The surface properties of zeolites A, X, Y and natural zeolite clinoptilolite (CLI) functionalized by cationic surfactants were investigated. The quaternary ammonium type surfactants, such as hexadecyltrimethylammonium (HDTMA) chloride, stearildimethylbenzylammonium (SDMBA) chloride and distearildimethylammonium (DSDMA) chloride, replaced inorganic cations like Na+ and Ca2+ on the external surface of zeolites. The adsorption capacities of all organic cations followed the order of CLI > CaY > CaX > CaA > NaY > NaX > NaA and increased with the increase of Si/Al molar ratio in zeolite structure. This modification resulted in an alteration in the surface property of zeolites - it changed from hydrophilic to hydrophobic. The adsorption of selected pesticides with different hydrophobicity on surfactant-modified zeolites was studied. It is shown that surfactant-modified zeolites can be used for removal of pesticides from the environment. The increase in hydrophobicity of pesticides resulted i...n an increase in pesticide adsorption on SDMBA and DSDMA modified zeolites.
TY - JOUR
AU - Jovanović, V.
AU - Dondur, Vera
AU - Damjanović, Lj.
AU - Zakrzewska, J.
AU - Tomašević-Čanović, Magdalena
PY - 2006
UR - https://ritnms.itnms.ac.rs/handle/123456789/101
AB - The surface properties of zeolites A, X, Y and natural zeolite clinoptilolite (CLI) functionalized by cationic surfactants were investigated. The quaternary ammonium type surfactants, such as hexadecyltrimethylammonium (HDTMA) chloride, stearildimethylbenzylammonium (SDMBA) chloride and distearildimethylammonium (DSDMA) chloride, replaced inorganic cations like Na+ and Ca2+ on the external surface of zeolites. The adsorption capacities of all organic cations followed the order of CLI > CaY > CaX > CaA > NaY > NaX > NaA and increased with the increase of Si/Al molar ratio in zeolite structure. This modification resulted in an alteration in the surface property of zeolites - it changed from hydrophilic to hydrophobic. The adsorption of selected pesticides with different hydrophobicity on surfactant-modified zeolites was studied. It is shown that surfactant-modified zeolites can be used for removal of pesticides from the environment. The increase in hydrophobicity of pesticides resulted in an increase in pesticide adsorption on SDMBA and DSDMA modified zeolites.
PB - Trans Tech Publications Ltd, Durnten-Zurich
T2 - Recent Developments in Advanced Materials and Processes
T1 - Improved materials for environmental application: Surfactant-modified zeolites
EP - 228
SP - 223
VL - 518
DO - 10.4028/www.scientific.net/MSF.518.223
UR - conv_515
ER -
@article{
author = "Jovanović, V. and Dondur, Vera and Damjanović, Lj. and Zakrzewska, J. and Tomašević-Čanović, Magdalena",
year = "2006",
abstract = "The surface properties of zeolites A, X, Y and natural zeolite clinoptilolite (CLI) functionalized by cationic surfactants were investigated. The quaternary ammonium type surfactants, such as hexadecyltrimethylammonium (HDTMA) chloride, stearildimethylbenzylammonium (SDMBA) chloride and distearildimethylammonium (DSDMA) chloride, replaced inorganic cations like Na+ and Ca2+ on the external surface of zeolites. The adsorption capacities of all organic cations followed the order of CLI > CaY > CaX > CaA > NaY > NaX > NaA and increased with the increase of Si/Al molar ratio in zeolite structure. This modification resulted in an alteration in the surface property of zeolites - it changed from hydrophilic to hydrophobic. The adsorption of selected pesticides with different hydrophobicity on surfactant-modified zeolites was studied. It is shown that surfactant-modified zeolites can be used for removal of pesticides from the environment. The increase in hydrophobicity of pesticides resulted in an increase in pesticide adsorption on SDMBA and DSDMA modified zeolites.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Recent Developments in Advanced Materials and Processes",
title = "Improved materials for environmental application: Surfactant-modified zeolites",
pages = "228-223",
volume = "518",
doi = "10.4028/www.scientific.net/MSF.518.223",
url = "conv_515"
}
Jovanović, V., Dondur, V., Damjanović, Lj., Zakrzewska, J.,& Tomašević-Čanović, M.. (2006). Improved materials for environmental application: Surfactant-modified zeolites. in Recent Developments in Advanced Materials and Processes
Trans Tech Publications Ltd, Durnten-Zurich., 518, 223-228.
https://doi.org/10.4028/www.scientific.net/MSF.518.223
conv_515
Jovanović V, Dondur V, Damjanović L, Zakrzewska J, Tomašević-Čanović M. Improved materials for environmental application: Surfactant-modified zeolites. in Recent Developments in Advanced Materials and Processes. 2006;518:223-228.
doi:10.4028/www.scientific.net/MSF.518.223
conv_515 .
Jovanović, V., Dondur, Vera, Damjanović, Lj., Zakrzewska, J., Tomašević-Čanović, Magdalena, "Improved materials for environmental application: Surfactant-modified zeolites" in Recent Developments in Advanced Materials and Processes, 518 (2006):223-228,
https://doi.org/10.4028/www.scientific.net/MSF.518.223 .,
conv_515 .
