A luminescent cadmium based MOF as selective and sensitive iodide sensor in aqueous medium
作者： Debal Kanti Singha , Prakash Majee , Sudip Kumar Mondal , Partha Mahata
DOI: 10.1016/J.JPHOTOCHEM.2018.01.024
关键词: Halide 、 Quenching (fluorescence) 、 Selectivity 、 Chemistry 、 Inorganic chemistry 、 Ion 、 Iodide 、 Luminescence 、 Cadmium 、 Aqueous two-phase system
摘要: Abstract A highly luminescent three–dimensional cadmium based metal–organic framework (Cd-MOF), 1, has been employed for the luminescence-based aqueous phase detection of iodide ion. Emission at 290 nm upon excitation 226 nm was used sensing ions in medium through very high luminescence quenching. It also observed that presence other common anions such as NO3−, H2PO4−, CH3COO−, Br−, SO42−, B4O72−, Cl−, CO32−, HPO42− and F− it shows negligible The selectivity performed halide (F−, Cl− Br−) quenching efficiency remains unaffected by ions. compound 1 sensitivity even low concentration regions towards with KSV (quenching constant on linear Stern–Volmer plot) value 1.8 × 104 M−1 limit 0.63 μM (80 ppb), which is among best known any selective sensor reported to date.
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