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Lanthanide functionalized hybrid materials of polyoxometallate based metal–organic frameworks for multi-color luminescence

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Abstract

This work mainly studies lanthanide functionalized hybrids of polyoxometallate (POM) based metal–organic frameworks (MOFs). Firstly, four kinds of lanthanide ions are introduced into porous material COK-15 ((CTA)1[Cu46(BTC)24(OH)12](PW12O40)3·xH2O, CTA = hexadecyltrimethylammonium cation) through ionic exchange and substitution. Energy transfer from phosphotungstic acid ions (PW12O403−) and 1,3,5-benzenetricarboxylate (H3BTC) to lanthanide ions (Ln3+, Ln = Eu, Tb, Sm, Dy) results in the characteristic emission of Ln3+ in the corresponding hybrids (Ln3+⊂COK-15). Among Eu3+⊂COK-15 hybrid system displays multi-color light from blue to red with different amounts of Eu3+ and a white luminescence (x = 0.3845, y = 0.303) is obtained through tuning an appropriate amount of Eu3+ and a suitable excitation wavelength.

Graphical abstract: Lanthanide functionalized hybrid materials of polyoxometallate based metal–organic frameworks for multi-color luminescence

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Publication details

The article was received on 01 Aug 2017, accepted on 25 Sep 2017 and first published on 26 Sep 2017


Article type: Paper
DOI: 10.1039/C7NJ02824E
Citation: New J. Chem., 2017, Advance Article
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    Lanthanide functionalized hybrid materials of polyoxometallate based metal–organic frameworks for multi-color luminescence

    G. D. Jia and B. Yan, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ02824E

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