Effect of Ultrasound Irradiation on the Synthesis of Hydroxyapatite/Titanium Oxide Nanocomposites

Crystals

J.J. Gervacio-Arciniega¹  A.K. Sánchez-Hernández²  M.J. Robles-Águila²  J. Martínez-Juárez²  R. Silva-González³ 

[1] Conacyt-Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y Av. 18 Sur, Col. San Manuel Ciudad Universitaria, Puebla 72570, Mexico;Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edificio 105 C, Boulevard 14 Sur y Av. San Claudio, Col. San Manuel, Puebla 72570, Mexico;Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apartado Postal J-48, Puebla 72570, Mexico;

关键词: sol-gel process;    nanocomposite;    hydroxyapatite;    TiO₂;    ultrasound;   

DOI  :  10.3390/cryst10110959

来源: DOAJ

【 摘 要 】

Bioceramic materials, such as hydroxyapatite, Ca₁₀(PO₄)₆(OH)₂, (HAp), can be chemically bound to bone tissue; since they are bioactive and biocompatible. HAp, titanium oxide (TiO₂), and hydroxyapatite/titanium oxide (HAp/TiO₂) nanocomposite nanoparticles were obtained by ultrasound irradiation assisted by sol-gel and co-precipitation methods at different time intervals, using Ca(NO₃)₂•4H₂O, (NH₄)₂HPO₄, and TiOSO₄•xH₂O as calcium, phosphorus, and titanium sources, respectively. HAp, TiO₂, and HAp/TiO₂ nanocomposite powders were characterized by X-ray Diffraction (XRD) and Raman Spectroscopy. The percentages of anatase phase for TiO₂ and of monoclinic and hexagonal phases for HAp were quantified by Rietveld refinement. Furthermore, sample crystallinity in each material was enhanced by increasing the ultrasound irradiation time. The nanoparticle shape was semi-spherical, agglomerated, and between 17 and 20 nm in size. The agglomeration of particles in the samples was corroborated with a Field Emission Scanning Electron Microscope (FESEM).

【 授权许可】

Unknown