STUDY OF THE ADSORPTIVE PROPERTIES OF A PILLARED CLAY TOWARDS CU2+ AND CD2+ AS A FUNCTION OF PH

被引:14
作者
BERGAOUI, L [1 ]
LAMBERT, JF [1 ]
SUQUET, H [1 ]
CHE, M [1 ]
机构
[1] UNIV PARIS 06,REACT SURFACE LAB,CNRS,URA 1106,F-75252 PARIS 05,FRANCE
关键词
D O I
10.1051/jcp/1995921486
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
On the basis of both macroscopic and microscopic data (adsorption isotherms at variable pi-Is, NMR spectroscopy for Cd2+ and EPR for Cu2+), we propose a chemical model of the interface reactions between metal cations and a clay pillared by hydroxyaluminic polycations. The pillars may be considered as an ultradispersed aluminic phase situated between the layers and are responsible for its adsorptive properties, which are similar, but not identical, to those of an alumina surface. The existence of ionisable acid sites on the pillars favors the adsorption of M(2+) cations at pH values inferior to those reported for Al oxides and hydroxides.
引用
收藏
页码:1486 / 1505
页数:20
相关论文
共 21 条
[1]   CU-II ON AL-13-PILLARED SAPONITES - MACROSCOPIC ADSORPTION MEASUREMENTS AND EPR-SPECTRA [J].
BERGAOUI, L ;
LAMBERT, JF ;
SUQUET, H ;
CHE, M .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (07) :2155-2161
[2]  
BERGAOUI L, 1994, THESIS U P M CURIE
[3]  
BERGAOUI L, 1995, IN PRESS J CHEM SOC, V90
[4]   STEREOCHEMISTRY OF HYDRATED COPPER(II) IONS ON INTERLAMELLAR SURFACES OF LAYER SILICATES - ELECTRON-SPIN RESONANCE STUDY [J].
CLEMENTZ, DM ;
PINNAVAIA, TJ ;
MORTLAND, MM .
JOURNAL OF PHYSICAL CHEMISTRY, 1973, 77 (02) :196-200
[5]   HETEROGENEITY OF PROTON BINDING-SITES AT THE OXIDE SOLUTION INTERFACE [J].
CONTESCU, C ;
JAGIELLO, J ;
SCHWARZ, JA .
LANGMUIR, 1993, 9 (07) :1754-1765
[7]   THERMODYNAMICS OF COPPER(II)-CALCIUM EXCHANGE ON BENTONITE CLAY [J].
ELSAYED, MH ;
BURAU, RG ;
BABCOCK, KL .
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS, 1970, 34 (03) :397-&
[8]   SORPTION OF LEAD AND CADMIUM SPECIES BY CLAY-MINERALS [J].
FARRAH, H ;
PICKERING, WF .
AUSTRALIAN JOURNAL OF CHEMISTRY, 1977, 30 (07) :1417-1422
[9]   STATIC AND KINETIC-STUDIES OF ADSORPTION DESORPTION OF METAL-IONS ON A GAMMA-AL2O3 SURFACE .1. STATIC STUDY OF ADSORPTION DESORPTION [J].
HACHIYA, K ;
SASAKI, M ;
SARUTA, Y ;
MIKAMI, N ;
YASUNAGA, T .
JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (01) :23-27
[10]   INTERACTION OF PB-2+ WITH HYDROUS GAMMA-AL-2O-3 [J].
HOHL, H ;
STUMM, W .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1976, 55 (02) :281-288