Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
612558 | Journal of Colloid and Interface Science | 2006 | 8 Pages |
Abstract
Titania-coated polymeric nanoparticles were synthesized based on the cationic colloidal particles which were prepared by surfactant-free emulsion copolymerization of styrene and butylacrylate in the presence of a cationic monomer, methacryloxyethyltrimethyl ammonium chloride (MOTAC) using azobis(isobutylamidine hydrochloride) (AIBA) as an initiator. These cationic particles were stabilized by poly(vinylpyrrolidone) (PVP). Then, these particles were dispersed in ethanol and mixed with titanium(IV) butoxide. Negatively charged titania precursors were rapidly hydrolyzed onto the cationic surfaces of colloidal particles. Subsequently, the samples were heated to 450â°C to form anatase TiO2 and to remove the colloidal template, which resulted in hollow nanospheres.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Tae Hee Kim, Kwang Hee Lee, Yong Ku Kwon,