{"title":"Development and characterization of superparamagnetic Zn-Doped Nickel ferrite nanoparticles","authors":"Sarita , Anchal , Priya , R.K. Beniwal , M.S. Rulaniya , P.M. Saini , Pooja Yadav , Upendra Kumar , Aakansha , P.A. Alvi , B.L. Choudhary","doi":"10.1016/j.jmmm.2024.172547","DOIUrl":null,"url":null,"abstract":"<div><div>The nanocrystalline Zn-doped Nickel ferrite nanoparticles, Zn<sub>x</sub>Ni<sub>1-x</sub>Fe<sub>2</sub>O<sub>4</sub> (x = 0.2, 0.4, 0.6 and 0.8) have been developed using the sol–gel method. The average crystallite size was calculated using the Debye- Scherrer formula through X-ray diffractometry and found to be in the range of ∼ 4 nm to 7 nm. Rietveld refinement of the prepared samples suggested the cubic spinel phase of the nanoparticles. For the surface morphology analysis of the nanoparticles, the Field Emission Scanning Electron Microscope (FESEM) technique was utilized, which showed the spherical shape of the particles. Elemental Dispersive X-ray spectroscopy (EDAX) ascertained the experimentally obtained elemental composition with the calculated elemental composition and identified the elements present within the sample. Fourier Transform Infrared Spectroscopy (FTIR) revealed the two prominent absorbing bands, i.e., tetrahedral complex, υ<sup>1</sup> and octahedral complex, υ<sup>2</sup> in the range of 4000–300 cm<sup>−1</sup>. Photoluminescence spectroscopy and UV Visible diffuse reflectance spectroscopy determined the optical properties of the samples and it was observed that with the increasing concentration of Zinc, the value of band gap decreased from 2.29 eV to 2.11 eV. The M−H curves of the Zn-doped nickel ferrites exhibit superparamagnetic behavior at room temperature, confirming the presence of a single domain in the sample.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"610 ","pages":"Article 172547"},"PeriodicalIF":2.5000,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnetism and Magnetic Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304885324008382","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The nanocrystalline Zn-doped Nickel ferrite nanoparticles, ZnxNi1-xFe2O4 (x = 0.2, 0.4, 0.6 and 0.8) have been developed using the sol–gel method. The average crystallite size was calculated using the Debye- Scherrer formula through X-ray diffractometry and found to be in the range of ∼ 4 nm to 7 nm. Rietveld refinement of the prepared samples suggested the cubic spinel phase of the nanoparticles. For the surface morphology analysis of the nanoparticles, the Field Emission Scanning Electron Microscope (FESEM) technique was utilized, which showed the spherical shape of the particles. Elemental Dispersive X-ray spectroscopy (EDAX) ascertained the experimentally obtained elemental composition with the calculated elemental composition and identified the elements present within the sample. Fourier Transform Infrared Spectroscopy (FTIR) revealed the two prominent absorbing bands, i.e., tetrahedral complex, υ1 and octahedral complex, υ2 in the range of 4000–300 cm−1. Photoluminescence spectroscopy and UV Visible diffuse reflectance spectroscopy determined the optical properties of the samples and it was observed that with the increasing concentration of Zinc, the value of band gap decreased from 2.29 eV to 2.11 eV. The M−H curves of the Zn-doped nickel ferrites exhibit superparamagnetic behavior at room temperature, confirming the presence of a single domain in the sample.
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The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public.
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