NDLI: Synthesis of nonstoichiometric zinc ferrite nanoparticles with extraordinary room temperature magnetism and their diverse applications

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Synthesis of nonstoichiometric zinc ferrite nanoparticles with extraordinary room temperature magnetism and their diverse applications

Content Provider	Semantic Scholar
Author	Yang, Yang Liu, Xiao Li Yang, Yong Xiao, Wen Li, Zhiwei Xue, Desheng Li, Fashen Ding, Jun
Copyright Year	2013
Abstract	A series of nonstoichiometric zinc ferrite (ZndFe3−dO4) nanoparticles with Zn-dopant concentration d ranging from 0 to 0.5 was synthesized via thermal decomposition route employing oleic acid as surfactant. The zinc dopant concentration was controlled by the ratio of Zn/Fe precursors. High room temperature saturation magnetization of 110 emu g−1 was obtained for large Zn ferrite particles (more than 100 nm) with nominal composition of Zn0.468Fe2.532O4. The origin of the extraordinary magnetic property was revealed as the Zn substitution of Fe atoms at the tetrahedral site (A site) in the spinel magnetite phase. It was found that the precursor/surfactant ratio was an important parameter for the control of the shape and size of as-synthesized Zn ferrite particles. The details were investigated through a series of experimental work. Size-dependent applications, such as radar absorption and magnetic fluid hyperthermia, were further studied. Both applications required magnetic particles with high saturation magnetization, hence our samples displayed advantages over Fe3O4 magnetite nanoparticles. Especially for magnetic fluid hyperthermia, 26 nm Zn ferrite nanoparticles coated by P-mPEG polymer showed superior biocompatibility and heating efficiency, implying the potential usefulness to in vivo cancer therapy.
Starting Page	2875
Ending Page	2885
Page Count	11
File Format	PDF HTM / HTML
DOI	10.1039/c3tc00790a
Volume Number	1
Alternate Webpage(s)	http://www.rsc.org/suppdata/tc/c3/c3tc00790a/c3tc00790a.pdf
Alternate Webpage(s)	https://doi.org/10.1039/c3tc00790a
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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