期刊
ACS NANO
卷 12, 期 4, 页码 3523-3532出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.8b00498
关键词
graphene quantum dots; bandgap engineering; photocatalysis; photoluminescence; water splitting; CO2 reduction
类别
资金
- AcRF tier 2 grants from Ministry of Education (Singapore) [MOE2014-T2-1-003, MOE2017-T2-2-00S]
Graphene quantum dots (GQDs), which is the latest addition to the nanocarbon material family, promise a wide spectrum of applications. Herein, we demonstrate two different functionalization strategies to systematically tailor the bandgap structures of GQDs whereby making them snugly suitable for particular applications. Furthermore, the functionalized GQDs with a narrow bandgap and intramolecular Z-scheme structure are employed as the efficient photocatalysts for water splitting and carbon dioxide reduction under visible light. The underlying mechanisms of our observations are studied and discussed.
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