MIL-88B ((Fe) -NH):一种氨基功能化的金属有机框架,用于用于对Cd2+,Pb2+和Cu2+离子检测的敏感电化学传感器
Luyen T Tran1, Hue T M Dang1, Hoang V Tran1
1School of Chemical Engineering, Hanoi University of Science and Technology 1 Dai Co Viet Road, Hai Ba Trung District Hanoi 100000 Vietnam hue.dangthiminh@hust.edu.vn hoang.tranvinh@hust.edu.vn.
RSC advances
|July 21, 2023
概括
这项研究引入了一种新的电化学传感器,使用氨基功能化金属有机框架 (MIL-88B(Fe) -NH2) 来检测水中的多重金属离子. 传感器对,和铜离子具有很高的灵敏度和选择性.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 水中的重金属污染对环境和健康构成重大风险.
- 准确而敏感的重金属离子检测方法对于水质监测至关重要.
- 金属有机框架 (MOF) 为开发先进的电化学传感器提供了独特的特性.
研究的目的:
- 开发一种新的电化学平台,用于同时检测水中的多重金属离子.
- 用MIL-88B(Fe) -NH2功能化玻璃碳电极 (GCE) 进行增强的金属离子捕获和传感.
- 为了评估制造的传感器的性能,可靠性和选择性.
主要方法:
- 使用溶热方法合成氨基功能化的MIL-88B(Fe) -NH2.
- 使用XRD,SEM,TEM,FT-IR,CV和EIS进行MIL-88B (Fe) -NH2的表征.
- 用MIL-88B(Fe) -NH2通过滴来修改GCE表面.
- 电化学检测Cd2+,Pb2+和Cu2+使用微分脉冲电压计 (DPV).
主要成果:
- 经过MIL-88B (Fe) -NH2修改的GCE在重金属离子检测方面表现出卓越的电化学性能.
- 传感器实现了广泛的线性检测范围:Cd2+为0.025-1000μM,Pb2+为0.3-10.0μM,Cu2+为0.6-10.0μM.
- 实现了低检测极限:Cd2+为2.0×10-10M,Pb2+为1.92×10-7M,Cu2+为3.81×10-7M.
- 传感器显示出高可靠性和对目标金属离子的良好的选择性.
结论:
- 开发的基于MIL-88B ((Fe) -NH2修饰的GCE的电化学平台对敏感和选择性的多重金属离子检测有效.
- 在MIL-88B(Fe) -NH2中丰富的氨基群促进金属离子的丰富,增强传感能力.
- 这种基于MOF的传感器在水质评估和环境监测方面的实际应用方面显著有前途.
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