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微重力度建模-一种用于提取功能化MIL-101的吸附参数的新方法 (Cr)

Xu Zhang¹, Bo Tian¹, Zhiheng Ma¹

¹NEST Laboratory, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China.

Nanomaterials (Basel, Switzerland)

|July 29, 2023

概括

使用乙烯基胺功能化的MIL-101 (Cr) 的新传感器提供了对有害空气污染物甲的敏感检测. 这种材料显示出出色的选择性和实时环境监测的潜力.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
化学工程是化学工程的重要组成部分.

背景情况:

甲是一种来自室内来源的挥发性空气污染物,具有健康风险.
实时,低度甲检测对公共卫生至关重要.
现有的检测方法可能缺乏灵敏度或选择性.

研究的目的:

开发一个敏感和选择性的甲传感器.
为了研究功能化的MIL-101 (Cr) 材料的气体传感机制.
评估以乙二胺功能化的MIL-101 (ED-MIL-101 (Cr)) 对于甲监测的潜力.

主要方法:

用乙二胺功能化的MIL-101 (ED-MIL-101 (Cr)) 制剂.
使用悬臂传感器评估气体传感性能.
准现场红外光谱学用于研究相互作用机制.
吸附度计算,以了解结合特性.

主要成果:

与裸体MIL-101Cr相比,ED-MIL-101Cr表现出优越的甲气体传感性能.
相互作用机制涉及希夫基形成,表明化学吸附能力较弱 (-52.6 kJ/mol).
ED-MIL-101 ((Cr) 显示出良好的选择性,更大的响应值,由于更活跃的位点,更长的和时间.

结论:

ED-MIL-101 ((Cr) 是用于敏感和选择性甲检测的有希望的材料.
实验和计算方法的结合阐明了气体传感机制.
这项研究突出了实际甲监测应用的巨大潜力.

关键词:

甲的传感器是甲.动力参数动力参数金属有机框架 (MOFs) 是一种金属有机框架.微重力度分析方法的微重力度分析方法.热力学参数的热力学参数

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