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。
Crosslinked copolymer(AA/β-CD-AA/ABE)containingβ-cyclodextrin was synthesized by microwave heating with acylation,allyl-biphenyl-ether(ABE),crylic acid(AA)as monomer and N,N-methylenebisacrylamide(MBA)as cross-linking agent,and characterized by means of FTIR.The adsorption of Pb2+and Zn2+on the synthesized copolymer and the factors(adsorption time,pH and temperature)which affect the adsorption capacity were investigated by atomic absorption spectrometry(AAS)as the detection means.The results show that the optimum experimental conditions of adsorption:35℃,2hand pH 2 ~3,adsorbance Q for Pb2+reached maximum 29.5mg.g-1;30℃,3hand pH 3~4,adsorbance Q for Zn2+reached maximum 43.7mg.g-1;the adsorption equilibriums for Pb2+and Zn2+fit the Freundlich on the whole.