Enhanced multifunctional properties of lanthanum-doped barium ferrite nanoparticles synthesized via sol-gel assisted hydrothermal method

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作者：
Deshmukh, V.V. [1 ]
Harini, H.V. [2 ]
Naik, Ramachandra [3 ]
Nagaswarupa, H.P. [2 ]
Basavaraju, N. [4 ]
Al-Asbahi, Bandar Ali [5 ]
Roy, Nipa [6 ]
Joo, Sang Woo [7 ]
机构：
[1] Department of Physics, Shri Shivaji Science College, Maharashtra, Amravati,444602, India
[2] Department of Studies in Chemistry, Shivagangothri, Davangere University, Davnagere,577007, India
[3] Department of Physics, New Horizon College of Engineering, Bangalore,560103, India
[4] Research Center, Department of Science, East West Institute of Technology, VTU, Bangalore,560091, India
[5] Department of Physics & Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh,114, Saudi Arabia
[6] Department of Physics, Yeungnam University, Gyeongsan,38541, Korea, Republic of
[7] School of Mechanical Engineering, Yeungnam University, Gyeongsan,38541, Korea, Republic of
来源：
Journal of Energy Storage | 2024年 / 82卷
关键词：
Lanthanum-doped Barium Ferrite (BaFe2-xLaxO4; x; 0.1; 0.3; 0.5; 0.7; 0.9) nanoparticles were successfully synthesized using a novel sol-gel assisted hydrothermal hybrid method. Extensive characterization techniques (XRD; FTIR; SEM; TEM; and Raman) confirmed the incorporation of Lanthanum ions into the BaFe2O4 crystal lattice; resulting in uniform crystallites of approximately 20 nm in size; enhanced ionic bonding; and improved surface morphology. Notably; La3+; substitution; particularly at x = 0.7; significantly reduced the band gap to 1.32 eV; unlocking the potential for multifunctional applications of BaFe2O4 nanoferrites. Cyclic voltammetry and galvanometric charge/discharge studies revealed significantly enhanced electrochemical activity for the x = 0.7 La3+-doped sample compared to pure BaFe2O4. Furthermore; in photocatalytic experiments; 60 mg of BaFe1.5La0.5O4 nanoparticles achieved an impressive 98.9 % degradation of Acid Orange-88 dye under UV light irradiation within 90 min. These findings highlight the promising potential of La3+-doped BaFe2O4 nanoferrites for multifunctional applications in both energy storage and photocatalytic dye degradation. © 2024 Elsevier Ltd;
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