Polyoxometallates trapped in a zeolitic imidazolate framework leading to high uptake and selectivity of bioactive molecules

We report a strategy to synthesize materials in which POMs are enclosed in the cages of ZIFs. In three new compounds, H sub(3)PW sub(12)O sub(40) is a subset of ZIF-8 (BIT-1), H sub(4)SiW sub(12)O sub(40 ) is a subset of ZIF-8 (BIT-2) and H sub(3)PMo sub(12)O sub(40 ) is a subset of ZIF-8 (BIT-3), d...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2014-01, Vol.2 (7), p.2168-2173
Main Authors: Li, Rui, Ren, Xiaoqian, Zhao, Jingshu, Feng, Xiao, Jiang, Xin, Fan, Xinxin, Lin, Zhengguo, Li, Xingguo, Hu, Changwen, Wang, Bo
Format: Article
Language:English
Subjects:
Acetal resins
Cages
Controlled release
Materials selection
Polyoxometallates
Strategy
Sustainability
Uptakes
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Summary:We report a strategy to synthesize materials in which POMs are enclosed in the cages of ZIFs. In three new compounds, H sub(3)PW sub(12)O sub(40) is a subset of ZIF-8 (BIT-1), H sub(4)SiW sub(12)O sub(40 ) is a subset of ZIF-8 (BIT-2) and H sub(3)PMo sub(12)O sub(40 ) is a subset of ZIF-8 (BIT-3), different POM cages are 'trapped' inside the well-defined cages of ZIF-8 by one-pot mechanochemical synthesis. They show the highest capacity for methylene blue and controlled release of the anti-cancer agent 5-fluorouracil. BITs can be fully recovered and reused without losing their uptake capacity.
ISSN:2050-7488
2050-7496
DOI:10.1039/c3ta14267a