Int. J. of Nanomanufacturing   »   2014 Vol.10, No.1/2

 

 

Title: Magnetic Fe3O4-GO nanocomposites as highly efficient Fenton-like catalyst for the degradation of dyes

 

Authors: Yan Hong Chang; Yun Feng Yao; Hui Luo; Lei Cui; Lin Jie Zhi

 

Addresses:
School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
School of Chemical and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
National Center for Nanoscience and Technology, Beijing 100190, China

 

Abstract: In this work, a new and highly degradation efficiency Fenton-like catalyst based on Fe3O4 magnetic nanoparticles decorated with graphene oxide (GO) was successfully prepared and used to remove Rhodamine B (RhB) from aqueous solution. The Fe3O4-GO nanocomposites were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared spectrometer (FTIR), respectively. The effects of catalyst dosage, H2O2 adding amount and pH on the degradation rate of RhB were also investigated. When 0.2 g/L of Fe3O4-GO was introduced to RhB solution (10 mg/l, 100 ml), about 95% RhB was degraded within 60 min under optimisation condition. Comparing with bare Fe3O4 nanoparticles, the degradation rate of Fe3O4-GO nanocomposites was much higher at the same reaction condition. Moreover, the Fe3O4-GO nanocomposites were demonstrated to have excellent reusability and could be easily separated from the aqueous solution by an external magnetic field. Therefore, the Fenton-like catalyst is potentially usable for degrading dyes in the field of environmental protection.

 

Keywords: Fenton-like catalyst; Fe3O4-GO nanocomposites; Rhodamine B; RhB; dye degradation; dyes; magnetic nanoparticles; graphene oxide; iron(II,III) oxide; environmental protection; nanotechnology.

 

DOI: 10.1504/IJNM.2014.059004

 

Int. J. of Nanomanufacturing, 2014 Vol.10, No.1/2, pp.132 - 141

 

Submission date: 14 Dec 2012
Date of acceptance: 06 Apr 2013
Available online: 01 Feb 2014

 

 

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