Sorption of 2-naphthol and copper ions by cationic surfactant-adsorbed laponite

被引：15
作者：
Esumi, K [1 ]
Yoshida, K
Torigoe, K
Koide, Y
机构：
[1] Sci Univ Tokyo, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan
[2] Sci Univ Tokyo, Inst Colloid & Interface Sci, Shinjuku Ku, Tokyo 1628601, Japan
[3] Kumamoto Univ, Fac Engn, Dept Appl Chem & Biochem, Kumamoto 8600862, Japan
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1999年 / 160卷 / 03期
关键词：
laponite; adsolubilization; 2-naphthol; copper ion; cationic surfactant;
D O I：
10.1016/S0927-7757(99)00195-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
As one of applications of adsolubilization, a simultaneous sorption of 2-naphthol and copper ions by cationic surfactant-adsorbed laponite was carried out. Both the surfactant-adsorbed laponite using dodecyl trimethylammonium bromide (DTAB) and 1,2-bis(dodecyldimethylammonio) ethane dibromide (2RenQ) retained a high sorption capacity for copper ions, while the 2RenQ-adsorbed laponite completely adsolubilized 2-naphthol in a whole concentration region, but the DTAB-adsorbed laponite one decreased the adsolubilization gradually above the cmc of DTAB. Thus, it was found that laponite having cationic surfactant-adsorbed layer has a great capacity for a simultaneous removal of both toxic nonionic and ionic compounds. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：247 / 250
页数：4
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