Synthesis and characterization of CaTiO3 particles with controlled shape and size

Abstract

CaTiO₃ particles with different morphologies and sizes are synthesized by mixing calcium nitrate and tetrabutyl titanate (Ti(OC₄H₉)₄, TNB) into PEG [poly(ethylene glycol)] with varying water content. Electron microscopy observations reveal that the experimental conditions, such as the temperature of the suspension, NaOH concentration, reaction time and water content, can influence the shape and size of the CaTiO₃ particles. The photocatalytic results show that the CaTiO₃ rectangular particles have the highest photocatalytic activity.