NDLI: A 2D porous Fe2O3/graphitic-C3N4/graphene ternary nanocomposite with multifunctions of catalytic hydrogenation, chromium(vi) adsorption and detoxification

Content Provider	Royal Society of Chemistry (RSC)
Author	Wang, Jian-Hua Zhu, Ting-Ting Yu, Yong-Liang Zhuang, Yu-Ting Ruan, Man
Copyright Year	2017
Abstract	A facile and green approach for the preparation of a multifunctional ternary Fe2O3/graphitic-C3N4/graphene (FeCNG) nanocomposite with a porous structure is reported. This entails the growth of Prussian blue (PB) and adsorption of urea on graphene oxide (GO), followed by thermal pyrolysis of PB and urea leading to in situ formation of a porous N-doped graphene/iron oxide architecture. This strategy for the generation of FeCNG requires no structure-directing surfactants and gives rise to an N-doped composite capable of separation for recycling. The FeCNG architecture is capable of both rapid reduction of p-nitrophenol (4-NP) and efficient scavenging of Cr(VI) in aqueous media. The reduction of 4-NP to p-aminophenol by NaBH4 could be achieved within 3 min at 25 °C, using catalyst loadings as low as 1 mg. Cr(VI) adsorption was evaluated by Langmuir and pseudo-second-order models, offering a maximum equilibrium adsorption capacity of 149 mg g−1. In particular, Cr(VI) could be effectively adsorbed by the FeCNG nanocomposite and thereby reduced to less toxic Cr(III). By virtue of the enhanced catalytic performance and highly efficient adsorption of Cr(VI) across a wide pH range, the FeCNG nanocomposite possesses a broad application potential in energy and environmental sciences.
Starting Page	3447
Ending Page	3455
Page Count	9
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	7
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta09774j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Langmuir Graphene Nanocomposite Prussian blue Adsorption Urea Pyrolysis Iron oxide 4-Nitrophenol 4-Aminophenol Sodium borohydride Langmuir adsorption model PH
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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