以二醋酸纤维素酯(CA)/聚乙烯基亚胺(PEI)共混制备微孔滤膜,利用PEI对重金属离子的螯合作用吸附水溶液中的Cu2+.实验考察了吸附时间、pH对Cu2+静态吸附性能的影响.膜对Cu2+的等温吸附符合Langmuir型吸附,其饱和吸附量取决于膜中PEI的含量.
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