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Rapid formation of hydroxyapatite nanostrips via microwave irradiation

Arami, H ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jallcom.2008.01.116
  3. Publisher: 2009
  4. Abstract:
  5. Hydroxyapatite (HAp) nanostrips were rapidly obtained during a mild microwave heating method. Applying microwave irradiation to Ca(NO3)2·4H2O/CTAB/Na2HPO4 precursor solution, the HAp precipitation process was occurred directly and without common crystallographic transformations including dissolution and slow recrystallization. The cationic surfactant CTAB was used as a soft template to modify nucleation and growth process. TEM investigations showed that the fabricated nanostrips had a width and length of about 10 and 55 nm, respectively. The X-ray diffraction pattern revealed that the fabricated well-crystallized and high purity hydroxyapatite nanostrips had a pattern similar to the bone mineral. The FTIR spectrum of the synthesized HAp nanostrips confirmed the crystallization degree observed in X-ray diffraction pattern. Moreover, the effect of CTAB on formation mechanism of the fabricated nanostrips was investigated. © 2008 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Ceramics ; Chemical synthesis ; Nanofabrication ; Nanostructured materials ; Apatite ; Calcium ; Cationic surfactants ; Ceramic materials ; Diffraction ; Diffraction gratings ; Diffraction patterns ; Dissolution ; Dyes ; Electron holography ; Fabrication ; Fourier transform infrared spectroscopy ; Holographic interferometry ; Hydroxyapatite ; Interferometry ; Irradiation ; Microwave irradiation ; Microwaves ; Nanostructured materials ; Precipitation (chemical) ; Silica ; Silicate minerals ; Surface active agents ; X ray analysis ; X ray diffraction ; Bone minerals ; Ceramics ; Chemical synthesis ; Crystallographic transformations ; Formation mechanisms ; FTIR spectrums ; High purities ; Nanofabrication ; Nanostrips ; Nucleation and growths ; Precipitation processes ; Precursor solutions ; Rapid formations ; Recrystallization ; Soft templates ; Synthesis (chemical)
  8. Source: Journal of Alloys and Compounds ; Volume 469, Issue 1-2 , 2009 , Pages 391-394 ; 09258388 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0925838808001886