title: Morphology control of hydroxyapatite microcrystals: Synergistic effects of citrate and CTAB.
abstract: Using hydrothermal treatment and with the synergistic regulating effects of citrate and CTAB, various 3D hierarchical superstructure of hydroxyapatite (HAp) microcrystals were synthesized by simply adjusting the Ct/CTAB ratio and calcium-citrate complex (CC) morphology. The resulting superstructure was characterized using X-ray diffraction (XRD), Fourier Transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FESEM) etc. With the shape transformation of CC from sphere-like colloid, nano-needle to lamellar-like particles, the final products were hollow spheres, bunched-like microrods and nanorod clusters, respectively. A possible mechanism for the formation of HAp hierarchical microstructure was proposed.
authors.affiliation: School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China. Electronic address: yanghui_2521@163.com.
authors.forename: Hui
authors.initials: H
authors.lastname: Yang
authors.affiliation: School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China. Electronic address: imwangyj@163.com.
authors.forename: Yingjun
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry*; D019343:Citric Acid / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D002593:Cetrimonium Compounds; D019343:Citric Acid; D017886:Durapatite; D000077286:Cetrimonium
keywords: CTAB; Citrate; Hierarchical structure; Hydroxyapatite; Microcrystals