功能化多层磁性淀粉基生物吸附剂的结构设计及其对莫西沙星的高效吸附

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-06-24 DOI:10.1016/j.colsurfa.2025.137583

Erming Ouyang , Zhe Hu , Jie Zhang , Xinrui Huang , Xincheng Jiang , Rui Zhao , Hongwei Yang

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引用次数: 0

摘要

开发高效、可回收的吸附剂去除废水中的莫西沙星（MOX）对生态安全至关重要。本文成功制备了具有特定形态和结构的功能化多层磁性淀粉基生物吸附剂（FStS）。通过各种表征分析了FStS的理化性质。考察了pH、温度、浓度、接触时间、离子强度和自然溶解有机物对FStS吸附MOX的影响。结果表明，FStS对MOX具有良好的吸附性能，且具有较宽的pH适应范围（6.0 ~ 10.0）。Freundlich等温模型和拟二级动力学模型较好地描述了吸附过程。此外，FStS具有良好的磁分离能力，可以有效地再生。通过一系列的分析，FStS对MOX的吸附主要受静电相互作用、氢键作用和π-π相互作用的控制。因此，FStS是一种很有前途的生物吸附剂，可以有效地去除废水中的MOX。

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Structural design of functionalized multilayer magnetic starch-based biosorbent and its efficient adsorption of moxifloxacin

Developing effective and recyclable adsorbents to remove moxifloxacin (MOX) from wastewater is crucial for the ecological safety. Herein, novel functionalized multilayer magnetic starch-based biosorbent (FStS) with specific morphological and structure was successfully fabricated to remove MOX. Physicochemical properties of FStS were analyzed by various characterizations. The influence of pH, temperature, concentration, contact time, ionic strength and naturally dissolved organic matter on the adsorption of MOX by FStS were comprehensively investigated. The results indicated that FStS exhibited good adsorption performance for MOX and displayed a wide pH adaptability range (6.0–10.0). The adsorption process was well depicted by the Freundlich isotherm model and pseudo-second-order kinetic model. Additionally, FStS possessed good magnetic separation ability and could be effectively regenerated. Through a series of analyses, the adsorption of MOX on FStS was mainly controlled by the electrostatic interaction, hydrogen bonding and π-π interaction. Thus, FStS is a promising biosorbent to effectively remove MOX from wastewater.

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.