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

Yuri Choi, Dasom Jeon, Yeongkyu Choi, Jungki Ryu, Byeong Su Kim

Research output: Contribution to journalArticle

17 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)13434-13441
Number of pages8
JournalACS Applied Materials and Interfaces
Volume10
Issue number16
DOIs
Publication statusPublished - 2018 Apr 25

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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