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

Author(s)
Choi, YuriJeon, DasomChoi, YeongkyuRyu, JungkiKim, Byeong-Su
Issued Date
2018-04
DOI
10.1021/acsami.8b00162
URI
https://scholarworks.unist.ac.kr/handle/201301/23960
Fulltext
https://pubs.acs.org/doi/abs/10.1021/acsami.8b00162
Citation
ACS APPLIED MATERIALS & INTERFACES, v.10, no.16, pp.13434 - 13441
Abstract
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.
Publisher
AMER CHEMICAL SOC
ISSN
1944-8244
Keyword (Author)
photocatalystcarbon nanodotpolyoxometalateself-assemblyoxygen evolution
Keyword
QUANTUM DOTSMOLECULAR CATALYSTSENERGY-CONVERSIONSPLITTING WATERPHOTOCATALYSTEVOLUTIONSTATEPHOTOLUMINESCENCEGENERATIONCOBALT

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