Magnetic solid phase adsorption of ceftiofur sodium in water by deep eutectic solvent modified banana peel-MnFe2O4 biochar

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-03 DOI:10.1002/jccs.202400087

Jing Chen, Hanyue Luo, Rui Lei, Cuiping Li, Xueqin Ding

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Abstract

Magnetic solid phase adsorption separation (MSPA) technology is an efficient and convenient separation method, which can simplify the separation step and shorten the separation time. It has wide application value in the purification of antibiotic pollutants in water. In this study, a novel magnetic biochar adsorbent (DES₁@MnFe₂O₄-BBC) with strong selectivity and high adsorption capacity was synthesized. It was composed of banana peel as the biochar source, Mn/Fe bimetallic oxide as the magnetic source and deep eutectic solvent (DES) as the functional monomer. The physicochemical properties of DES₁@MnFe₂O₄-BBC were systematically characterized by nitrogen adsorption–desorption, synchronous thermal analyzer, vibrating sample magnetometer, X-ray diffractometer, X-ray photoelectron spectroscopy, and field emission electron microscopy. The adsorption conditions were optimized by the single-factor optimization method. Also, under the optimal adsorption conditions, the maximum adsorption capacity of DES₁@MnFe₂O₄-BBC for ceftiofur sodium was 75.01 mg·g⁻¹. The test of adsorption thermodynamics and kinetics illustrated that the Langmuir isotherm adsorption model and pseudo-second-order kinetic equation were suitable well with the adsorption system established in this article. Adsorbent regeneration cycle experiment revealed that the DES₁@MnFe₂O₄-BBC was an efficient and reusable adsorbent. In the end, all research proves the novel magnetic adsorbent synthesized in this study can provide a new idea for the removal of antibiotics in water.

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深共晶溶剂改性香蕉皮-锰铁氧化物生物炭对水中头孢噻呋钠的磁性固相吸附

磁性固相吸附分离（MSPA）技术是一种高效便捷的分离方法，可简化分离步骤，缩短分离时间。它在净化水中抗生素污染物方面具有广泛的应用价值。本研究合成了一种选择性强、吸附容量大的新型磁性生物炭吸附剂（DES1@MnFe2O4-BBC）。它由香蕉皮作为生物炭源，Mn/Fe 双金属氧化物作为磁源，深共晶溶剂（DES）作为功能单体组成。通过氮吸附-解吸、同步热分析仪、振动样品磁力计、X射线衍射仪、X射线光电子能谱和场发射电子显微镜对DES1@MnFe2O4-BBC的理化性质进行了系统表征。采用单因素优化法对吸附条件进行了优化。在最佳吸附条件下，DES1@MnFe2O4-BBC 对头孢噻呋钠的最大吸附量为 75.01 mg-g-1。吸附热力学和动力学测试表明，Langmuir 等温线吸附模型和伪二阶动力学方程与本文所建立的吸附体系非常适合。吸附剂再生循环实验表明，DES1@MnFe2O4-BBC 是一种高效且可重复使用的吸附剂。最后，所有的研究都证明了本研究合成的新型磁性吸附剂可以为去除水中的抗生素提供一种新的思路。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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