|Title:||Water- And thermal-stable silver-based photoluminescent metal-organic coordination polymer for highly selective lead ion sensing||Authors:||Wu, Kevin C.W.
Chiang, Wei Hung
Van Nguyen, Chi
|Keywords:||Lead detection | Silver-based MOCP | Water stable||Issue Date:||1-Jan-2019||Journal Volume:||92||Journal Issue:||9||Source:||Bulletin of the Chemical Society of Japan||Abstract:||
© 2019 The Chemical Society of Japan. Photoluminescent metal-organic coordination polymers (PLMOCPs) have recently become an attractive material for sensing applications, however, fundamental study of PLMOCP for selective metal ion sensing is still lacking. Here, we report a highly water-stable silver-based photoluminescent metal-organic coordination polymer (PLMOCP) of Ag(BPY)(IPA-NH2) with 404 nm emission as a single probe for selectively detecting Pb2+ in aqueous solutions. The as-synthesized Ag(BPY)(IPA-NH2) was characterized with a high yield, well-defined crystalline structure, extraordinary water and thermal stabilities, and unique optical properties. A high quenching constant of 2*10^4 M11 and low limit of detection (LOD) of 2.1 ¯M are determined. Systematic absorbance and PL spectroscopic studies suggest that the PL quenching caused by Pb2+ is the simultaneous dynamic quenching mechanism.
|Appears in Collections:||化學工程學系|
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