan 44919, South Korea
[2] UNIST, Dept Energy Engn, Ulsan 44919, South Korea
来源：
ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 16期
基金：
新加坡国家研究基金会;
关键词：
photocatalyst; carbon nanodot; polyoxometalate; self-assembly; oxygen evolution; QUANTUM DOTS; MOLECULAR CATALYSTS; ENERGY-CONVERSION; SPLITTING WATER; PHOTOCATALYST; EVOLUTION; STATE; PHOTOLUMINESCENCE; GENERATION; COBALT;
D O I：
10.1021/acsami.8b00162
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Water splitting is considered the most attractive pursuit in the field of solar energy conversion. In this study, we report the synthesis and application of a supramolecular hybrid of carbon nanodot (CD) and cobalt polyoxometalate (Co-POM) to solar water oxidation. The self-assembly of the alginate-based CD and Co-POM led to the formation of a spherical hybrid of CD/Co-POM. Owing to the facile transfer of photogenerated holes from CD under visible light irradiation, the hybrid donor acceptor type of CD/Co-POM enabled the rapid scavenging of holes and accumulation of a long-lived oxidation state of Co-POM for efficient solar water oxidation, outperforming conventional [Ru(bpy)(3)](2+)-based systems. We believe that this study offers new insights into the development of CD-based nanocomposites with various photocatalytic and optoelectronic applications.
引用
收藏
页码：13434 / 13441
页数：8
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