作　　者： ; ; ; ;

机构地区： 广东药学院药科学院

出　　处： 《广东化工》 2006年第11期19-21,共3页

摘　　要： 以壳聚糖(CTS)包合氧化铝经戊二醛交联反应制备了复合微球作为氟离子吸附剂。主要研究了复合微球对F-的吸附模型和吸附动力学,并考察了再生次数对吸附容量的影响。结果表明复合微球对F-有很强的吸附作用和较快的吸附速率;吸附行为符合Freundlich模型,为吸热过程,吸附表观活化能△E=53.71kJ/mol;复合微球经碱液洗脱再生后能够多次使用。 In this paper crosslinked chitosan composite microspheres were synthesized by chitosan, Al2O3 and glutaraldehyde, and then were used to purify the water with F. The isothermal adsorption kinetics and adsorption model of composite microphere for F^- had been investigated. At the same time, relationship of adsorption capacity and desorption number was studied. The results showed that the composite microsphere had strong absorption ability for F^- and fast absorption rate. The results were satisfied with the Freundlich adsorption model, the adsorption was an exothermic process, and the apparent adsorption activation energy was 53.71 kJ/mol. Composite microspheres could be regenerated by pouring to wash with dilute alkali liquid.

关 键 词： 壳聚糖 氧化铝 复合微球 吸附 氟离子

领　　域： [理学] [理学]