Lanthanide functionalized hybrid materials of polyoxometallate based metal–organic frameworks for multi-color luminescence
| Autor: | Bing Yan, G. D. Jia |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Lanthanide
Energy transfer Inorganic chemistry Ionic bonding 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences Ion chemistry.chemical_compound chemistry Materials Chemistry Metal-organic framework Phosphotungstic acid 0210 nano-technology Luminescence Hybrid material |
| Zdroj: | New J. Chem.. 41:12795-12800 |
| ISSN: | 1369-9261 1144-0546 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|