Adsorption of organic phenols onto hexadecyltrimethylammonium-treated montmorillonite

被引:41
作者
Kim, YS
Song, DI
Jeon, JW
Choi, SJ
机构
[1] KYUNGPOOK NATL UNIV,DEPT CHEM ENGN,TAEGU 702701,SOUTH KOREA
[2] KYUNGPOOK NATL UNIV,DEPT ENVIRONM ENGN,TAEGU 702701,SOUTH KOREA
关键词
D O I
10.1080/01496399608000829
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Montmorillonite used as an adsorbent was organically modified by using a cationic surfactant, hexadecyltrimethylammonium (HDTMA)I to enhance the removal capacity of organic phenol contaminants dissolved in an aqueous solution. This modification produces a change of the surface property of montmorillonite from hydrophilic to organophilic. The single- and multicomponent competitive adsorptions were performed in a batch reactor to investigate the removal of three toxic organic phenols, 2-chlorophenol, 3-cyanophenol, and 4-nitrophenol, on the modified HDTMA-montmorillonite. It was observed from the experimental results that the adsorption affinity for HDTMA-montmorillonite was 2-chlorophenol, 4-nitrophenol, 3-cyanophenol in decreasing order. Langmuir and the Redlich-Peterson models were used to analyze the single-component adsorption results, while the IAST and the L . CM models predicted the multicomponent adsorption equilibria. These models yielded favorable representations of both individual and competitive adsorption behaviors.
引用
收藏
页码:2815 / 2830
页数:16
相关论文
共 22 条
[1]  
[Anonymous], 1977, CLAY COLLOID CHEM
[2]   ADSORPTION OF ORGANIC CATIONS TO NATURAL MATERIALS [J].
BROWNAWELL, BJ ;
CHEN, H ;
COLLIER, JM ;
WESTALL, JC .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1990, 24 (08) :1234-1241
[3]   USE OF TAILORED BENTONITE FOR SELECTIVE REMOVAL OF ORGANIC POLLUTANTS [J].
CADENA, F .
JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1989, 115 (04) :756-767
[4]  
COONEY CW, 1987, CHEM ENG EDUC, P200
[5]  
COWAN CT, 1962, P 9 NAT C CLAY CLAY, P459
[6]  
EVANS JC, 1989, 68 ANN M JAN 22 26 W
[7]  
FEW A., 1956, J COLLOID SCI, V11, P34, DOI [10.1016/0095-8522(56)90016-2, 10.1016/0021-9797(56)90005-4, DOI 10.1016/0021-9797(56)90005-4]
[8]  
Haak J. R., 1993, PHYSICO CHEM PROPERT
[9]  
Jeon YW, 1992, FUEL SCI TECHN INT, V10, P697, DOI 10.1080/08843759208916017
[10]  
Jordan J.W., 1949, J PHYS COLLOID CHEM, V53, P294, DOI [10.1021/j150467a009, DOI 10.1021/J150467A009]