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希夫基功能化二甲基粉用于增强去除Cu (II):制备,性能,DFT计算

Le Liang¹, Mei Han¹, Yong-Qing Liu¹

¹School of Chemical Engineering, GuizhouMinzuUniversity, Guiyang 550025, PR China.

International journal of biological macromolecules

|April 14, 2024

概括

一种新型的吸附剂,二甲基粉修改为2-二胺 (HYD-DAS),有效地从水中去除Cu (II) 离子. 这种材料具有很高的吸附能力,选择性和可重复使用性,为重金属整治提供了一个有前途的解决方案.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
吸附技术吸附技术是一种吸附技术.

背景情况:

二甲基粉 (DAS) 是一种用于化学修饰的多功能材料.
从水溶液中有效去除铜 (II) 离子对于环境保护至关重要.
开发高效且可重复使用的吸附剂是水处理的关键挑战.

研究的目的:

为了合成和描述一种新的吸附剂,HYD-DAS,用于Cu (II) 离子去除.
研究HYD-DAS对Cu (II) 离子的吸附性能和机制.
评估HYD-DAS的选择性和可重复使用性.

主要方法:

通过DAS和2-hydrazinopyridine的反应合成HYD-DAS.
使用FT-IR,元素分析和SEM进行表征.
批量吸附实验用于研究pH,异热,动力学和热力学.
用于机制阐明的XPS和DFT计算.

主要成果:

HYD-DAS表现出Cu (II) 离子的高效吸附,其容量为195.75mg/g.
在250分钟内达到吸附平衡,去除率为98.63%.
吸附过程遵循兰木尔单层模型和准二阶动力学,表明自发的内热性质.

结论:

HYD-DAS是一种高效,选择性和可重复使用的吸附剂,用于Cu (II) 离子去除.
吸附机制涉及Cu (II) 与HYD-DAS中的原子的组合.
这种改性粉为处理含铜污染的废水提供了一种可持续的方法.

关键词:

在Cu (II) 吸附过程中,Cu (II) 吸附 DFT计算的计算方法功能化二甲基粉功能化二甲基粉氨酸 (Hydrazine) 和氨酸 (Pyridine) 是一种氨酸.这里是船只基地.视觉化的可视化

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