Application of the radiotracer technique for the study of the specific anion adsorption on Al2O3 in acidic medium

被引：22
作者：
Horányi, G
Joó, P
机构：
[1] Hungarian Acad Sci, Chem Res Ctr, Inst Chem, H-1525 Budapest, Hungary
[2] Univ Debrecen, Dept Colloid Chem, H-4010 Debrecen, Hungary
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2000年 / 231卷 / 02期
基金：
匈牙利科学研究基金会;
关键词：
specific adsorption; sulfate; gamma-Al2O3; radiotracer technique;
D O I：
10.1006/jcis.2000.7178
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：
The specific adsorption of radiolabeled anions (sulfate, chloride) from perchlorate supporting electrolyte on gamma -Al2O3 powder has been investigated. It was demonstrated that a measurable adsorption occurs only at pH values under pH 6, The adsorption capacity of a given amount of gamma -Al2O3 powder tends to a limiting value with decreasing pH, A Langmuir-like adsorption isotherm describes the concentration dependence of the adsorption of sulfate species. It was found that the experimental results are very similar to those obtained in the case of hematite, (C) 2000 Academic Press.
引用
收藏
页码：373 / 378
页数：6
相关论文
共 42 条
[1]   BORIC-ACID ADSORPTION ON MAGNETITE AND ZIRCONIUM DIOXIDE [J].
BLESA, MA ;
MAROTO, AJG ;
REGAZZONI, AE .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1984, 99 (01) :32-40
[2]   ADSORPTION OF SOME DIVALENT-CATIONS FROM AQUEOUS-SOLUTION ON PRECIPITATED SILICA [J].
BYE, GC ;
MCEVOY, M ;
MALATI, MA .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1983, 79 :2311-2318
[3]   Adsorption characteristics of iron-cyanide complex on gamma-Al2O3 [J].
Cheng, WP ;
Huang, CP .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 181 (02) :627-634
[4]   Adsorption behavior of iron-cyanide onto γ-Al2O3 interface:: A coagulation approach [J].
Cheng, WP ;
Huang, CP ;
Pan, JRS .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1999, 213 (01) :204-207
[5]   Sorption of Cr(III) on silica and aluminium oxide:: experiments and modelling [J].
Csobán, K ;
Joó, P .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1999, 151 (1-2) :97-112
[6]   Sorption experiments of Cr(III) onto silica [J].
Csoban, K ;
Parkanyi-Berka, M ;
Joo, P ;
Behra, P .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1998, 141 (03) :347-364
[7]  
Csoban K, 1996, MAGY KEM FOLY, V102, P89
[8]   Sorption of chromium hydroxide sol on silica studied by radiotracing [J].
Csoban, K ;
Joo, P .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1997, 219 (01) :19-24
[9]   SURFACE IONIZATION AND COMPLEXATION AT OXIDE-WATER INTERFACE .1. COMPUTATION OF ELECTRICAL DOUBLE-LAYER PROPERTIES IN SIMPLE ELECTROLYTES [J].
DAVIS, JA ;
JAMES, RO ;
LECKIE, JO .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1978, 63 (03) :480-499
[10]   SURFACE COMPLEXATION MODELS - AN EVALUATION OF MODEL PARAMETER-ESTIMATION USING FITEQL AND OXIDE MINERAL TITRATION DATA [J].
HAYES, KF ;
REDDEN, G ;
ELA, W ;
LECKIE, JO .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1991, 142 (02) :448-469
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