Open AccessMagnetic and Antibacterial Studies of Nanoferrites Prepared by Self Propagating High-Temperature Synthesis Route
Author(s) -
Ravi Bharamagoudar,
Anil S. Patil,
S. N. Mathad,
Vijay Kumbar,
Laxmi B. Kankanawadi
Publication year - 2018
Publication title -
acta chemica iaşi
Language(s) - English
Resource type - Journals
eISSN - 2067-2438
pISSN - 2067-2446
DOI - 10.2478/achi-2018-0016
Subject(s) - magnetization , remanence , lattice constant , nuclear chemistry , antibacterial activity , crystal structure , crystallite , saturation (graph theory) , chemistry , analytical chemistry (journal) , materials science , crystallography , diffraction , bacteria , organic chemistry , physics , biology , magnetic field , mathematics , quantum mechanics , combinatorics , optics , genetics
The main objective of the manuscript is the structural analysis, magnetic investigation and antimicrobial activity of Mn 1−x Zn x Fe 2 O 4 with stoichiometry (x = 0, 0.25, 0.5, 0.75, and 1.0). The Mn-Zn nanoferrites were synthesized by self propagating high-temperature synthesis using a mixture of fuels. The synthesized Mn-Zn nanoferrites were characterized by X-ray diffraction (XRD) that confirms cubic crystal structure with lattice constant in the range 8.372-8.432A o . It is observed that saturation magnetization (Ms), remanence magnetization (Mr) and magneton number (Mr/Ms) decreased gradually with the increasing of Zn 2+ concentration. The decrease in the saturation magnetization may be explained as, the Zn 2+ concentration increases, the relative number of ferric ions on the A sites diminishes and this reduces the A–B interaction. Further, the synthesized Mn-Zn nanoferrites were tested for antibacterial activities against two-gram positive strains ( Staphylococcus aureus ATCC No–12598, Lactobacillus amylovorus ATCC No– 12598), gram-negative strains E.coli ATCC No – 25922, Pseudomonas - ATCC No- 25619) and one fungal strain ( C.albicans -ATCC No – 2091).