偕胺肟基自组装膜螯合电极的研制  

Preparation of Self-assembly Film Modified Electrode Containing Amidoxime-group

作　　者：卢丹[1] 辛浩波[1] 吴航[1] 董辉阳[1] 杨锋[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2010年第1期22-25,共4页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：青岛市科技攻关项目(03-2-jz-21)

摘　　要：为实现海水提铀,制备了带偕胺肟基的螯合电极。以铝片作为基体材料,分别组装上KH-550和丙烯腈丙烯酸共聚物P(AN-co-AA),形成共聚物薄膜。KH-550增强了薄膜的结合力,解决了极少数聚合物膜从基体上脱落的问题。然后再对其进行偕胺肟化,形成含偕胺肟基(海水提铀的最佳基团)的螯合电极,并用FT-IR和SEM对电极进行了表征。结果表明,当反应温度为70℃,反应时间3 h,盐酸羟胺浓度0.3 mmol.L-1时,反应转化率达到58.3%。Chelating electrode with amidoxime-groups was prepared for the purpose of absorbing uranium from seawater. KH-550 and P（AN-co-AA） were coated on the aluminum substrate by self-assembly in turn, and P（AN-co-AA） coating formed. The coating was adsorbed steadily on the aluminum, settling the problem of coating shelling. Followingly, the coating was reacted with hydroxylamine hydrochloride directly to make chelating electrode which contained amidoxime-groups（the best group used to absorb uranium from seawater）. The electrode was characterized by FT-IR and SEM. The optimal conditions of preparing chelating electrodes were, reaction temperature as 70 ℃, reaction time as 3 h, concentration of hydroxylamine hydrochloride as 0. 3 mmol·L^-1 , and the conversion rate reached 58.3% in maximum.

关 键 词：偕胺肟基 螯合 化学修饰电极 丙烯腈丙烯酸共聚物 

分 类 号：TQ425[化学工程]