Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 52, Pages 15789-15793Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201509071
Keywords
methyl viologen; nanoparticles; self-assembly; stimuli-responsive materials; titanium
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Funding
- NSFC/China [21421004, 21272073, 21190033]
- National Basic Research 973 Program
- Fok Ying Tong Education Foundation [121069]
- Fundamental Research Funds for the Central Universities
- Innovation Program of Shanghai Municipal Education Commission
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The realization of controllable multicomponent self-assembly through reversible supramolecular interactions is a challenging goal, and is an important strategy for the fabrication of switchable nanomaterials. Herein we show that the self-assembly of TiO2 nanoparticles (NP) functionalized with methyl viologen can be controlled both by light irradiation and chemical reduction through cucurbit[8]uril-enhanced radical cation dimerization interactions. Moreover, the controlled assembly and disassembly of this system are accompanied by switchable photocatalytic activity of the TiO2 NPs, which shows potential application as a novel smart and recyclable photocatalyst.
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