Preparation of magnetic Co–Fe layered double hydroxides and its adsorption properties for the removal of methyl orange

Journal of Chemical Research-s Pub Date : 2023-01-01 DOI:10.1177/17475198221150382

Yuye Xie, Fa-Ping Ye, Su-qin Zhao

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Abstract

In this study, Co–Fe layered double hydroxides are prepared by a hydrothermal method. The Co–Fe layered double hydroxides are used as an adsorbent for the investigation of the thermodynamic parameters and adsorption kinetics of methyl orange from aqueous solution. The results show that adsorption is affected by adsorbent dosage, adsorption time, and temperature. The characteristics of samples are investigated using X-ray powder diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, and N2 adsorption–desorption isotherms. The adsorption saturation level of Co–Fe layered double hydroxides on methyl orange is studied, with the results showing that the maximum uptake capacity for methyl orange is 10.21 mg g−1 based on Co–Fe layered double hydroxides. The adsorption kinetics of methyl orange is consistent with the Temkin isotherm equation and quasi-secondary kinetic model. Furthermore, separation is easily accomplished under the action of an applied magnetic field. The prepared Co–Fe layered double hydroxides can be applied as an effective adsorbent for decontamination of anionic dyes in industrial effluents.

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磁性钴铁层状双氢氧化物的制备及其对甲基橙的吸附性能

本研究采用水热法制备了Co-Fe层状双氢氧化物。以钴铁层状双氢氧化物为吸附剂，研究了甲基橙在水溶液中的吸附动力学和热力学参数。结果表明，吸附剂用量、吸附时间和吸附温度对吸附性能有影响。采用x射线粉末衍射、扫描电镜、傅里叶变换红外光谱和N2吸附-脱附等温线对样品的特征进行了研究。研究了Co-Fe层状双氢氧化物对甲基橙的吸附饱和水平，结果表明，Co-Fe层状双氢氧化物对甲基橙的最大吸收量为10.21 mg g−1。甲基橙的吸附动力学符合Temkin等温方程和准二次动力学模型。此外，在外加磁场的作用下，分离很容易完成。制备的钴铁层状双氢氧化物可作为工业废水中阴离子染料的有效吸附剂。

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来源期刊

Journal of Chemical Research-s 化学科学, 有机化学, 有机合成

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： The Journal of Chemical Research is a peer reviewed journal that publishes full-length review and research papers in all branches of experimental chemistry. The journal fills a niche by also publishing short papers, a format which favours particular types of work, e.g. the scope of new reagents or methodology, and the elucidation of the structure of novel compounds. Though welcome, short papers should not result in fragmentation of publication, they should describe a completed piece of work. The Journal is not intended as a vehicle for preliminary publications. The work must meet all the normal criteria for acceptance as regards scientific standards. Papers that contain extensive biological results or material relating to other areas of science may be diverted to more appropriate specialist journals. Areas of coverage include: Organic Chemistry; Inorganic Chemistry; Materials Chemistry; Crystallography; Computational Chemistry.