An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic Properties
In this study, BaZr1-xCoxO3 nanoparticles, x = 0.00, 0.04, 0.06, 0.08, 0.10 and 0.20, are synthesized through co-precipitation method. Therefore, structural, optical and magnetic properties have been investigated. The cubic perovskite structure is confirmed by X-ray diffraction (XRD) and Fourier tra...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nanoscience and Nanotechnology Research Center, University of Kashan
2019-07-01
|
| Series: | Journal of Nanostructures |
| Subjects: | |
| Online Access: | http://jns.kashanu.ac.ir/article_92217_b3c2e3424b3eb1411e3d5b35bdce6b0c.pdf |
| _version_ | 1811323184090185728 |
|---|---|
| author | D. EL-Said Bakeer Abdel-Hamed Sakr Hussien Motaweh Walaa El-Sokary |
| author_facet | D. EL-Said Bakeer Abdel-Hamed Sakr Hussien Motaweh Walaa El-Sokary |
| author_sort | D. EL-Said Bakeer |
| collection | DOAJ |
| description | In this study, BaZr1-xCoxO3 nanoparticles, x = 0.00, 0.04, 0.06, 0.08, 0.10 and 0.20, are synthesized through co-precipitation method. Therefore, structural, optical and magnetic properties have been investigated. The cubic perovskite structure is confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopic measurements. The average crystallite size and micro strain are calculated by Williamson-hall analysis and they have been found to increase by increasing the Co2+ content. More emphasis is given for the calculation of the optical parameters from UV–visible absorption spectra. The optical bandgap is found to be decreasing; on the other hand Urbach energy increases with the increase in Co2+ content. The refractive index of the samples obeys the single-oscillator model and the dispersion parameters such as single oscillator energy, dispersion energy, and lattice dielectric constant are calculated and their variations with Co2+ content are reported. The undoped BaZrO3 nanoparticles exhibits unexpected superparamagnetic behavior and ferromagnetic hysteresis at room temperature for BaZr1-xCoxO3 , x=0.10 and 0.20. With the increase in the Co2+ content, the concentration of oxygen vacancies increases and as a result the magnetic properties are improved. Thus, the most significant result of the present work is the modification of optical constants and the improvement of magnetic properties of BaZrO3 nanoparticles by partial Co2+ substitution. |
| first_indexed | 2024-04-13T13:49:33Z |
| format | Article |
| id | doaj.art-f7df77bbcbdb4499b49da99d428f8077 |
| institution | Directory Open Access Journal |
| issn | 2251-7871 2251-788X |
| language | English |
| last_indexed | 2024-04-13T13:49:33Z |
| publishDate | 2019-07-01 |
| publisher | Nanoscience and Nanotechnology Research Center, University of Kashan |
| record_format | Article |
| series | Journal of Nanostructures |
| spelling | doaj.art-f7df77bbcbdb4499b49da99d428f80772022-12-22T02:44:23ZengNanoscience and Nanotechnology Research Center, University of KashanJournal of Nanostructures2251-78712251-788X2019-07-019341442810.22052/JNS.2019.03.00392217An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic PropertiesD. EL-Said Bakeer0Abdel-Hamed Sakr1Hussien Motaweh2Walaa El-Sokary3Physics Department, Faculty of Science, Damanhour University, Damanhour, EgyptPhysics Department, Faculty of Science, Damanhour University, Damanhour, EgyptPhysics Department, Faculty of Science, Damanhour University, Damanhour, EgyptPhysics Department, Faculty of Science, Damanhour University, Damanhour, EgyptIn this study, BaZr1-xCoxO3 nanoparticles, x = 0.00, 0.04, 0.06, 0.08, 0.10 and 0.20, are synthesized through co-precipitation method. Therefore, structural, optical and magnetic properties have been investigated. The cubic perovskite structure is confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopic measurements. The average crystallite size and micro strain are calculated by Williamson-hall analysis and they have been found to increase by increasing the Co2+ content. More emphasis is given for the calculation of the optical parameters from UV–visible absorption spectra. The optical bandgap is found to be decreasing; on the other hand Urbach energy increases with the increase in Co2+ content. The refractive index of the samples obeys the single-oscillator model and the dispersion parameters such as single oscillator energy, dispersion energy, and lattice dielectric constant are calculated and their variations with Co2+ content are reported. The undoped BaZrO3 nanoparticles exhibits unexpected superparamagnetic behavior and ferromagnetic hysteresis at room temperature for BaZr1-xCoxO3 , x=0.10 and 0.20. With the increase in the Co2+ content, the concentration of oxygen vacancies increases and as a result the magnetic properties are improved. Thus, the most significant result of the present work is the modification of optical constants and the improvement of magnetic properties of BaZrO3 nanoparticles by partial Co2+ substitution.http://jns.kashanu.ac.ir/article_92217_b3c2e3424b3eb1411e3d5b35bdce6b0c.pdfbazro3 nanoparticlesco-precipitation methodftirsingle oscillator modelmagnetic properties |
| spellingShingle | D. EL-Said Bakeer Abdel-Hamed Sakr Hussien Motaweh Walaa El-Sokary An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic Properties Journal of Nanostructures bazro3 nanoparticles co-precipitation method ftir single oscillator model magnetic properties |
| title | An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic Properties |
| title_full | An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic Properties |
| title_fullStr | An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic Properties |
| title_full_unstemmed | An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic Properties |
| title_short | An Efficient Co-Precipitation Synthesis of BaZr1-xCoxO3 Nanoparticles: Structural, Optical and Magnetic Properties |
| title_sort | efficient co precipitation synthesis of bazr1 xcoxo3 nanoparticles structural optical and magnetic properties |
| topic | bazro3 nanoparticles co-precipitation method ftir single oscillator model magnetic properties |
| url | http://jns.kashanu.ac.ir/article_92217_b3c2e3424b3eb1411e3d5b35bdce6b0c.pdf |
| work_keys_str_mv | AT delsaidbakeer anefficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties AT abdelhamedsakr anefficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties AT hussienmotaweh anefficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties AT walaaelsokary anefficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties AT delsaidbakeer efficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties AT abdelhamedsakr efficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties AT hussienmotaweh efficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties AT walaaelsokary efficientcoprecipitationsynthesisofbazr1xcoxo3nanoparticlesstructuralopticalandmagneticproperties |