SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (2): 238-247.DOI: 10.1016/j.cjche.2016.07.013

• Materials and Product Engineering • Previous Articles    

Structural insights of mechanically induced aluminum-doped hydroxyapatite nanoparticles by Rietveld refinement

Abbas Fahami1, Bahman Nasiri-Tabrizi2, Gary W. Beall3,4, Wan Jefrey Basirun5   

  1. 1 Materials Science, Engineering and Commercialization Program, Texas State University, San Marcos 78666, TX, USA;
    2 Advanced Materials Research Center, Materials Engineering Department, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran;
    3 Department of Chemistry and Biochemistry, Texas State University, San Marcos 78666, TX, USA;
    4 Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
    5 Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
  • Received:2016-03-07 Revised:2016-07-18 Online:2017-03-14 Published:2017-02-28
  • Supported by:
    Supported by the National Science Foundation (PREM center for interfaces, DMR-1205670), and the Robert A.Welch Foundation (Al-0045).

Structural insights of mechanically induced aluminum-doped hydroxyapatite nanoparticles by Rietveld refinement

Abbas Fahami1, Bahman Nasiri-Tabrizi2, Gary W. Beall3,4, Wan Jefrey Basirun5   

  1. 1 Materials Science, Engineering and Commercialization Program, Texas State University, San Marcos 78666, TX, USA;
    2 Advanced Materials Research Center, Materials Engineering Department, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran;
    3 Department of Chemistry and Biochemistry, Texas State University, San Marcos 78666, TX, USA;
    4 Physics Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
    5 Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
  • 通讯作者: Bahman Nasiri-Tabrizi
  • 基金资助:
    Supported by the National Science Foundation (PREM center for interfaces, DMR-1205670), and the Robert A.Welch Foundation (Al-0045).

Abstract: Aluminum doped hydroxyapatite (HA:Al3+) nanopowders were successfully prepared via a simple and efficient one-potmechanochemical route. The effects of dopant loading on phase compositions and structural features were assessed by Rietveld analysis. The XRD-Rietveld refinement revealed the stabilization of HA in hexagonal structure for all the samples. The sharpness and intensity of the apatite-derived XRD peaks decreased as the dopant content increased to 10% due to the increase in lattice imperfections and mechanically induced amorphization. The incorporation of Al3+ into the HA lattice decreased the unit cell parameters. From the FTIR measurements, the representing bands of apatite were identified in all cases. The mechanosynthesized nanopowders consisted of nanospheroids with an average size of 44±20 nm and therefore are promising for bone tissue regeneration.

Key words: Synthesis, Ion exchange, Mechanochemical, Rietveld refinement

摘要: Aluminum doped hydroxyapatite (HA:Al3+) nanopowders were successfully prepared via a simple and efficient one-potmechanochemical route. The effects of dopant loading on phase compositions and structural features were assessed by Rietveld analysis. The XRD-Rietveld refinement revealed the stabilization of HA in hexagonal structure for all the samples. The sharpness and intensity of the apatite-derived XRD peaks decreased as the dopant content increased to 10% due to the increase in lattice imperfections and mechanically induced amorphization. The incorporation of Al3+ into the HA lattice decreased the unit cell parameters. From the FTIR measurements, the representing bands of apatite were identified in all cases. The mechanosynthesized nanopowders consisted of nanospheroids with an average size of 44±20 nm and therefore are promising for bone tissue regeneration.

关键词: Synthesis, Ion exchange, Mechanochemical, Rietveld refinement