Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 13, Pages 4302-4307Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201814492
Keywords
gold nanoparticles; nanocomposites; nanomaterials; RAFT polymerization; ZnO
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Funding
- Overseas Study Program of Guangzhou Elite Project
- EPSRC [EP/J018589/1, EP/K006290/1, EP/P005241/1]
- ERC [PISA 320372]
- EPSRC [EP/K006290/1, EP/P005241/1, EP/J018589/1, EP/P02470X/1, EP/S019367/1, EP/R003009/1] Funding Source: UKRI
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In principle, incorporating nanoparticles into growing crystals offers an attractive and highly convenient route for the production of a wide range of novel nanocomposites. Herein we describe an efficient aqueous route that enables the spatially controlled occlusion of gold nanoparticles (AuNPs) within ZnO crystals at up to 20% by mass. Depending on the precise synthesis protocol, these AuNPs can be (i)solely located within a central region, (ii)uniformly distributed throughout the ZnO host crystal or (iii)confined to a surface layer. Remarkably, such efficient occlusion is mediated by a non-ionic water-soluble polymer, poly(glycerol monomethacrylate)(70) (G(70)), which is chemically grafted to the AuNPs; pendent cis-diol side groups on this steric stabilizer bind Zn2+ cations, which promotes nanoparticle interaction with the growing ZnO crystals. Finally, uniform occlusion of G(70)-AuNPs within this inorganic host leads to faster UV-induced photodegradation of a model dye.
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