EY@Zr-MOF复合材料的制备及在荧光传感检测Cr(Ⅵ)离子中的应用  

Preparation of EY@Zr-MOF composites and their application in fluorescence sensing detection of Cr(Ⅵ)ions

作　　者：王洋 刘洁 秦颖彤 翟薇丽 王志刚 李庆[1] WANG Yang;LIU Jie;QIN Yingtong;ZHAI Weili;WANG Zhigang;LI Qing(School of Environmental&Chemical Engineering,Xi′an Polytechnic University,Xi′an 710048,China;School of Textile Science and Engineering,Xi′an Polytechnic University,Xi′an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048 [2]西安工程大学纺织科学与工程学院,陕西西安710048

出　　处：《印染》2025年第2期6-11,共6页China Dyeing and Finishing

基　　金：国家自然科学基金面上项目(22078253);陕西省重点研发计划项目(2024GX-YBXM-322);陕西省重点研发计划项目(2024GXYBXM-326);西安工程大学研究生创新基金项目(chx2024022)。

摘　　要：针对荧光MOFs传感检测印染废水中Cr(Ⅵ)离子精准性较低的问题,将荧光染料曙红Y(EY)原位内嵌到Zr-MOF中,设计了EY@Zr-MOF复合材料。研究发现,EY@Zr-MOF能够对Cr(Ⅵ)离子进行高选择性荧光猝灭传感,即使在目标分析物与其他单一或混合阴/阳离子共存时,依然显示出高抗干扰检测能力。荧光演化研究发现,对Cr_(2)O_(7)^(2-)和CrO_(4)^(2-)离子的检出限(DL)值分别低至6.88μg/L和6.93μg/L,荧光猝灭常数(K_(SV))值分别高达1.55×10^(5) L/mol和1.05×10^(5) L/mol,并可在一定浓度范围内实现定量检测。To solve the problem of low accuracy in detection of Cr(Ⅵ)ions in dyeing wastewater,a EY@Zr-MOF composite material is successfully designed by in situ embedding the fluorescence dye Eosin Y(EY)into Zr-MOF.The results show that EY@Zr-MOF enables highly selective fluorescence quenching sensing of Cr(Ⅵ)ions,exhibiting high anti-interference detection ability even when the target analytes coexist with other single or mixed negative/cations.Fluorescence evolution study reveals that its detection limit(DL)values are as low as 6.88μg/L and 6.93μg/L,with the fluorescence quenching constant(K_(SV))values of 1.55×10^(5) L/mol and 1.05×10^(5) L/mol,respectively.And the target analytes can be quantitatively detected within a certain concentration range.

关 键 词：Zr-有机框架 后修饰 Cr(Ⅵ) 荧光传感检测 高灵敏性 废水处理 

分 类 号：TS199[轻工技术与工程—纺织化学与染整工程]