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Razeghizadeh, A., Elahi, E., Rafee, V. (2018). The effect of Mn doping on structural, magnetic and optical properties of TiO2 nanoparticles. Journal of Nanoanalysis, 5(2), 77-83. doi: 10.22034/jna.2018.541852
Alireza Razeghizadeh; Elham Elahi; Vahdat Rafee. "The effect of Mn doping on structural, magnetic and optical properties of TiO2 nanoparticles". Journal of Nanoanalysis, 5, 2, 2018, 77-83. doi: 10.22034/jna.2018.541852
Razeghizadeh, A., Elahi, E., Rafee, V. (2018). 'The effect of Mn doping on structural, magnetic and optical properties of TiO2 nanoparticles', Journal of Nanoanalysis, 5(2), pp. 77-83. doi: 10.22034/jna.2018.541852
Razeghizadeh, A., Elahi, E., Rafee, V. The effect of Mn doping on structural, magnetic and optical properties of TiO2 nanoparticles. Journal of Nanoanalysis, 2018; 5(2): 77-83. doi: 10.22034/jna.2018.541852

The effect of Mn doping on structural, magnetic and optical properties of TiO2 nanoparticles

Article 9, Volume 5, Issue 2, Spring 2018, Page 77-83  XML PDF (876.05 K)
Document Type: Original Research Paper
DOI: 10.22034/jna.2018.541852
Authors
Alireza Razeghizadeh1; Elham Elahi2; Vahdat Rafee email 3
1Department Physics, Faculty of science, Payamenoor University, IRAN
2Department Physics, Faculty of science, Payamenoor University, Iran
3department of physics, faculty of science, payamenoor university, tehran, iran
Abstract
The aim of this paper is to study the effect of Mn concentration on the structural, magnetic
and optical properties of TiO2 nanoparticles. TiO2 nanopowders with Mn concentration of 0%,
0.2%, 1% and 5% were synthesized by the sol-gel method. The structural, surface morphology
and average crystal grain size, optical, magnetic properties and chemical compounds of the
samples are studied using XRD, FE-SEM, Uv-Vis, VSM and EDX analysis respectively. The results
indicate that the samples are crystallized at anatase phase. Also, the average size of the
nanoparticles is decreased by increasing Mn doping percent. The study of the optical properties
shows that the absorption maximum dislocates toward higher wavelengths by adding Mn
to the sample. This shift may be ascribed to the enhanced trapped electron absorption caused
by the Mn-doped ions. The optical energy band gap of the doping samples shows significant
reduction rather the pure state. The samples show significant paramagnetic behavior when
the Mn concentration is 5%.
Keywords
Mn-doped; TiO2 Nano-powders; Sol-gel method; Magnetic properties
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