XPS analysis at constant ionic strength of Ca-Cd and Ca-Pb exchanges on a Ca-montmorillonite

被引：5

作者：

Auboiroux, M

Baillif, P

Touray, JC

Bergaya, F

机构：

[1] Ecole Super Energie & Mat, UMR 6530, F-45072 Orleans 02, France

[2] Univ Orleans, CNRS, Ctr Rech Mat Divisee, F-45071 Orleans, France

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES | 1998年 / 327卷 / 11期

关键词：

montmorillonite; ionic exchange; XPS analysis; Cd; Pb;

D O I：

10.1016/S1251-8050(99)80042-1

中图分类号：

P [天文学、地球科学];

学科分类号：

07 [理学];

摘要：

Cationic exchange measurements, in calcium clay in contact with Me2+(NO3)(2) solutions at ionic strength maintained constant by adding Ca(NO3)(2), are difficult to establish when the exchanged cations released in solution are measured by application of the concentrations difference method. XPS analysis of the cations retained by the clay allows the removal of this analytical difficulty. This is illustrated by the example of Ca-Cd and Ca-Pb exchanges on a Ca-montmorillonite. ((C) Academie des sciences / Elsevier, Paris.).

引用

页码：727 / 730

页数：4

共 12 条

[1]

Fixation of Zn2+ and Pb2+ by a Ca-montmorillonite in brines and dilute solutions: Preliminary results [J].