Lanthanide post-functionalized UiO-67 type metal-organic frameworks for tunable light-emission and stable multi-sensors in aqueous media

authors	Guo, HD; Wang, FY; Ma, RD; Zhang, M; Fu, LS; Zhou, T; Liu, S; Guo, XM
nationality	International
journal	INORGANICA CHIMICA ACTA
author keywords	MOFs; Lanthanide; Sensor; UiO-67; Tunable emission
keywords	ELECTRONIC-ENERGY LEVELS; MIXED-LIGAND STRATEGY; FLUORESCENT-PROBE; LN-MOFS; AQUO IONS; LUMINESCENCE; ADSORPTION; FE3+; PHOTOLUMINESCENCE; EFFICIENT
abstract	As well known, Zr-based UiO-type MOFs exhibit extraordinary high thermal and chemical stability, making them excellent candidates for new kinds of host materials. In this work, A UiO-67 type MOF (UiO-67-PO) has been successfully synthesized based on a lanthanide-affinity pyridin-4(1H)-one decorated dicarboxylate ligand. Post-functionalization with Tb3+ and Eu3+ (Tb1-x/Eu-x@UiO-67-PO, x = 0 to 1.0) afforded tunable green <-> yellow <-> red light-emitting materials. Tb@UiO-67-PO shows strong luminescence and water stability, which can be served as an efficient multi-sensor for detection of aniline, Cr2O72- and Fe3+ ions in aqueous solution with low detection limit of 60.11, 0.33 and 12.69 mu M, respectively. This study displays the advantages of combining luminescent lanthanide ions with robust UiO-type MOFs in tuning the fluorescence and sensing performance.
publisher	ELSEVIER SCIENCE SA
issn	0020-1693
isbn	1873-3255
year published	2021
volume	518
digital object identifier (doi)	10.1016/j.ica.2020.120229
web of science category	7
subject category	Chemistry, Inorganic & Nuclear
unique article identifier	WOS:000642460300014