Europium Activated Aluminum Organic Frameworks for Highly Selective and Sensitive Detection of Fe and Cr(Ⅵ) in Aqueous Solution

作     者：ZHANG Zhen FANG Qi-Hui ZHUANG Zan-Yong HAN Yang LI Ling-Yun YU Yan ZHANG Zhen;FANG Qi-Hui;ZHUANG Zan-Yong;HAN Yang;LI Ling-Yun;YU Yan

作者机构：Key Laboratory of Eco-materials Advanced TechnologyCollege of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学（英文）)

年 卷 期：2020年第39卷第11期

页      面：1958-1964页

核心收录：

学科分类：08[工学] 080202[工学-机械电子工程] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 

基　　金：Supported by the Natural Science Foundation of Fujian Province (2017J01746) National Natural Science Foundation of China (51972061) 

主　　题：luminescent sensor selective detection quenching mechanism 

摘      要：The aluminum based MOFs compound, MIL-96(Al), has been studied as a luminescence sensor by incorporating of Eu3+ ions, which renders the compound strong red-light emission. The as-synthesized MIL-96(Al):Eu3+ nanocrystals exhibit water dispersibility and environmental stability, which are general requirement for an ideal sensing material. The MIL-96(Al):Eu3+ nanocrystals show excellent selective detection ability on Fe3+ ions in aqueous solution with value of low detection limit 20 μM. Meanwhile, it also exhibits excellent selective detection ability on CrO42- and Cr2O72- in aqueous solution with value of low detection limit 10 and 22 μM, respectively. The results of this study show that MIL-96(Al):Eu3+ nanocrystals could be used as a multi-responsive luminescent senor for Fe3+ and Cr(Ⅵ) species in aqueous solution. The possible luminescence quenching mechanism has also been discussed.