壳聚糖插层膨润土的制备及其对Zn~(2+)的吸附

Study on the Intercalation Organobentonite and its Adsorption

摘要: 以钠基膨润土为原料制备插层有机复合膨润土吸附剂.讨论表面活性剂和壳聚糖不同比例和不同的加入方式对吸附剂吸附性能的影响,探讨插层有机复合膨润土的再生方法.结果表明:表面活性剂和壳聚糖配比为2∶1时,分步合成的吸附剂吸附性能良好,当废水溶液pH为8时,吸附率达96.3%.再生后的吸附剂吸附率可达95.6%.

Abstract: The intercalation complex organic bentonite has been prepared by sodium bentonite.The dependence of the absorption performance on the ratio of surfactant to shell glycan and the different adding means was ivestigated.The regeneration of the intercalation complex organic bentonite was discussed.The result indecates that higher absorption efficiency was obtained under the condition of the ratio 2∶1 and two step adding.The absorption efficiency reached 96.3% at the pH 8 of the waste water,while that of the reg...