Synthesis of hollow TiO2 microspheres

摘要

Hollow micro/nano structures are of great interest in many current and emerging areas of technology. The large fraction of void space in hollow structures has been successfully used to encapsulate and control release of sensitive materials such as drugs[1], and DNA[2]. Especially, hollow and porous TiO2 particles are known to have good photovoltaic, and photocatalytic properties. Synthetic strategies for hollow structure particles are broadly categorized into hard templating method[3], soft templating method[4], sacrificial templating method[5], and template free method[6].