Effect of zinc substitution on microstructure and antibacterial properties of cobalt ferrite nanopowders synthesized by sol-gel methods

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Title: Effect of zinc substitution on microstructure and antibacterial properties of cobalt ferrite nanopowders synthesized by sol-gel methods
Author(s): Sanpo, Noppakun; Wang, James; Berndt, Christopher C.
Abstract: Zinc substituted cobalt ferrite nanopowders with the general formula Co(1-x)ZnxFe2O4(with x = 0, 0.3, 0.5, 0.7, and 1) were prepared via the sol-gel route using citric acid as a chelating agent. The influence of zinc concentration on the microstructure, crystal structure and antibacterial property of zinc substituted cobalt ferrite nanopowders has been systematically investigated. The microstructure and elemental composition were characterized using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX), respectively. Phase analysis of cobalt ferrite nanopowders was performed using X-ray diffractometry (XRD). The antibacterial properties of zinc substituted cobalt ferrite nanopowders were investigated. The results indicate that the substitution of zinc influences strongly the microstructure, crystal structure and antibacterial property of the cobalt ferrite nanopowders.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne
Source: Advanced Materials Research: Advanced Engineering Materials II: selected papers from the 2nd International Conference on Advanced Engineering Materials and Technology (AEMT 2012), Zhuhai, China, 06-08 July 2012, Vol. 535-537 (2012), pp. 436-439
Publication year: 2012
FOR Code(s): 0912 Materials Engineering
Keyword(s): Antibacterial properties; Chelating agents; Citric acid; Cobalt ferrite; Nano powders; Sol-Gel; Zinc
Publisher: Trans Tech Publications
ISSN: 1022-6680
ISBN: 9783037854464, 3037854464
Publisher URL: http://dx.doi.org/10.4028/www.scientific.net/AMR.535-537.436
Peer reviewed