Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 16, Pages 8363-8376Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b00448
Keywords
quantum dots; carbon dots; graphene quantum dots; photocatalysts; CO2 photoreduction; water-splitting
Funding
- Air Force Office of Scientific Research
- Air Force Research Laboratory
- National Science Foundation
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0967423] Funding Source: National Science Foundation
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Quantum dots (QDs) generally refer to nanoscale particles of conventional semiconductors that are subject to the quantum-confinement effect, though other nanomaterials of similar optical and redox properties are also named as QDs even in the absence of strictly,defined quantum confinement. Among such nanomaterials that have attracted tremendous recent interest are carbon dots, which ate small carbon nanoparticles with some form of surface passivation, and graphene quantum dots in various configurations. In this article, we highlight these carbon-based QDs by focusing on their syntheses, on their photoexcited state properties and redox processes, and on their applications as photocatalysts in visible-light carbon dioxide reduction and in water-splitting, as well as on their mechanistic similarities and differences.
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