氧化锌对溶胶-凝胶法制备的氧化镍铁氧体(ZnO-NiFe2O4)纳米复合材料结构磁光介电和抗菌性能的影响

IF 4.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR
T. Veeramani , C. Venkataraju , G. Ramesh , A. Dinesh , Lalitha Gnanasekaran , Rajendra P. Patil , Manikandan Ayyar
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引用次数: 0

摘要

本研究探讨了 ZnO-NiFe2O4 纳米复合材料(NCs)的结构、光学、磁介质和抗菌特性。采用溶胶-凝胶法单独合成了尖晶石镍铁氧化物和氧化锌粉末。然后利用超声波技术制备了一系列 (1-x)NiFe2O4+xZnO (x = 0.0、0.15、0.30 和 0.45)NC。粉末 XRD 图谱证实了纳米复合材料中存在尖晶石 NiFe2O4 和 ZnO 峰。观察结果表明,随着纳米复合材料中氧化锌含量的增加,晶格常数从 8.372 Å 增加到 8.383 Å。随着纳米复合材料中氧化锌含量的增加,在 1 kHz 频率下测量的介电常数从 496 降至 403。然而,在外加磁场为 7000 Oe 时,NF0.4/ZnO0.6 NC 在 1 kHz 下测得的介电常数从 403 增加到 583。与纯 NiFe2O4 相比,含有 ZnO 的尖晶 NiFe2O4 显示出较低的饱和磁化(Ms)和矫顽力。所有成分的磁电容(MC%)与磁场的函数关系均为正响应。与 NiFe2O4(40 µg/ml)相比,NF0.55/ZnO0.45(40 µg/ml)NC 显示出更好的抗菌活性。这项研究可能会扩大这种复合材料作为超级电容器电极材料的应用范围。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Influence of ZnO on structural magneto-optical dielectric and antibacterial properties of NiFe2O4 (ZnO-NiFe2O4) nanocomposites prepared by sol–gel method

Influence of ZnO on structural magneto-optical dielectric and antibacterial properties of NiFe2O4 (ZnO-NiFe2O4) nanocomposites prepared by sol–gel method
The present work investigates the structural, optical, magneto-dielectric and antibacterial characteristics of ZnO-NiFe2O4 nanocomposites (NCs). Spinel NiFe2O4 and ZnO powders were synthesized individually by the sol–gel method. Then by using the ultrasonification technique, a series of (1-x)NiFe2O4+xZnO (x = 0.0, 0.15, 0.30, and 0.45) NCs were prepared. Powder XRD pattern confirms the existence of both spinel NiFe2O4 and ZnO peaks in the nanocomposites. The observation reveals that as the amount of ZnO in the nanocomposite, there is an increase in the lattice constant from 8.372 Å to 8.383 Å. The addition of ZnO in the nanocomposites broadens the light-absorbing range and raises the band gap (eV) energy from 1.7 eV to 2.5 eV. The dielectric constant measured at 1 kHz decreased from 496 to 403 as the ZnO content in the nanocomposite increased. However, the dielectric constant for NF0.4/ZnO0.6 NCs measured at 1 kHz increased from 403 to 583 for an applied magnetic field of 7000 Oe. Spinel NiFe2O4 with ZnO content shows lesser saturation magnetization (Ms) and coercivity compared to pure NiFe2O4. The magneto-capacitance (MC%) as a function of the magnetic field for all composition shows a positive response. NF0.55/ZnO0.45 (40 µg/ml) NCs showed better antimicrobial activity as compared to NiFe2O4 (40 µg/ml). This study may extend the scope of this composite as an electrode material in supercapacitors.
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来源期刊
Inorganic Chemistry Communications
Inorganic Chemistry Communications 化学-无机化学与核化学
CiteScore
5.50
自引率
7.90%
发文量
1013
审稿时长
53 days
期刊介绍: Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.
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