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

Autor: Koji Yoshida, Kanjiro Torigoe, Kunio Esumi, Yoshifumi Koide
Rok vydání: 1999
Předmět:
Zdroj: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 160:247-250
ISSN: 0927-7757
DOI: 10.1016/s0927-7757(99)00195-8
Popis: 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.
Databáze: OpenAIRE