کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1511181 1511179 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of Hydroxyapatite from Oyster Shell via Precipitation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis of Hydroxyapatite from Oyster Shell via Precipitation
چکیده انگلیسی

In this work, oyster shell which predominantly composed of calcium carbonate, was used as a staring material for synthesizing hydroxyapatite powder. By calcinating the oyster shell powder at 1200 °C for 2 h, the pure calcium oxide characterized by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR), was obtained. The XRD pattern also agreed with the standard JCPDS file No.001-1160. The obtained calcium oxide powder was reacted with nitric acid to form the calcium nitrate which was further reacted with di-ammonium hydrogen phosphate at various pH values from 8 to 10 at room temperature and calcined at 900 °C for 2 h. From XRD results, the HA powder was obtained at pH 10 as confirmed by the standard JCPDS file No. 076-0694. In addition, The crystallize size of HA was found to be 89.5 nm from XRD result.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 56, 2014, Pages 112-117