Effects of carbon surface chemistry and solution pH on the adsorption of binary aromatic solutes

被引:34
作者
Haghseresht, F
Nouri, S
Lu, GQM [1 ]
机构
[1] Univ Queensland, Dept Chem Engn, NanoMat Ctr, Brisbane, Qld 4072, Australia
[2] Urumieh Univ, Dept Chem, Urumieh, Iran
关键词
activated carbon; adsorption; adsorption properties; surface properties;
D O I
10.1016/S0008-6223(02)00437-2
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
Adsorption of p-cresol, nitrobenzene and p-nitrophenol on treated and untreated carbons is investigated systematically. The effects of carbon surface chemistry and solution pH are studied and discussed. All adsorption experiments were carried out in pH-controlled solutions to examine the adsorption properties of the adsorption systems where the solutes are in molecular as well as ionic forms. Using the homogeneous Langmuir equation, the single solute parameters are determined. These parameters are then used to predict the binary solute adsorption isotherms and gain further insights into the adsorption process. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:881 / 892
页数:12
相关论文
共 21 条
[1]  
COUGHLIN ROBERT W., 1968, ENVIRON SCI TECHNOL, V2, P291, DOI 10.1021/es60016a002
[2]   Nonhomogeneity effects in adsorption from gas and liquid phases on activated carbons [J].
Derylo-Marczewska, A ;
Marczewski, AW .
LANGMUIR, 1999, 15 (11) :3981-3986
[3]  
Derylo-Marczewska A., 1987, SURF COLLOID SCI, V14, P301
[4]   A general model for adsorption of organic solutes from dilute aqueous solutions on heterogeneous solids: Application for prediction of multisolute adsorption [J].
DeryloMarczewska, A ;
Marczewski, AW .
LANGMUIR, 1997, 13 (05) :1245-1250
[5]   Effect of chemical surface heterogeneity on the adsorption mechanism of dissolved aromatics on activated carbon [J].
Franz, M ;
Arafat, HA ;
Pinto, NG .
CARBON, 2000, 38 (13) :1807-1819
[6]  
FRITZ W, 1981, CHEM ENG SCI, V36, P721, DOI 10.1016/0009-2509(81)85087-7
[7]   SIMULTANEOUS ADSORPTION EQUILIBRIA OF ORGANIC SOLUTES IN DILUTE AQUEOUS-SOLUTIONS ON ACTIVATED CARBON [J].
FRITZ, W ;
SCHLUEND.EU .
CHEMICAL ENGINEERING SCIENCE, 1974, 29 (05) :1279-1282
[8]   A MODEL FOR ADSORPTION OF WEAK ELECTROLYTES ON SOLIDS AS A FUNCTION OF PH .I. CARBOXYLIC ACID-CHARCOAL SYSTEMS [J].
GETZEN, FW ;
WARD, TM .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1969, 31 (04) :441-&
[9]   Effects of the solute ionization on the adsorption of aromatic compounds from dilute aqueous solutions by activated carbon [J].
Haghseresht, F ;
Nouri, S ;
Lu, GQ .
LANGMUIR, 2002, 18 (05) :1574-1579
[10]   APPLICATION OF DUBININ-RADUSHKEVICH-TYPE EQUATION FOR DESCRIBING BISOLUTE ADSORPTION FROM DILUTE AQUEOUS-SOLUTIONS ON ACTIVATED CARBON [J].
JARONIEC, M ;
DERYLO, A .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1981, 84 (01) :191-195