羟基磷灰石的制备及除氟性能研究
Study on preparation and fluoride removal performance of hydroxyapatite
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摘要: 采用化学沉淀法，使用不同原料制备羟基磷灰石；研究羟基磷灰石的除氟性能及除氟机理。静态吸附试验结果表明，样品对氟离子的吸附性能良好，吸附平衡时间一般在3 h左右；随着溶液氟离子浓度的增加，平衡吸附容量不断增加，两者都没有极限值，属于弗兰德里希（Freundlich）吸附。Abstract: Hydroxyapatite was prepared with different materials by chemical precipitation method and their adsorption property and mechanism of F- ion were studied. The results of static adsorption experiment showed that hydroxyapatite had well adsorption capacity of F- ion. The equilibrium time of adsorption was about 3 hours. The equilibrium adsorption capacity was increased with the increase of concentration of F- ion and both of them had no limit. The type of adsorption isotherm is Freundlich adsorption.
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