纤维素基磁性聚偕胺肟树脂的研究──Ⅰ.树脂吸附二价重金属离子

Studies on cellulose-based magnetic polyamidoxime adsorbents──Ⅰ. BMAO for divalent heavy-metallic cations uptake

碱式纤维素基磁性聚偕胺肟树脂（BMAO）吸附Co2+、Ni2+、Zn2+、Cd2+、和Cu2+、Hg2+、Pb2+二价重金属离子的起始速度和平衡吸附容量有很大的差别，认为是与离子结构及配位活性有关。吸附速度同受粒内扩散过程所控制。Cu2+、Hg2+和Pg2+在BMAO上吸附符合Freundlich等式和Langmuir等温吸附方程。吸附结果可能是生成1：1配合物。

The initial adsorption rate and the saturation capacity of Co2+, Ni7+,Zn2+,Cd2+ ions adsorbed by alkaline edltilere - based Inagnehc polyamidoxime adsorbent (BMAO)dther from those of Cu2+, Hgl+ and Pb2+ ions. It was considered that the features are represented by ionic structUre and coordinative arhvity. Adsorption rate are all conbolled by intrampicledtheion step. Adsorption of Cu2+,Hg2+ and Pb+ ions by BMAO accoch with Freundlichequation and Langrnuir adsorption isotherm. Proboaby, there ions combnes with amidoximegroups to form the l: l complexes.