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基于碳氧甲基纤维素的磁性离子热凝用于减轻水污染

Andra-Cristina Enache¹, Ionela Grecu¹, Petrisor Samoila¹

¹Laboratory of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania.

Gels (Basel, Switzerland)

|May 26, 2023

概括

由碳甲基纤维素 (CMC) 制成的新型磁性水凝珠有效地从废水中去除甲蓝 (MB). 这些可重复使用的吸附剂具有很高的吸附能力,并容易分离,为净化水提供可持续的解决方案.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
聚合物科学聚合物科学

背景情况:

污染废水的危险化学品,如甲蓝 (MB) 构成重大环境风险.
开发高效和成本效益的吸附剂材料对于水资源整治至关重要.
基于氧甲基纤维素 (CMC) 的水凝具有潜力,但需要改进以提高性能和分离.

研究的目的:

设计和合成稳定性离子热水凝,其中包括铁酸盐 (MnFe2O4) 和二甲硫酸盐 (SDS),用于危险化学品的去除.
为了评估这些磁性水凝珠的吸附能力和效率,从污染的废水中检测出甲蓝 (MB).
研究开发的磁吸剂的吸附机制,动力学,热力学和可重复使用性.

主要方法:

使用碳糖甲基纤维素 (CMC),二甲基硫酸盐 (SDS) 和铁酸盐 (MnFe2O4) 合成磁珠.
使用SEM,EDX,FTIR和VSM进行吸附性质的表征.
吸附性研究包括动力学,异热学和热力学分析.
分子对接模拟以阐明相互作用机制.

主要成果:

合成的磁性水凝珠显示出出色的形态,结构和磁性特性.
兰穆尔异热模型预测了在300K时的最大吸附能力为234mg/g,吸附动力学最好用PFO模型来描述.
吸附过程是自发的和外热的,吸附剂表现出高的可重复使用性,在乙中具有93%的脱吸效率.
分子对接揭示了德瓦尔斯和静电力在CMC-MB相互作用中的重要贡献.

结论:

结合MnFe2O4和SDS的稳定性离子热水凝是有效的,廉价的磁吸附剂,用于从废水中去除MB.
磁性水凝珠具有高吸附能力,高效的分离和良好的可重复使用性,为水处理提供了可持续的解决方案.
通过分子对接来理解相互作用机制,有助于先进吸附材料的合理设计.

关键词:

生物吸收剂生物吸收剂碳甲基纤维素的碳甲基纤维素.染料吸附染料的吸附方式离子热水凝是一种离子热水凝.磁性珠子磁性珠子矿铁酸盐是一种铁酸盐.分子对接的分子对接.硫酸二甲二甲硫酸的使用方法

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