铝阳极氧化多孔膜层的界面电性能研究  

Study of Charged Property on the Interface of Porous Membrane of Anodized Aluminum

作　　者：旷亚非[1] 王玲[1] 胡飞[1] 

机构地区：[1]湖南大学化学化工学院

出　　处：《电化学》1998年第2期164-169,共6页Journal of Electrochemistry

摘　　要：采用电渗方法研究了经硫酸溶液氧化并利用逆向电解方法剥离后的铝阳极氧化多孔膜层的ζ电位与溶液ｐＨ的关系．结果表明：该多孔膜层在１．０×１０－２ｍｏｌ／ＬＫＣｌ溶液中的ｐＨ等电点（ｐＨＩＥＰ）＝９．２０，２．００＜ｐＨ＜９．２０，ζ＞０，多孔膜荷正电；９．２０＜ｐＨ＜１１．００，ζ＜０，多孔膜荷负电．Using electrodialytic method, the relation between the pH value of tested solution and the ζ potential of porous anodized aluminum membrane, which was separated by reverse electrolysis from aluminum substrate, has been investigated. The following results can be obtained in 1.0×10-2 mol/L KCl solution: The pHIEP(isoelectric potential) of the porous membrane is equal to 9.20; In the range of 2.00<pH<9.20, the charge of membrane is positive; In the range of 9.20<pH<11.00,the membrane is taken negative charge.

关 键 词：铝阳极 多孔膜层 Ζ电位 等电点 氧化膜 界面 

分 类 号：O646.54[理学—物理化学] O657.1[理学—化学]