کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
144447 438934 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of ultralong nanofibrillar and hydroxyapatite powder
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis and characterization of ultralong nanofibrillar and hydroxyapatite powder
چکیده انگلیسی


• Ultralong nanofibrillar hydroxyapatite was synthesized.
• Oleic acid was used as structure-directing agents.
• The structure and morphology were characterized.
• The growth and self-assembly of nanocrystals were investigated.

The hydroxyapatite (HAp, Ca5(PO4)3OH) nanofibers with a diameter about 2 nm and a length above 400 nm were synthesized by using oleic acid as capping and structure-directing agents under 140 °C hydrothermal condition. The structure and morphology of nanofibrillar HAp were characterized by means of X-ray diffraction, transmission electron microscopy, Fourier-transform infrared spectroscopy and thermo-gravimetric and differential thermal analysis, respectively. The growth dynamics and evolution of nanocrystals were investigated by controlled experiment on the synthesis conditions, including the molar ratio of reactants, temperature and time of hydrothermal treatment. The proposed mechanism of the nanofibers formation, growth and self-assembly mediated by organic agents might facilitate the design and synthesis of nanostructural materials with desirable sizes and shapes for consequent use in the related fields.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advanced Powder Technology - Volume 26, Issue 2, March 2015, Pages 428–433
نویسندگان
, , , , ,