A facile and novel approach for preparing monodispersed hollow aluminosilica microspheres with thin shell structures

摘要: Monodispersed hollow aluminosilica microspheres (HAMs) with thin shell structures have been successfully synthesized via a novel method. The facile strategy is simple, efficient, and highly controllable. A NaAlO2 aqueous solution firstly employed as an alkaline to directly etch silica hard templates without additional surfactants form monodispersed microspheres. On the basis of proposed formation mechanism etching followed by co-assembly, size HAMs fully dependent on sphere templates.