Issue 41, 2013
From the journal:

Dalton Transactions

Synthesis of porous Fe3O4 hollow microspheres/graphene oxide composite for Cr(vi) removal

Mancheng Liu,a   Tao Wen,ab   Xilin Wu,b   Changlun Chen,*a   Jun Hu,a   Jie Lia  and  Xiangke Wanga  

* Corresponding authors

a Key Laboratory of Novel Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, P.R. China
E-mail: clchen@ipp.ac.cn
Fax: +86-551-65591310
Tel: +86-551-65593308

b College of Nuclear Science and Technology, University of Science and Technology of China, Hefei, P.R. China

Abstract

A composite of porous Fe3O4 hollow microspheres/graphene oxide (Fe3O4/GO) has been fabricated through a facile self-assembly approach. Driven by the mutual electrostatic interactions, the amine-functionalized Fe3O4 microspheres prepared by a hydrothermal method and then modified by 3-aminopropyltrimethoxysilane were decorated with negatively-charged GO sheets. The Fe3O4 microspheres were hollow with porous surfaces and the surfaces were successfully modified with the amine, which was confirmed by Fourier transform infrared spectroscopy. The specific saturation magnetization of Fe3O4/GO was 37.8 emu g−1. The sorption performance of Fe3O4/GO for Cr(VI) was evaluated. The maximum sorption capacity for Cr(VI) on Fe3O4/GO was 32.33 mg g−1, which was much higher than that of Fe3O4 microspheres. The GO sheets could not only prevent agglomeration of the Fe3O4 microspheres and enable a good dispersion of these oxide microspheres, but also substantially enhance the specific surface area of the composite. The Fe3O4/GO composite may be a promising sorption material for the separation and preconcentration of heavy metal ions from aqueous solutions in environmental pollution cleanup.

Graphical abstract: Synthesis of porous Fe3O4 hollow microspheres/graphene oxide composite for Cr(vi) removal

About
Cited by
Related
Download options Please wait...

Associated articles

Article information

DOI
https://doi.org/10.1039/C3DT50955A
Article type
Paper
Submitted
11 Apr 2013
Accepted
10 May 2013
First published
07 Jun 2013

Dalton Trans., 2013,42, 14710-14717

Permissions

Request permissions

Synthesis of porous Fe3O4 hollow microspheres/graphene oxide composite for Cr(VI) removal

M. Liu, T. Wen, X. Wu, C. Chen, J. Hu, J. Li and X. Wang, Dalton Trans., 2013, 42, 14710 DOI: 10.1039/C3DT50955A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements