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Nitrogen-doped graphene oxide quantum dots as photocatalysts for overall water-splitting under visible light
Te-Fu Yeh1, Chiao-Yi Teng, Shean-Jen Chen
1Department of Chemical Engineering and Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan, 70101, Taiwan.
Abstract:
Nitrogen-doped graphene oxide quantum dots exhibit both p- and n-type conductivities and catalyze overall water-splitting under visible-light irradiation. The quantum dots contain p-n type photochemical diodes, in which the carbon sp(2) clusters serve as the interfacial junction. The active sites for H2 and O2 evolution are the p- and n-domains, respectively, and the reaction mimics biological photosynthesis.
