Fabrication of Nitrogen-Doped Graphene Quantum Dots-Cu2O Catalysts for Enhanced Photocatalytic Hydrogen Evolution

Yilin Wu; Ming Yan; Jia Gao; Peng Lv; Xinlin Liu; Chunxiang Li; Yongsheng Yan

doi:10.1142/S1793292018500996

Fabrication of Nitrogen-Doped Graphene Quantum Dots-Cu₂O Catalysts for Enhanced Photocatalytic Hydrogen Evolution

Yilin Wu, Ming Yan, Jia Gao, Peng Lv, Xinlin Liu, Chunxiang Li, Yongsheng Yan

Jiangsu University

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

10 Scopus citations

Abstract

Development of efficient visible light driven photocatalysts for water splitting has attracted great research interest. Herein, a novel H₂-producing nitrogen-doped graphene quantum dots (NGQDs)-Cu₂O was successfully constructed and synthesized. The as-prepared NGQDs-Cu₂O photocatalysts were benefited for light harvesting and charge separation and showed highly efficient photocatalytic property for hydrogen production by water splitting. Results displayed that the amount of NGQDs exhibited significant influence for H₂ production, and the optimum sample of 3%NGQDs-Cu₂O performed the highest hydrogen-evolution rate of 22.6μmol h-1 g-1, which was about 2 times higher than that of the pure Cu₂O (10.1μmol h-1 g-1). By further study, the enhanced photocatalytic performance could be ascribed to the crucial role of NGQDs, which widely improve the separation of photogenerated electron-hole pair's.

Original language	English
Article number	1850099
Journal	Nano
Volume	13
Issue number	8
DOIs	https://doi.org/10.1142/S1793292018500996
State	Published - 1 Aug 2018
Externally published	Yes

Keywords

CuO
Graphene quantum dots
H
photocatalysts

UN SDGs

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

Access to Document

10.1142/S1793292018500996

Cite this

@article{d32352fedacf43fcb1dd80ba521c8477,

title = "Fabrication of Nitrogen-Doped Graphene Quantum Dots-Cu2O Catalysts for Enhanced Photocatalytic Hydrogen Evolution",

abstract = "Development of efficient visible light driven photocatalysts for water splitting has attracted great research interest. Herein, a novel H2-producing nitrogen-doped graphene quantum dots (NGQDs)-Cu2O was successfully constructed and synthesized. The as-prepared NGQDs-Cu2O photocatalysts were benefited for light harvesting and charge separation and showed highly efficient photocatalytic property for hydrogen production by water splitting. Results displayed that the amount of NGQDs exhibited significant influence for H2 production, and the optimum sample of 3\%NGQDs-Cu2O performed the highest hydrogen-evolution rate of 22.6μmol h-1 g-1, which was about 2 times higher than that of the pure Cu2O (10.1μmol h-1 g-1). By further study, the enhanced photocatalytic performance could be ascribed to the crucial role of NGQDs, which widely improve the separation of photogenerated electron-hole pair's.",

keywords = "CuO, Graphene quantum dots, H, photocatalysts",

author = "Yilin Wu and Ming Yan and Jia Gao and Peng Lv and Xinlin Liu and Chunxiang Li and Yongsheng Yan",

note = "Publisher Copyright: {\textcopyright} 2018 World Scientific Publishing Company.",

year = "2018",

month = aug,

day = "1",

doi = "10.1142/S1793292018500996",

language = "英语",

volume = "13",

journal = "Nano",

issn = "1793-2920",

publisher = "World Scientific Publishing Co. Pte Ltd",

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TY - JOUR

T1 - Fabrication of Nitrogen-Doped Graphene Quantum Dots-Cu2O Catalysts for Enhanced Photocatalytic Hydrogen Evolution

AU - Wu, Yilin

AU - Yan, Ming

AU - Gao, Jia

AU - Lv, Peng

AU - Liu, Xinlin

AU - Li, Chunxiang

AU - Yan, Yongsheng

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Development of efficient visible light driven photocatalysts for water splitting has attracted great research interest. Herein, a novel H2-producing nitrogen-doped graphene quantum dots (NGQDs)-Cu2O was successfully constructed and synthesized. The as-prepared NGQDs-Cu2O photocatalysts were benefited for light harvesting and charge separation and showed highly efficient photocatalytic property for hydrogen production by water splitting. Results displayed that the amount of NGQDs exhibited significant influence for H2 production, and the optimum sample of 3%NGQDs-Cu2O performed the highest hydrogen-evolution rate of 22.6μmol h-1 g-1, which was about 2 times higher than that of the pure Cu2O (10.1μmol h-1 g-1). By further study, the enhanced photocatalytic performance could be ascribed to the crucial role of NGQDs, which widely improve the separation of photogenerated electron-hole pair's.

AB - Development of efficient visible light driven photocatalysts for water splitting has attracted great research interest. Herein, a novel H2-producing nitrogen-doped graphene quantum dots (NGQDs)-Cu2O was successfully constructed and synthesized. The as-prepared NGQDs-Cu2O photocatalysts were benefited for light harvesting and charge separation and showed highly efficient photocatalytic property for hydrogen production by water splitting. Results displayed that the amount of NGQDs exhibited significant influence for H2 production, and the optimum sample of 3%NGQDs-Cu2O performed the highest hydrogen-evolution rate of 22.6μmol h-1 g-1, which was about 2 times higher than that of the pure Cu2O (10.1μmol h-1 g-1). By further study, the enhanced photocatalytic performance could be ascribed to the crucial role of NGQDs, which widely improve the separation of photogenerated electron-hole pair's.

KW - CuO

KW - Graphene quantum dots

KW - H

KW - photocatalysts

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JO - Nano

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