相关实验视频

Updated: Apr 12, 2026

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

危险的2,4,6-Trinitrophenol (TNP) 在水中通过氨基和亚氨基检测功能化的金属有机框架

Manpreet Kaur^1,2, Ashok Kumar Malik³

¹Department of Applied Sciences, CEC-Chandigarh Group of Colleges, Landran, Mohali, Punjab, 140307, India.

Journal of fluorescence

|May 15, 2024

概括

一种基于的新型金属有机框架,TMU-17-NH2,可以选择性地检测水中的2,4,6-三烯 (TNP). 这种光传感器为检测爆炸性化合物提供了高灵敏度和选择性.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
化学传感器化学传感器

背景情况:

金属有机框架 (MOF) 为各种应用提供可调节的特性.
选择性检测危险的酸芳香化合物,如2,4,6-酸 (TNP) 对于安全和环境监测至关重要.
开发用于爆炸物的敏感和选择性光传感器仍然是一个重大挑战.

研究的目的:

为了合成和表征一种新的氨基和亚氨基功能化Zn ((II)) 基MOF,TMU-17-NH2.2.
研究TMU-17-NH2的光发光特性,用于选择性检测2,4,6-三丁醇 (TNP).
评估基于MOF的传感器在水中检测TNP的传感机制和性能.

主要方法:

使用2-aminoterephthalic 酸和1,4-bis(4-pyridyl) -2,3-diaza -2,3-butadiene 连接物进行TMU-17-NH2的溶热合成.
结晶学分析以确定3D立方体结构和功能组装饰.
光发光光谱学用于研究对TNP和其他爆炸物的传感行为.
密度函数理论 (DFT) 计算以阐明传感机制.

主要成果:

在孔隙表面成功合成TMU-17-NH2与氨基和亚氨基组.
在水中存在TNP时,TMU-17-NH2表现出选择性关闭光火.
实现了TNP的9.4ppb的低检测极限 (LOD),与其他氧爆炸物相比具有高选择性.
具有高灵敏度,斯特恩-沃尔默火常数 (Ksv) 为 3.26 × 10^4 M^-1.

结论:

合成的TMU-17-NH2 MOF是一种有效的光传感器,用于选择性和敏感地检测TNP.
在MOF毛孔中的氨酸和氨酸功能在传感机制中起着关键作用.
这种基于MOF的光传感平台为环境和安全应用中检测危险的酸芳香化合物提供了有前途的方法.

关键词:

2,4,6-三二烯醇 (TNP) 是一种密度函数理论 (DFT) 是一种密度函数理论.光传感器是一个光传感器.金属有机框架 (MOF) 是一种金属有机框架.希夫基结合物是基基结合物.频谱的重叠是因为光谱的重叠.

更多相关视频

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks

Published on: April 28, 2023

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior

Published on: March 8, 2024

相关概念视频

2° Amines to N-Nitrosamines: Reaction with NaNO2

2° Amines to N-Nitrosamines: Reaction with NaNO₂

Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.

Physical Properties of Amines

Physical Properties of Amines

Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.