Equilibrium, Kinetic and Thermodynamic Studies of Adsorption Behaviour of 3D Porous NiFe Nanoparticles for The Removal of Antacid Drug Ranitidine from Waste Water

Analytical Chemistry Letters Pub Date : 2022-09-03 DOI:10.1080/22297928.2022.2132875

Arvind Parashar, R. Jain, K. S. Thakur, R. Jain

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Abstract

Abstract The adsorption of the ranitidine on 3D porous NiFe2O4 nanoparticles was studied under different experimental conditions. Adsorbent used in this study, was characterized by SEM, XRD, EDX and BET. The prepared highly pure 3D porous NiFe2O4 nanoparticles displayed a high specific surface area of 65.179 m2/g with a total pore volume of 8.495 nm. The effect of ranitidine concentration, mass of 3D porous NiFe2O4 nanoparticles as adsorbent, contact time (5-30 min.), temperature (30–50 0C), and pH (2-10) on adsorption process were investigated. The adsorption of ranitidine reached equilibrium within 15 min, indicating that 3D porous NiFe2O4 is a promising adsorbent for removing pharmaceuticals from aqueous media. Equilibrium isotherms for the adsorption viz, Freundlich, Langmuir and DR equation were applied and determined characteristic parameters for each adsorption isotherm. Thermodynamic analysis of the adsorption data showed negative ΔG0 and positive ΔH0 suggesting that the adsorption was a spontaneous and endothermic process, associated with mainly physical adsorption.

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三维多孔NiFe纳米颗粒吸附废水中抗酸药物雷尼替丁的平衡、动力学和热力学研究

摘要在不同的实验条件下，研究了雷尼替丁在三维多孔NiFe2O4纳米颗粒上的吸附。采用SEM、XRD、EDX和BET对吸附剂进行了表征。制备的高纯度三维多孔NiFe2O4纳米颗粒比表面积为65.179 m2/g，总孔体积为8.495 nm。考察了雷尼替丁浓度、三维多孔NiFe2O4纳米颗粒吸附剂质量、接触时间(5 ~ 30 min)、温度(30 ~ 50℃)和pH(2 ~ 10)对吸附过程的影响。对雷尼替丁的吸附在15 min内达到平衡，表明三维多孔NiFe2O4是一种很有前途的去除水介质中药物的吸附剂。采用Freundlich方程、Langmuir方程和DR方程等吸附平衡等温线，确定了各吸附等温线的特征参数。吸附数据的热力学分析结果为负ΔG0和正ΔH0，表明吸附是一个自发的吸热过程，以物理吸附为主。

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来源期刊

Analytical Chemistry Letters

CiteScore

2.30

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0.00%

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