Synthesis of anisotropic TiO2 hollow microspheres using cave particles as templates and application in water treatment

Abstract

Anisotropic polystyrene (PS) particles with single cavity structures were synthesized using a modified dispersion polymerization method with divinylbenzene (DVB) as a crosslinker. Using the PS cave particles as templates, anisotropic titanium dioxide (TiO₂) hollow microspheres were fabricated facilely. Due to possessing excellent photocatalytic activities, the obtained anisotropic TiO₂ hollow spheres have potential applications in detoxification extraction and waste removal with very simple and efficient procedures.