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以丙烯酸β-环糊精酯(β-CD-AA)、烯丙基-联苯基醚(ABE)和丙烯酸(AA)为单体,以N,N-亚甲基双丙烯酰胺(MBA)为交联剂,采用微波辅助法制备了β-环糊精交联聚合物(AA/β-CD-AA/ABE),FTIR表征了其结构。以原子吸收光谱法(AAS)为检测手段,研究了Pb2+和Zn2+吸附时间、体系pH及温度等吸附条件对聚合物吸附性能的影响。实验结果表明,Pb2+的最佳吸附条件为:在35℃、静态吸附时间约2h左右、体系pH 2～3时,最大吸附量Q达到29.5mg.g-1;Zn2+的最佳吸附条件为:在30℃、静态吸附时间约3h左右、体系pH 3～4时,最大吸附量Q达到43.7mg.g-1;聚合物对Pb2+和Zn2+的吸附基本符合Freundlich吸附等温方程。
Using β-CD-AA, allyl-biphenyl ether (ABE) and acrylic acid (AA) as monomers and N, N-methylenebisacrylamide (MBA) As crosslinker, the β-cyclodextrin cross-linked polymer (AA / β-CD-AA / ABE) was prepared by microwave assisted method and its structure was characterized by FTIR. The effects of adsorption time of Pb2 + and Zn2 +, pH and temperature on the adsorption properties of polymer were studied by atomic absorption spectrometry (AAS). The experimental results showed that the optimal adsorption conditions for Pb2 + were as follows: the static adsorption time was about 2h at 35 ℃, the maximum adsorption capacity was 29.5mg.g-1 when pH was 2 ~ 3; the optimum adsorption conditions for Zn2 + At 30 ℃, the static adsorption time was about 3h, the maximum adsorption capacity was 43.7mg.g-1 when the pH was 3 ~ 4. The adsorption of Pb2 + and Zn2 + by the polymer was basically consistent with the Freundlich adsorption isotherm equation.