植物辅助合成磁性NiFe2O4纳米复合材料,利用白芍甲醇提取物从水溶液中有效去除抗生素:平衡、动力学、等温线和热力学的研究

IF 2.1 4区 环境科学与生态学 Q2 ENGINEERING, CIVIL
Elham Derakhshani, Ali Naghizadeh, Sobhan Mortazavi-Derazkola
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引用次数: 0

摘要

摘要本研究以白芍甲醇提取物为原料制备了磁性纳米NiFe2O4复合材料,并将其用于去除青霉素G。场发射扫描电镜、x射线粉末衍射、傅里叶变换红外、VSM和能量色散谱图分析结果表明,该纳米复合材料的合成效果良好,尺寸约为50-70 nm。在最佳条件下,磁性NiFe2O4纳米复合材料的最大吸附容量为22.95 mg/g。此外,磁性NiFe2O4纳米复合材料吸附青霉素G的实验数据表明,ΔH和ΔS为正,ΔG为负,符合R2 = 0.99的Temkin等温线模型,符合拟二级动力学模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Phyto-assisted synthesis of magnetic NiFe2O4 nanocomposite using the Pulicaria gnaphalodes methanolic extract for the efficient removal of an antibiotic from the aqueous solution: a study of equilibrium, kinetics, isotherms, and thermodynamics
Abstract In this research, the magnetic NiFe2O4 nanocomposite was synthesized using Pulicaria gnaphalodes methanolic extract and applied to remove penicillin G from aqueous solutions. The results of field emission scanning electron microscopy, X-ray powder diffraction, Fourier transform infrared, VSM, and energy-dispersive spectroscopy-mapping analyses showed that this nanocomposite was well synthesized with a size of approximately 50–70 nm. The maximum adsorption capacity of the magnetic NiFe2O4 nanocomposite was 22.95 mg/g under optimal conditions. In addition, the experimental data of penicillin G adsorption by the magnetic NiFe2O4 nanocomposite showed that ΔH and ΔS values were positive and ΔG was negative and were following the Temkin isotherm model with R2 = 0.99 and follows the pseudo-second-order kinetic model.
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CiteScore
4.10
自引率
21.10%
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20 weeks
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