NDLI: Thermal oxidative etching method derived graphitic C<sub>3</sub>N<sub>4</sub>: highly efficient metal-free catalyst in the selective epoxidation of styrene

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Lu Ren, Jia Liu, Qianqian Liu, Xin Dai, Wei-Lin Gao, Ruihua
Copyright Year	2017
Abstract	A series of g-C3N4 nanosheets were synthesized by thermal oxidation with long time heating and etching. With an increase in heating time from 1.0 to 3.0 h, the g-C3N4 nanosheet was obtained with a thinner layer thickness, larger BET surface area and higher graphic nitrogen ratio. As a metal-free heterogeneous catalyst, the g-C3N4 NS-3 h nanosheets show a superior catalytic performance for the epoxidation of styrene to styrene oxide than that of the bulk g-C3N4 and other recently reported metal-free materials. The higher activity of the g-C3N4 NS-3 h synthesized by long time thermal oxidative etching might be ascribed to the enlarged specific surface, pore volume and higher graphic nitrogen ratio with the loose and soft laminar morphology. The graphitic nitrogen species play a key role in the catalytic reaction based on a good linear correlation between the content of these species and the activity results. The g-C3N4 nanosheets are very stable and can be reused 5 times without obvious loss of catalytic activity.
Starting Page	5340
Ending Page	5348
Page Count	9
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	7
Issue Number	9
Journal	RSC Advances
DOI	10.1039/c6ra26137j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	BET Heterogeneous catalysis Nanosheet Laminar flow Thermal oxidation Epoxide Styrene Weathering Nitrogen Styrene oxide
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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