Systematic Bandgap Engineering of Graphene Quantum Dots and Applications for Photocatalytic Water Splitting and CO2 Reduction

Yibo Yan; Jie Chen; Nan Li; Jingqi Tian; Kaixin Li; Jizhou Jiang; Jiyang Liu; Qinghua Tian; Peng Chen

doi:10.1021/acsnano.8b00498

Systematic Bandgap Engineering of Graphene Quantum Dots and Applications for Photocatalytic Water Splitting and CO₂ Reduction

Yibo Yan, Jie Chen, Nan Li, Jingqi Tian, Kaixin Li, Jizhou Jiang, Jiyang Liu, Qinghua Tian, Peng Chen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

402 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3523-3532
Number of pages	10
Journal	ACS Nano
Volume	12
Issue number	4
DOIs	https://doi.org/10.1021/acsnano.8b00498
Publication status	Published - Apr 24 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 American Chemical Society.

ASJC Scopus Subject Areas

General Materials Science
General Engineering
General Physics and Astronomy

Keywords

bandgap engineering
CO eduction
graphene quantum dots
photocatalysis
photoluminescence
water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsnano.8b00498

Cite this

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abstract = "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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AU - Yan, Yibo

AU - Chen, Jie

AU - Li, Nan

AU - Tian, Jingqi

AU - Li, Kaixin

AU - Jiang, Jizhou

AU - Liu, Jiyang

AU - Tian, Qinghua

AU - Chen, Peng

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AB - 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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