Fabrication of smart magnetite/reduced graphene oxide composite nanoparticles and their magnetic stimuli-response

Cheng Hai Hong; Min Wook Kim; Wen Ling Zhang; Il Jae Moon; Hyoung Jin Choi

doi:10.1016/j.jcis.2016.07.060

Fabrication of smart magnetite/reduced graphene oxide composite nanoparticles and their magnetic stimuli-response

J Colloid Interface Sci. 2016 Nov 1:481:194-200. doi: 10.1016/j.jcis.2016.07.060. Epub 2016 Jul 25.

Authors

Cheng Hai Hong¹, Min Wook Kim¹, Wen Ling Zhang², Il Jae Moon¹, Hyoung Jin Choi³

Affiliations

¹ Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Republic of Korea.
² College of Chemical Science and Engineering, Laboratory of Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory, Qingdao University, Qingdao 266071, China.
³ Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Republic of Korea. Electronic address: hjchoi@inha.ac.kr.

PMID: 27475706
DOI: 10.1016/j.jcis.2016.07.060

Abstract

Novel Fe3O4/reduced graphene oxide (RGO) composite nanoparticles were synthesized and confirmed by FT-IR spectra as good candidates for magnetic stimuli-responsive magnetorheological (MR) materials. The morphology of Fe3O4/RGO was observed by both scanning and transmission electron microscopy and their sedimentation stability improved due to a decreased density of the synthesized composites. The MR performance of the Fe3O4/RGO-based fluid was investigated with a rotational rheometer, and the Cho-Choi-Jhon model of the rheological equation of state was adopted to explain their performances for the entire shear rate region.

Keywords: Fe(3)O(4); Graphene oxide; Magnetic particle; Magnetorheological fluid.