Studies On Preparation and Adsorption Behavior of Cd2+ Ions-Imprinted Polymer
Using Palygorskite as matrix,chitosan(CTS) as functional monomer,and introducing theion-imprinting technique to the synthesis process,a new Cd2+-IIP was prepared for selective separation of Cd2+ from aqueous solution was prepared.The static method was adopted to study the adsorption capacity of Cd2+-IIP for Cd2+,and the effects of contact time,pH value,adsorbent dosage and temperature of the initial solution on the adsorption characters of Cd2+ were investigated.Experiment results indicated that the adsorption was rapid during the first 20 minuts and equilibrium were attained within 70 minutes.The Cd2+-IIP had higher adsorption capacity to Cd2+ than other different ions.There were less difference in the adsorption capacity between different dosages of Cd2+-IIP,but the adsorption capacity of Cd2+ adsorbed onto Cd2+-IIP decreased with increasing the dosages.Under the optimum conditions,the ions-imprinted polymer offered a fast adsorption of Cd2+ and the maximum capacity was 18.20 mg/g.
Palygorskite Chitosan ion-imprinting technique Cd2+ ions
Yingying Shi Qianghua Zhang Liangdong Feng Qingping Xiong
Department of Chemical Engineering, Huaiyin Institute of Technology, Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaian, Jiangsu, 223003, China
国际会议
太原
英文
419-422
2012-06-23（万方平台首次上网日期，不代表论文的发表时间）