期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 514, 期 -, 页码 723-732出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2017.12.083
关键词
Nanostructures; Starch; Sol-gel; Auto-combustion process; Magnetic properties
资金
- Iran National Science Foundation [94018875]
- council of University of Kashan [159271/1279]
The sol-gel auto-combustion technique is an effective method for the synthesis of the composites. In this research for the first time, CoTiO3/CoFe2O4 nanocomposites are successfully synthesized via a new sol-gel auto-combustion technique. The glucose, maltose and starch are used as fuel, capping and reducing agents, also the optimal reducing agent is chosen. The effects of quantity of reducing agent, molar ratio of Ti:Co, calcination temperature and time on the morphology, particle size, magnetic property, purity and phase of the nanocomposites are investigated. XRD patterns show formation of CoTiO3/CoFe2O4 spherical nanoparticles with nearly evenly distribution, when the molar ratio of Co/Ti is 1:1. EDS analysis confirm results of XRD. The magnetic behavior of the nanocomposites is studied by VSM. The nanocomposites exhibit a high coercivity at room temperature. (C) 2017 Elsevier Inc. All rights reserved.
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