1. Preparation and characterization of silver/TiO2 composite hollow spheres.
- Author
-
Song C, Wang D, Gu G, Lin Y, Yang J, Chen L, Fu X, and Hu Z
- Subjects
- Colloids chemistry, Particle Size, Polymethyl Methacrylate chemistry, Surface Properties, Microspheres, Silver chemistry, Titanium chemistry
- Abstract
Silver-coated poly(methyl acrylic acid) (PSA) core-shell colloid particles were prepared by an in situ chemical reduction method. Crystalline silver/titania composite hollow spheres were obtained by coating the as-prepared PSA/silver particles with an amorphous titania layer and subsequently calcining in Ar atmosphere. SEM and TEM investigation indicated that the size of the as-prepared PSA/silver and PSA/silver/TiO(2) core-shell particles and silver/titania composite hollow particles was fairly uniform and the wall thickness of the hollow spheres was in the range of 40-80 nm. UV-vis absorption spectra were recorded to investigate their optical properties.
- Published
- 2004
- Full Text
- View/download PDF