【摘 要】
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We herein report a new lanthanide metal-organic framework (MOF) that exhibits excellent chemical stability,especially in the aqueous solution over a wide pH range from 1 to 14.In contrast to many reported lanthanide MOFs,this Tb-based MOF emits cyan fluor
【机 构】
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School of Materials Science and Engineering,National Institute for Advanced Materials,Tianjin Key La
论文部分内容阅读
We herein report a new lanthanide metal-organic framework (MOF) that exhibits excellent chemical stability,especially in the aqueous solution over a wide pH range from 1 to 14.In contrast to many reported lanthanide MOFs,this Tb-based MOF emits cyan fluorescence inherited from the integrated AIE-active ligand,rather than Ln3+ ions.More remarkably,its fluorescence signal features a highly selective and sensitive \"turn-off\'response toward CrO42,Cr2O72-and Fe3+ ions,highlighted with the low detection limits down to 68.18,69.85 and 138.8 ppm,respectively.Thus,the exceptional structural stability and sensing performance render this material able to be a superior luminescent sensor for heavy metal ions in wastewater.
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