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:: Volume 8, Issue 3 (12-2019) ::
2019, 8(3): 9-17 Back to browse issues page
Effect of chelating agent on Hydroxyapatite morphology under hydrothermal process
Abstract:   (392 Views)
Citrate was used as chelating or morphology regulating agent in this study. In the presence of regulating agent a two-dimensional monetite phase evolved into  three-dimentional hydroxyapatite microspheres with an average diameter of 4 µm. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) studies revealed the importance of Ca/citrate ratio in regulating the particle morphology. The results indicate that the surface morphology of microspheres can be engineered from nanosheets to nanorods by regulating agent’s concentration.  X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy confirmed crystallinity and purity in the synthesized powders. Brunauer-Emmett-Teller (BET) revealed an increase in the specific surface area with adding citrate. Possible mechanisms are proposed to account for the formation of different morphologies based upon thermodynamic theories.
Keywords: Hydroxyapatite, Citrate, Hydrothermal, Morphology.
Full-Text [PDF 787 kb]   (145 Downloads)    
Type of Study: Research | Subject: Special
Received: 2020/01/19 | Accepted: 2020/01/19 | Published: 2020/01/19
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Effect of chelating agent on Hydroxyapatite morphology under hydrothermal process. Iranian Journal of Ceramic Science & Engineering. 2019; 8 (3) :9-17
URL: http://ijcse.ir/article-1-716-en.html

Volume 8, Issue 3 (12-2019) Back to browse issues page
نشریه علم و مهندسی سرامیک Iranian Journal of Ceramic Science & Engineering
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