Citation: Huang Biting, He Jingbo, Bian Shiyue, Zhou Chenjuan, Li Zhiyang, Xi Fengna, Liu Jiyang, Dong Xiaoping. S-doped graphene quantum dots as nanophotocatalyst for visible light degradation[J]. Chinese Chemical Letters, ;2018, 29(11): 1698-1701. doi: 10.1016/j.cclet.2018.01.004 shu

S-doped graphene quantum dots as nanophotocatalyst for visible light degradation

Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China

Corresponding author: Liu Jiyang, liujy@zstu.edu.cn Dong Xiaoping, xpdong@zstu.edu.cn

Received Date: 11 July 2017
Revised Date: 26 December 2017
Accepted Date: 4 January 2018
Available Online: 5 November 2018

Figures(3)

Graphene quantum dots (GQDs) recently emerge as the new and appealing nanophotocatalyst because of their low-cost, environmental compatibility and the ability to facilitate the charge migration and prolong the charge lifetimes. In this work, a visible photocatalyst of S-doped graphene quantum dots (S-GQDs) was prepared by a facile hydrothermal synthesis using 1, 3, 6-trinitropyrene and Na₂S as precursors. The well crystallization and monodispersity as well as the chemical environment of S-GQDs were characterized by transmission electron microscopy, atom force microscopy and X-ray photoelectron spectrum. A superior photocatalytic performance of S-GQDs was demonstrated for degradation of basic fuchsin under visible light irradiation. Furthermore, the possible photocatalytic mechanism was proposed based on the trapping experiments of active species.
- Graphene quantum dots,
- S-doped,
- Nanophotocatalyst,
- Visible light degradation,
- Basic fuchsin
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