1. Multifunctional-response Cd-LMOF based on triphenylamine with high selectivity for the detection of chromium ions.
- Author
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Chen, Wei-Min, Shao, Juan-Juan, Zhang, Yi, Xue, Zhen-Dong, Liu, Peng-Lai, Ni, Jian-Ling, and Wang, Fang-Ming
- Subjects
CHROMIUM ions ,TRIPHENYLAMINE ,FLUORIMETRY ,BLUE light ,SPECIAL effects in lighting ,METAL-organic frameworks - Abstract
A luminescent Cd-MOF is synthesized based on a triphenylamine-core ligand tris(4-(1H-imidazol-1-yl)phenyl)amine (TIPA), [Cd
2 (TIPA)2 (oba)2 ]n (LMOF-1, oba = 4,4′-oxybisbenzoic). Fluorescence analysis of LMOF-1 shows blue light which can be attributed to the double role of ligand-to-ligand charge transition (LLCT) and aggregation-induced emission (AIE) effect, indicating that it can be used as a potential LED phosphor. As a luminescent sensor, LMOF-1 has excellent performance in detecting Cr3+ , CrO4 2− , and Cr2 O7 2− in water. Significantly, the quenching coefficient (KSV ) of Cr3+ is 1.64 × 104 M−1 , which is greater than or comparable to those reported in the literature. Therefore, LMOF-1 may be an excellent multi-functional response and recyclable luminescent sensor. [ABSTRACT FROM AUTHOR]- Published
- 2023
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