纤维素基磁性聚偕胺肟树脂的研究──CuCl_2的吸附行为  

Studies on Cellulose based Magnetic Polyamidoxime Adsorbents Copper Chloride Adsorbed by Alkali treated Resin

作　　者：杨超雄[1] 吴锦远[1] 

机构地区：[1]中国科学院广州化学研究所

出　　处：《高等学校化学学报》1998年第3期419-423,共5页Chemical Journal of Chinese Universities

基　　金：中国科学院广州化学研究所纤维素化学开放研究实验室资助

摘　　要：ＣｕＣｌ２可吸附在碱式纤维素基磁性聚偕胺肟树脂（ＢＭＡＯ）上．接触２０ｍｉｎ时Ｆ＝０．６９，ｎ（［Ｃｕ２＋］ａ）／ｎ（［ＡＯ］）＝０．５９，此后吸附速度突然下降．动力学研究和扫描电镜观察表明，吸附后生成了二齿螯合物，随后进行氧化还原反应析出单质铜．ＢＭＡＯ适于在稀溶液中吸附Ｃｕ２＋离子，也适于进行大规模吸附．Cu 2+ ions can be adsorbed by alkaline cellulose based magnetic polyamidoxime adsorbent(BMAO). After contact for 20 min, the adsorption capacity and the binding ratio were found to be 0.69 and 0.59, respectively, and then the adsorption rate decreases suddenly. It is considered that the reaction is going into the next stage. The results of adsorption kinetics and the observation of SEM suggested that CuCl 2 was adsorbed by BMAO to give a bidentate chelate, and the redox reaction took place between them afterwards. The results obtained by the variation of CuCl 2 concentration or liquid solid proportion show that BMAO is suitable for CuCl 2 uptake from dilute solution and adsorption on a large scale.

关 键 词：纤维素基 吸附剂 聚偕胺肟 氯化铜 铜离子 BMAO 

分 类 号：O647.33[理学—物理化学] O614.121[理学—化学]