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Experimental design approach in the synthesis of hydroxyapatite by neutralization method

机译:中和法合成羟基磷灰石的实验设计方法

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Physicochemical properties of hydroxyapatite(HAP)synthesized by neutralization method are heavily dependent on the process variables.A Plackett-Burman two-level experimental design was therefore,chosen to screen a large number of variables and to determine their effect on HAP characteristics.The sorption of cadmium ions on HAP was studied as well.Of six selected variables(temperature,mixing speed,reactant concentration,addition rate,presence of inert atmosphere and aging time),temperature has shown the strongest influence on HAP structural and sorption properties.Smaller crystallites,lower crystallinity and higher specific surface area lead to higher sorption of cadmium ions.Room temperature and no aging are preferable conditions for the synthesis of HAP with the highest sorption efficiency.
机译:通过中和法合成的羟基磷灰石(HAP)的理化性质在很大程度上取决于工艺变量。因此,我们选择Plackett-Burman两级实验设计来筛选大量变量并确定其对HAP特性的影响。还研究了镉离子对HAP的影响。在六个选择的变量(温度,混合速度,反应物浓度,添加速率,惰性气氛的存在和老化时间)中,温度对HAP的结构和吸附性能影响最大。较低的结晶度和较高的比表面积会导致对镉离子的更高吸附。室温和无老化是合成具有最高吸附效率的HAP的优选条件。

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