摘要
A self-templated approach has been developed for the synthesis of TiO 2 microcapsules with tunable size and wall thickness by heating sol-gel derived TiO 2 microspheres with poly(acrylic acid) (PAA) in a diethylene glycol (DEG) solution. PAA plays a crucial role in the formation of microcapsules by crosslinking the surface TiO 2 nanoparticles and preventing them from dissolution by DEG. Hollow microcapsules form when DEG molecules penetrate the outer layer and remove the core materials by forming soluble titanium glycolate.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 1832-1836 |
| 页数 | 5 |
| 期刊 | Nano Letters |
| 卷 | 7 |
| 期 | 6 |
| DOI | |
| 出版状态 | 已出版 - 6月 2007 |
| 已对外发布 | 是 |
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