CoFe2O4 nanoparticles synthesized with natural templates. Issue 77 (2nd August 2016)

• Record Type: Journal Article
• Authors: Ferreira, L. P.; Cruz, M. M.; Oliveira, M. L.; Mendo, S. G.; Alves, A. F.; Godinho, M.; Carvalho, M. D.
• Is Part Of: RSC advances. Volume 6:Issue 77(2016)
• Page Start: 73506
• Page End: 73516
• Publication Date: 2016-08-02
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra13818g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : CoFe2 O4 nanoparticles with high magnetic coercivity were synthesized using natural templates. Abstract : CoFe2 O4 nanoparticles were synthesized using a simple precipitation method in the presence of three natural templates: flax, gauze and sisal. Each preparation gave rise to two different types of samples. The structural, morphological and magnetic properties of the nanoparticles were characterized, and their usefulness as nano-heaters in magnetic hyperthermia was explored. The specific loss powers obtained for all CoFe2 O4 nanoparticles in water shared similar magnitudes and were attributed to a dominant Brown relaxation. The nanoparticles obtained after template calcination at 550 °C display morphologies determined by the threaded templates, with enhanced magnetic anisotropy and associated magnetic coercivities similar to that of nanofibers or nanorods.