【摘要】 环境中Al³⁺、Ga3+、In³⁺的残留对人类健康和生态系统的威胁日益严重,但它们的特异性及快速检测目前还极具挑战。本文报道了一例水稳定的基于镉金属有机框架（Cd-MOF）的发光探针,其可以通过发光“开启”的形式高选择性地分别检测水溶液中的Al³⁺、Ga³⁺、In³⁺离子,相应的检测限分别为2.31、3.06、2.78μmol·L^-1。其在水溶液中工作的pH窗口为3～10。检测机制研究发现,这种“开启”型识别可归因于新结构的生成。更多还原

【Abstract】 The residues of Al³⁺,Ga³⁺,and In³⁺in the environment pose an increasingly serious threat to human health and ecosystems.However,their specific and rapid detection remains challenging.In this study,we present a water-stable cadmium metal-organic framework（Cd-MOF） based luminescence probe,which can detect Al³+,Ga³⁺,and In³⁺ions in aqueous solutions via a luminescence "turn-on" mode.The corresponding detection limits for the Al³⁺,Ga³⁺,and In³⁺ions were 2.31,3.06,and 2.78 μmol·L^-1,respectively.This probe operated effectively within a pH range of 3-10 in an all-aqueous environment.Investigations into the detection mechanism revealed that this "turn-on" recognition is attributed to the formation of new structures upon ion interaction.更多还原