Nano-Micro Letters

Metal-Organic Framework-Based Sensors for Environmental Contaminant Sensing

Xian Fang1, 2, †, Boyang Zong1, 2, †, Shun Mao1, 2, *

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Nano-Micro Lett. (2018) 10: 64

First Online: 24 June 2018 (Review)


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Increasing demand for timely and accurate environmental pollution monitoring and control requires new sensing techniques with outstanding performance, i.e., high sensitivity, high selectivity, and reliability. Metal-organic frameworks (MOFs), also known as porous coordination polymers, are a fascinating class of highly ordered crystalline coordination polymers formed by the coordination of metal ions/clusters and organic bridging linkers/ligands. Owing to their unique structures and properties, i.e., high surface area, tailorable pore size, high density of active sites, and high catalytic activity, various MOF-based sensing platforms have been reported for environmental contaminant detection including anions, heavy metal ions, organic compounds, and gases. In this review, recent progress in MOF-based environmental sensors is introduced with a focus on optical, electrochemical, and field-effect transistor sensors. The sensors have shown unique and promising performance in water and gas contaminant sensing. Moreover, by incorporation with other functional materials, MOF-based composites can greatly improve the sensor performance. The current limitations and future directions of MOF-based sensors are also discussed.



Metal-organic frameworks; Environmental contaminant; Optical sensor; Electrochemical sensor; Field-effect transistor sensor; Micro- and nanostructure

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