Effect of Gd3+-, Pr3+- or Sm3+-substituted cobalt�zinc ferrite on photodegradation of methyl orange and cytotoxicity tests

Peymani-Motlagh, S.M. and Moeinian, N. and Rostami, M. and Fasihi-Ramandi, M. and Sobhani-Nasab, A. and Rahimi-Nasrabadi, M. and Eghbali-Arani, M. and Ganjali, M.R. and Jesionowski, T. and Ehrlich, H. and Karimi, M.A. and Ajami, N. (2019) Effect of Gd3+-, Pr3+- or Sm3+-substituted cobalt�zinc ferrite on photodegradation of methyl orange and cytotoxicity tests. Journal of Rare Earths, 37 (12). pp. 1288-1295.

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Gd3+-, Pr3+- or Sm3+-doped Co-Zn (Co0.5Zn0.5Fe2O4) magnetic ferrites (i.e., Co0.5Zn0.5Gd0.1Fe1.9O4, Co0.5Zn0.5Pr0.1Fe1.9O4 and Co0.5Zn0.5Sm0.1Fe1.9O4) were prepared using a facile sol-gel approach, and the structure, surface morphology and chemical composition of the products were studied by means of scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy, Fourier transform infrared spectroscopy (FT-IR) and vibrating sample magnetometer (VSM) spectroscopy. XRD patterns show the Co-Zn product is composed of cubic spinel phases with few impurities or secondary phases, and the average crystallite sizes of the samples are determined to be approximately �51�80, �99�181, �68�103 and �83�133 nm. Also the coercivity and remnant and saturation magnetizations, evaluated by vibrating sample magnetometer (VSM), are found to increase linearly with the incorporation of Gd3+, Pr3+ and Sm3+ in the product formulation. The Co1�xZnxFe2�yRyO4 photocatalyst sample is found to display a red shift in its absorption, and exhibits outstanding photocatalytic effects in the degradation of MO under ultraviolet (UV) light. This is attributed to the reduction of the band gap of cobalt-zinc ferrite due to the presence of rare earth ions. Further in vitro evaluations of the cytotoxic effects of the synthesized nanoparticles were performed on a HeLa cell line. © 2019

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: Azo dyes; Binary alloys; Cell culture; Chemical analysis; Cobalt; Cytotoxicity; Energy dispersive X ray analysis; Energy gap; Ferrite; Fourier transform infrared spectroscopy; Gadolinium compounds; Geochemistry; Lanthanum compounds; Magnetometers; Metal ions; Morphology; Photocatalysts; Photoluminescence spectroscopy; Rare earths; Red Shift; Scanning electron microscopy; Sol-gel process; Sol-gels; Surface morphology; Synthesis (chemical); X ray diffraction; X ray diffraction analysis; Zinc, Chemical compositions; Energy dispersive x-ray analysis (EDX); Fourier transform infra red (FTIR) spectroscopy; Magnetic ferrites; Photocatalytic effect; Rare earth ions; UV-visible diffuse reflectance spectroscopy; Vibrating sample magnetometer, Praseodymium compounds
Subjects: Chemistry
Pharmacology, Toxicology and Pharmaceutics
Divisions: Faculty of Medicine > Basic Sciences > Department of Pharmacology
Depositing User: ART . editor
Date Deposited: 01 Jan 2020 15:12
Last Modified: 01 Jan 2020 15:12
URI: http://eprints.kaums.ac.ir/id/eprint/4399

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