| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 613039 | Journal of Colloid and Interface Science | 2007 | 5 Pages |
Abstract
A simple method based on the Stöber reaction was developed to prepare silver-nanocrystal-doped silica composite particles. The silane coupling agent N-[3-(trimethoxysilyl)dropyl]ethylene diamine (TSD) incorporated Ag+ into a siloxane framework and a further chemical reducer reduced Ag+ to silver nanoparticles. TEM images showed that, in the presence of TSD, silver nanocrystals (fcc) of 2–8 nm were homogeneously doped in the silica particles, which showed a typical surface plasmon resonance (SPR) peak. The as-prepared Ag/SiO2 composite particles can be self-assembled into long-range ordered lattices (or photonic crystals) over large areas.
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Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Dong Chen, Linlin Li, Jianshu Liu, Shuo Qi, Fangqiong Tang, Xiangling Ren, Wei Wu, Jun Ren, Lin Zhang,