resumo
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.
palavras-chave
ELECTRONIC-ENERGY LEVELS; MIXED-LIGAND STRATEGY; FLUORESCENT-PROBE; LN-MOFS; AQUO IONS; LUMINESCENCE; ADSORPTION; FE3+; PHOTOLUMINESCENCE; EFFICIENT
categoria
Chemistry, Inorganic & Nuclear
autores
Guo, HD; Wang, FY; Ma, RD; Zhang, M; Fu, LS; Zhou, T; Liu, S; Guo, XM
nossos autores
Lianshe Fu
Investigador AuxiliarProjectos
Nano-argilas para remoção/captura de fosfatos (P) e sua reutilização como fertilizante (NATURAL)
agradecimentos
This work was supported by the National Natural Science Foundation of China (No. 21601019) , Natural Science Foundation of Jilin Province (No. 20160414031GH) and Natural Science Foundation of Changchun Normal University (cscxy2017010, cscxy2018011) . This work was developed within the scope of the project CICECOAveiro Institute of Materials, FCT Ref. UID/CTM/50011/2019, financed by national funds through the FCT/MCTES.