导电体
铜
材料科学
纳米技术
金属有机骨架
薄膜
金属
冶金
化学
复合材料
有机化学
吸附
作者
Heejung Roh,Tyler J. Quill,Gan Chen,Huaxin Gong,Yeongsu Cho,Heather J. Kulik,Zhenan Bao,Alberto Salleo,Aristide Gumyusenge
出处
期刊:ACS Nano
[American Chemical Society]
日期:2025-02-08
标识
DOI:10.1021/acsnano.4c16212
摘要
Perfluoroalkyls (PFAS) continue to emerge as a global health threat making their effective detection and capture extremely important. Though metal-organic frameworks (MOFs) have stood out as a promising class of porous materials for sensing PFAS, detection limits remain insufficient and a fundamental understanding of detection mechanisms warrants further investigation. Here, we show the use of a 2D conductive MOF film based on copper hexahydroxy triphenylene (Cu-HHTP) to fabricate chemiresistive sensing devices for detecting PFAS in drinking water. We further show ultrasensitive detection using electrochemical impedance spectroscopy. Owing to excellent electrostatic attractions and electrochemical interactions between the copper-based MOF and PFAS, confirmed by high-resolution spectroscopy and theoretical simulations, the MOF-based sensor reported herein exhibits excellent affinity and sensitivity toward perfluorinated acids at concentrations as low as 0.002 ng/L.
科研通智能强力驱动
Strongly Powered by AbleSci AI