化学
荧光
废水
金属有机骨架
水溶液中的金属离子
水溶液
选择性
产量(工程)
自来水
分析化学(期刊)
离子
检出限
吸附
色谱法
催化作用
有机化学
环境工程
物理
材料科学
量子力学
工程类
冶金
作者
Yifan Xia,Guirong Bao,Xiong-Xin Peng,Xinyu Wang,Hongbin Lu,Yufei Zhong,Wei Li,He Jun,Si-Yi Liu,Qinghua Fan,Sihan Li,Wenjun Xiao,Hou-Qun Yuan
标识
DOI:10.1016/j.aca.2022.340115
摘要
A novel dual-emissive Eu3+-loaded metal–organic framework (MOF) is designed and successfully fabricated by introducing 2-hydroxyterephthalic acid (H2BDC-OH) and Eu3+ ions into an UiO-66-type MOF material. The obtained MOF, here referred to as EuUCH, exhibits dual emission at 450 and 614 nm, and both emissions are quite stable in aqueous media in the pH range of 4–11. EuUCH is characterized by a high selectivity and sensitivity toward Fe3+ and Al3+, which yield different responsive modes. The two emissions of EuUCH are quenched by Fe3+; by contrast, only the emission at 450 nm is quenched by Al3+ showing a ratiometric fluorescence signal. More importantly, as there is no clear interference between the signals of Fe3+ and Al3+, EuUCH is successfully utilized for the simultaneous detection of Fe3+ and Al3+ in their mixtures. In addition, the simultaneous quantification of Fe3+ and Al3+ is achieved in more complicated swine wastewater with good recoveries. This work provides a water-stable dual-emissive probe and the possibility to achieve the simultaneous quantification of Fe3+ and Al3+ in complicated environment wastewater.
科研通智能强力驱动
Strongly Powered by AbleSci AI