Preparation and application of carbon and hollow TiO₂ microspheres by microwave heating at a low temperature

Abstract A fast, simple, and energy-saving microwave-assisted approach was successfully developed to prepare carbon microspheres. The microspheres with a uniform particle size good dispersity were prepared using glucose as the raw material HCl dehydrating agent at low temperature (90°C) in an open system assistance of microwave heating. characterized by elemental analysis, XRD, SEM, FTIR, TG, Raman. results showed that under condition 18.5% (v/v) heating for 30 min had narrow distribution. core–shell structure core TiO 2 shell (NH 4 ) TiF 6 , H 3 BO method. hollow crystallinity high photocatalytic properties sacrificing