磁性可分离的Co0.6Fe2.4O4/MIL-101-NH2吸附剂用于刚果红色的高效去除
Zhenhong Zhang1, Yuye Zhong1, Peng Sun2
1School of Nursing, Wuhan University, Wuhan, 430079, People's Republic of China.
Environmental science and pollution research international
|January 9, 2024
概括
一种新的磁性复合物吸附剂有效地从水中去除刚果红 (CR) 染料. 这种材料具有很高的吸附能力,快速的磁性分离和良好的可重复使用性,为水处理提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 开发有效的吸附剂来去除污染物至关重要.
- 磁性复合材料在分离和重复使用方面具有优势.
- 金属有机框架 (MOF) 在吸附应用中显示出潜力.
研究的目的:
- 为了合成和描述一种新的磁性可分离复合材料,Co0.6Fe2.4O4/MIL-101-NH2.2.
- 评估吸附剂从水溶液中去除刚果红 (CR) 的效率.
- 研究吸附机制和影响参数.
主要方法:
- 在磁纳米粒子 (Co0.6Fe2.4O4) 上MIL-101-NH2的现场生长.
- 吸附参数的系统研究:吸附剂剂量,pH值,时间,温度和干扰离子.
- 对CR吸附的动力学,同热和热力学分析.
- 评估吸附剂的可重复使用性和CR对其他染料的选择性.
主要成果:
- 复合材料表现出高BET表面积和快速磁分离 (<30秒).
- CR吸附遵循伪二次动力学和兰格穆尔异热模型.
- 在298.15K时,最大吸附能力达到1756.19mg/g.
- 吸附剂在5个循环后保持了78%的容量.
- 吸附机制涉及π-π相互作用,静电力,键和金属协调.
结论:
- Co0.6Fe2.4O4/MIL-101-NH2复合物是一种高效的吸附剂,用于CR去除.
- 吸附剂表现出良好的容量,选择性和可重复使用性.
- 这种基于MOF的磁性复合材料显示出水处理和环境修复的巨大潜力.
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