Fabrication of two 3D Ln-MOFs as highly sensitive luminescent sensors for Fe3+ and Cr3+ ions

被引：0

作者：

Chen, Shu-Jun ^{[1
]}

He, Tong ^{[1
]}

Diao, Xi-Hui ^{[1
]}

Muhammad, Yaseen ^{[4
]}

Liu, Na ^{[3
]}

Chen, Chao ^{[1
]}

Wang, Hao ^{[1
,2
]}

Li, Wei ^{[1
]}

Qi, Chuan-Song ^{[1
]}

机构：

[1] Beijing Key Laboratories of Special Elastomer Composite Materials, College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing

[2] Hebei Key Laboratory of Heterocyclic Compounds, Handan University

[3] Department of Chemistry, Hengshui University, Hengshui

[4] Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa

来源：

Journal of Solid State Chemistry | 2024年 / 339卷

关键词：

Fluorescence sensor; Lanthanide metal-organic framework; Metal ions; Quenching mechanism;

D O I：

10.1016/j.jssc.2024.124988

中图分类号：

学科分类号：

摘要：

Two new isostructural lanthanide(III)−metal organic frameworks (Ln-MOFs), namely [Ln2(FDA)3(TMS)2(H2O)2]·H2O (Ln = Eu 1 and Tb 2, H2FDA = 2,5-furandicarboxylic acid, TMS = tetramethylene sulfone), have been synthesized and characterized. Single-crystal X-ray diffraction analysis reveals that both Ln-MOFs exhibit three-dimensional structures crystallizing in the monoclinic C2/c space group. Luminescent sensing studies indicate that 1 and 2 possess commendable capabilities for detecting Fe3+ and Cr3+, with low detection limits of 20.00 nM and 43.41 nM for 1 and 66.10 nM and 0.37 μM for 2, respectively. Furthermore, the investigation into the mechanism revealed the quenching of Fe3+ can be ascribed to the dual effects of inner filter effect (IFE) and the static quenching. Conversely, the dynamic quenching mechanism has played a predominant role during the sensing process of Cr3+. © 2024 Elsevier Inc.

引用

共 66 条

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