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

作者：Jia, G. D.; Yan, B.^*

来源：New Journal of Chemistry, 2017, 41(21): 12795-12800.

DOI：10.1039/c7nj02824e

• ELECTRONIC-ENERGY LEVELS
• AQUO IONS
• INORGANIC HYBRIDS
• COMPLEXES
• ENCAPSULATION
• STABILITY
• CHEMISTRY
• MOFS

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)[Cu-46(BTC)(24)(OH)(12)](PW12O40)(3)center dot xH(2)O, CTA = hexadecyltrimethylammonium cation) through ionic exchange and substitution. Energy transfer from phosphotungstic acid ions (PW12O403-) and 1,3,5-benzenetricarboxylate (H3BTC) to lanthanide ions (Ln(3+), Ln = Eu, Tb, Sm, Dy) results in the characteristic emission of Ln(3+) in the corresponding hybrids (Ln(3+) subset of COK-15). Among Eu3+ subset of 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.

• 出版日期2017-11-7
• 单位同济大学