Synthesis and structural characterization of macroporous bioactive glass

Abstract

Porous sol-gel glass of CaO-SiO₂-P₂O₅ system with macropores larger than 100 μm was prepared by adding stearic acid as pore former when the sintering was carried out at 700 °C for 3 h. The sol-gel porous glass shows an amorphous structure. The diameter of the pore created by pore former varies from 100 to 300 μm, and macroporous glass has a narrow and small pore size distribution in mesoporous scale. The porosity and pore size of macroporous bioactive glass can be controlled.

Keywords

macroporous glass / sol-gel method / synthesis / structural characterization