壳聚糖包覆高岭土对刚果红吸附性能研究

Applied Chemical Industry(2020)

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Abstract
由高岭土、壳聚糖制备了壳聚糖涂层高岭土材料(CAK),探讨了高岭土与壳聚糖质量比、接触时间、pH、染液初始浓度对刚果红吸附性能的影响.结果表明,CAK在质量比为2:1、pH=3、接触时间60 min、染液初始浓度为400 mg/L吸附条件下,对刚果红有优异的吸附性能,刚果红去除率99%.准二阶动力学可以更好地描述CAK对刚果红的吸附动力学过程,吸附平衡数据满足Langmuir等温吸附方程,理论最大吸附容量为400.71 mg/L.
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