Citation: HOU Jian-Hua, CAI Rui, SHEN Ming, JIANG Kun. Preparation and Visible Light Photocatalysis of Porous Nanosheet Graphitic Carbon Nitride[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(3): 467-474. doi: 10.11862/CJIC.2018.064 shu

Preparation and Visible Light Photocatalysis of Porous Nanosheet Graphitic Carbon Nitride

HOU Jian-Hua ^1,2,3 ,
CAI Rui ² ,
SHEN Ming ^2,, ,
JIANG Kun ²

1.
College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
2.
College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
3.
Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China

Corresponding author: SHEN Ming, shenming@yzu.edu.cn
Received Date: 27 September 2017
Revised Date: 26 November 2017

Figures(7)

Porous carbon nitride nanosheet was prepared by the simple oxygen etching using melamine and thiourea as precursors respectively. The porous g-C₃N₄ (TCNS) nanosheet prepared by thiourea is thinner than the porous carbon nitride (MCNS) nanosheet prepared by melamine, and the monolayer thickness is about 30 nm. Meanwhile, TCNS demonstrates an obvious layered structure and a band gap of 3.03 eV, which is higher than that of graphitic carbon nitride (2.77 eV). An enlarged band gap can give carrier stronger ability of oxidation reduction for photocatalysis. The larger specific surface area (114 m²·g^-1) can provide more active sites, and the nanosheet structure can effectively promote the separation and transfer of electrons and holes, which makes TCNS have higher photocatalytic activity.
- carbon nitride,
- oxygen etching,
- porous material,
- nanosheet,
- visible light photocatalys
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