Lanthanum Oxide Doped Calcium Silicates Particles: Preparation and Characterization

Abstract

Bioactive calcium silicate (CS) and lanthanum oxide (La2O3) doped bioactive calcium silicate (La-CS) materials were successfully prepared in this study. CaO, SiO2, and La2O3 used as precursors materials followed by the solid-state reaction at 1050°C for 2h. The retained particles were crushed and characterized using various methods such as XRD, FTIR, and SEM. Based on the XRD analysis outcomes, two phases of calcium silicate (CaSiO3 and Ca2SiO4) were obtained, and the quantity of CaSiO3 phase increased gradually with increasing La2O3 amount. Based on the FTIR analysis outcomes, the sharpness and area of SiO4 group shrinkage with the addition of La2O3. Based on the SEM analysis outcomes, calcium silicate particles appeared as spheroids like particles and transformed to elongated spheroidal particles with the addition of 20 wt.% of La2O3. Furthermore, incorporating 20 wt.% of La2O3 reduced the size of calcium silicate particle up to 60% of the pure samples.