采用微波辐射技术制备了交联壳聚糖/活性炭复合膜(CCTS),通过红外光谱和扫描电镜对产物结构进行了表征,研究了该吸附剂的主要性能、吸附机理和对铜离子的吸附条件.结果表明,CCTS复合膜表面粗糙,比表面积较大.壳聚糖的氨基参与了交联反应,CCTS对铜离子的吸附是CCTS的-NH2和-OH与Cu2+发生了配位反应,其吸附符合Langmuir等温方程,属于单分子层吸附.CCTS对铜离子的吸附条件是25℃,pH值为5.5,在50mL浓度为200mg/L Cu2+溶液中,投加0.05g吸附剂,吸附6h,吸附量为117.4mg/g.与水浴法制备的吸附剂相比,该吸附剂的吸附量大大提高,且操作方法简单,工艺条件易于控制.
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