Fabrication of magnetically recyclable Fe3O4@Cu nanocomposites with high catalytic performance for the reduction of organic dyes and 4-nitrophenol
Fabrication of magnetically recyclable Fe3O4@Cu nanocomposites with high catalytic performance for the reduction of organic dyes and 4-nitrophenol
复制标题
具有高催化性能的磁性可回收Fe3O4@Cu纳米复合材料的制备，用于还原有机染料和4-硝基苯酚
DOI：
10.1016/j.matchemphys.2014.08.029
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发表时间：
2014-12-15
影响因子：
4.6
通讯作者：
Qiu, Haixia
中科院分区：
文献类型：
--
作者：
Tang, Mingyi;Zhang, Sai;Qiu, Haixia
以L-赖氨酸为连接剂，采用一种简便、高效的方法合成了Fe3O4@Cu纳米复合材料。采用傅里叶变换红外光谱、透射电子显微镜、能量色散X射线光谱和粉末X射线衍射对Fe3O4@Cu纳米复合材料的形貌、组成和结晶度进行了表征。此外，用振动样品磁强计测定了样品的磁性能。Fe_3O_4表面含有许多尺寸约为3 nm的Cu纳米粒子。结果表明，Fe3O4@Cu纳米复合材料对有机染料具有催化降解作用。研究了Fe3O4@Cu纳米复合材料对硝基苯酚还原反应的催化活性。Fe3O4@Cu纳米复合材料是比Cu纳米颗粒更有效的催化剂，并且可以容易地用磁体从反应混合物中回收。具有成本效益和可回收的Fe3O4@Cu纳米复合材料为环保应用提供了令人兴奋的新材料。(C)2014爱思唯尔有限公司版权所有。
A facile and efficient approach to synthesize Fe3O4@Cu nanocomposites using L-Lysine as a linker was developed. The morphology, composition and crystallinity of the Fe3O4@Cu nanocomposites were characterized by Fourier Transform infrared spectroscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, and powder X-ray diffraction. In addition, the magnetic properties were determined with vibrating sample magnetometer. The surface of the Fe3O4 contained many small Cu nanoparticles with sizes of about 3 nm. It was found that the Fe3O4@Cu nanocomposites could catalyze the degradation of organic dyes. The catalytic activities of the Fe3O4@Cu nanocomposites for the reduction of nitrophenol were also studied. The Fe3O4@Cu nanocomposites are more efficient catalysts compared with Cu nanoparticles and can easily be recovered from the reaction mixture with magnet. The cost effective and recyclable Fe3O4@Cu nanocomposites provide an exciting new material for environmental protection applications. (C) 2014 Elsevier B.V. All rights reserved.