The ionic exchange process of cobalt, nickel and copper(II) in alkaline and acid-layered titanates

被引：60

作者：

Cardoso, VD

de Souza, AG

Sartoratto, PPC

Nunes, LM

机构：

[1] Univ Fed Goias, Inst Quim, BR-74001970 Goiania, Go, Brazil

[2] Univ Fed Paraiba, Dept Quim, CCEN, BR-58059900 Joao Pessoa, Paraiba, Brazil

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2004年 / 248卷 / 1-3期

关键词：

titanates; ion exchange; cobalt; nickel and copper;

D O I：

10.1016/j.colsurfa.2004.09.012

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：

A series of titanates. K2Ti4O9 and Na2Ti3O7 and their respective acid forms, were prepared and characterized by X-ray diffraction and thermogravimetry. The ion-exchange capacity of the alkaline and acids forms towards Co, Ni and Cu(II) Sulphate were Studied and it was verified that as a general behavior. the copper cations have the highest ion-exchange capacity. Furthermore. the sodium matrix Na2Ti3O7 exhibits the largest ion-exchange capacity of 2.66 mmol g(-1). when compared with the other matrices. Based on the thermogravimetric results and EDTA titration. the stoichiometric formulae were proposed for the synthesized compounds. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：145 / 149

页数：5

共 21 条

[1] Novel methods for preparation of ion-exchangeable thin films [J].