characterization of rod-like high-purity fluorapatite nanopowders obtained by sol-gel method

high purity fluorapatite (fa) with rod-like and spherical-like morphology was synthesized via sol-gel method. chemical characterization of fa powders was done by xrd and ftir analyses. crystallite samples were calculated using scherer method. morphology of fa powders was investigated with tem and sem images. the results revealed that increasing the time of hydrolysis of phosphate sols significantly decreased the gelation time of fa sols. also, mixing temperature of p and ca sols affects the gelation time of samples and increasing ph decreases the gelation time of fa sols. morphological and chemical characterization of samples showed that the fa powders have high purity and rod-like and spherical-like morphology.