Architecture of micron-scale hollow spheres composed of silica nanoparticles and approach to luminescent spheres

Yi Yu Liu, Shao Liang Cheng, Hui Chen

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Micron-scale hollow spheres were successfully constructed with silica nanoparticles by templating of polymer spheres. Subsequently, the use of 3-aminopropyltriethoxysilane (APTES) introduces carbon and oxygen defects in the silica nanoparticles resulting from calcination of the aminopropyl group. In this approach, the template of micron-scale polymer spheres was prepared from dispersion polymerization. Subsequent Stöber process results in the formation of a silica layer attached to the polymer sphere surfaces. After calcination, the obtained micron-scale hollow silica spheres were then studied on the relationship between the particle diameter and the surface morphology. The luminescence of hollow spheres was prepared through using APTES in Stöber process, and which of related the appearance of luminescence to the APTES concentration and calcination temperature. The results of this study can provide useful information for the structure of micron-scale hollow spheres and their application to luminescent materials.

Original languageEnglish
Pages (from-to)1777-1784
Number of pages8
JournalColloid and Polymer Science
Volume290
Issue number17
DOIs
StatePublished - Nov 2012

Keywords

  • 3-Aminopropyltriethoxysilane
  • Dispersion polymerization
  • Hollow spheres
  • Luminescent spheres
  • Micron-scale polymer spheres

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