Fe3O4@graphene oxide composite: A magnetically separable and efficient catalyst for the reduction of nitroarenes

被引：101

作者：

He, Guangyu ^{[1
,2
]}

Liu, Weifeng ^{[1
]}

Sun, Xiaoqiang ^{[1
]}

Chen, Qun ^{[1
]}

Wang, Xin ^{[2
]}

Chen, Haiqun ^{[1
]}

机构：

[1] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China

[2] Nanjing Univ Sci & Technol, Key Lab, Minist Educ Soft Chem & Funct Mat, Nanjing 270094, Jiangsu, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Composites; Magnetic materials; Catalytic properties; AROMATIC NITRO-COMPOUNDS; MG-FE HYDROTALCITE; HYDRAZINE HYDRATE; HYDROGENATION; CARBON; NANOPARTICLES; PERFORMANCE; NITROBENZENES; HYDROXIDE; PRECURSOR;

D O I：

10.1016/j.materresbull.2013.01.038

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We reported a facile co-precipitation method to prepare a highly active Fe3O4@graphene oxide (Fe3O4@GO) composite catalyst, which was fully characterized by means of X-ray diffraction (XRD), Fourier transformed infrared (FTIR) spectroscopy, transmission electron microscopy (TEM) and N-2(center dot) adsorption-desorption measurements. The results demonstrated that the Fe3O4 nanoparticles (Fe3O4 NPs) with a small diameter of around 12 nm were densely and evenly deposited on the graphene oxide (GO) sheets. The as-prepared Fe3O4@GO composite was explored as a catalyst to reduce a series of nitroarenes for the first time, which exhibited a great activity with a turnover frequency (TOF) of 3.63 min(-1), forty five times that of the commercial Fe3O4 NPs. The dosages of catalyst and hydrazine hydrate are both less than those reported. Furthermore, the composite catalyst can be easily recovered due to its magnetic separability and high stability. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1885 / 1890

页数：6

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