Copper(II) adsorption on Ca-rectorite, and effect of static magnetic field on the adsorption

被引：47

作者：

Zhang, GK ^{[1
]}

Xia, Y ^{[1
]}

Ying, L ^{[1
]}

Jia, YY ^{[1
]}

Yu, GW ^{[1
]}

Ouyang, SX ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2004年 / 278卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Ca-rectorite; copper; magnetic field; zeta potential; adsorption;

D O I：

10.1016/j.jcis.2004.05.046

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：

Rectorite is a kind of rare clay mineral. In this work, the sorption of Cu(II) on Ca-rectorite and the effects of static magnetic fields on the sorption have been studied. The results from this study indicated that (1) apparent equilibrium for the sorption of copper onto Ca-rectorite is attained within the first hour; (2) magnetic treatment enhances the potential of Ca-rectorite suspensions in the absence of Cu and reduces that of the suspension in the presence of Cu; (3) magnetic treatment promotes the sorption of Cu onto Ca-rectorite, especially at low Cu concentrations; (4) the effects of static magnetic fields decrease the pH of Ca-rectorite suspensions whether they contain copper or not. The effect mechanisms of static magnetic field on the sorption of Cu onto Ca-rectorite were discussed. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：265 / 269

页数：5

共 31 条

[1] Adsorption of heavy metals on Na-montmorillonite. Effect of pH and organic substances [J].

Abollino, O ;

Aceto, M ;

Malandrino, M ;

Sarzanini, C ;

Mentasti, E .

WATER RESEARCH, 2003, 37 (07) :1619-1627

[2] Interactions of copper, organic acids, and sulfate in goethite suspensions [J].

Ali, MA ;

Dzombak, DA .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1996, 60 (24) :5045-5053

[3] Adsorption of lead and cadmium ions from aqueous solution to the montmorillonite/water interface [J].

Barbier, F ;

Duc, G ;

Petit-Ramel, M .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2000, 166 (1-3) :153-159

[4] Effects of magnetic fields on the phosphating process [J].

Bikulcius, G ;

Burokas, V ;

Martusiene, A ;

Matulionis, E .

SURFACE & COATINGS TECHNOLOGY, 2003, 172 (2-3) :139-143

[5] Orienting effect of magnetic field on some copper metallomesogen powders: single crystal-like alignment [J].

Bose, M ;

Ohta, K ;

Babu, Y ;

Sastry, MD .

CHEMICAL PHYSICS LETTERS, 2000, 324 (5-6) :330-336

[6] Modelling the sorption of Zn and Ni on Ca-montmorillonite [J].

Bradbury, MH ;

Baeyens, B .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1999, 63 (3-4) :325-336

[7] Aspects of kaolinite characterization and retention of Pb and Cd [J].

Coles, CA ;

Yong, RN .

APPLIED CLAY SCIENCE, 2002, 22 (1-2) :39-45

[8] Thermal studies of pharmaceutical clay systems .2. Sepiolite-based systems [J].

delHoyo, C ;

Rives, V ;

Vicente, MA .

THERMOCHIMICA ACTA, 1996, 286 (01) :105-117

[9] A kinetic study of the copper exchange reaction on a sodium-montmorillonite clay mineral in acetonitrile and dimethylformamide [J].

ElBatouti, M ;

Zaghloul, AA ;

Hanna, MT .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 180 (01) :106-110

[10]

Ellingsen FT., 1979, VATTEN, V35, P309

← 1 2 3 4 →