期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 500, 期 -, 页码 285-293出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2017.03.030
关键词
Arylamines; Nanocatalyst; NaBH4; NiFe2O4@Cu; Nitroarenes; Reduction
资金
- research council of Urmia University
In this research, a simple and efficient method for synthesis of magnetically separable NiFe2O4@Cu nanocomposite under co-precipitation conditions was described. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), atomic absorption spectroscopy (AAS), Brunauer-Emmett-Teller (BET) and vibrating sample magnetometer (VSM) analyses confirmed the construction of NiFe2O4@Cu nanoparticles. The prepared core-shell nanocomposite showed a satisfactory catalytic activity for NaBH4 reduction of nitroarenes to arylamines. All reactions were carried out in a mixture of H2O-EtOH (1.5:0.5 mL) within 1-12 min under reflux conditions. The Cu nanocatalyst can be easily separated by a magnet and reused seven consecutive runs with no obvious loss of activity. (C) 2017 Elsevier Inc. All rights reserved.
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