Effect of adsorption of nitroaromatic compounds on the characteristics of bound water layers in aqueous suspensions of activated carbons

被引：28
作者：
Leboda, R
Turov, VV
Tomaszewski, W
Gun'ko, VM
Skubiszewska-Zieba, J
机构：
[1] Marie Curie Sklodowska Univ, Fac Chem, Dept Chem Phys, PL-20031 Lublin, Poland
[2] Inst Surface Chem, UA-03164 Kiev, Ukraine
[3] Off State Protect, Dept Criminalist, PL-02131 Warsaw, Poland
来源：
CARBON | 2002年 / 40卷 / 03期
关键词：
activated carbon; adsorption; microporosity; surface properties;
D O I：
10.1016/S0008-6223(01)00132-4
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 impact of chemical treatment (oxidation, reduction) of microporous carbon prepared from plum stones on the structural parameters was analysed using the nitrogen adsorption method. The effects of pre-adsorption of 2,4,6-trinitrotoluene (TNT) and 1-chloro-2,4-dinitrobenzene (CDNB) on the characteristics of the interfacial water layers in the aqueous suspensions of these materials were explored using H-1 NMR spectroscopy with freezing out of the bulk water between 2 10 and 273 K. Substantial variations in the Gibbs free energy of the interfacial water in the aqueous suspension of treated carbons were observed, especially for a reduced sample with pre-adsorbed nitroaromatics. due to changes in the hydrophilic-hydrophobic properties of the systems. (C) 2002 Published by Elsevier Science Ltd.
引用
收藏
页码：389 / 396
页数：8
相关论文
共 37 条
[1]   Acidic and basic sites on the surface of porous carbon [J].
Barton, SS ;
Evans, MJB ;
Halliop, E ;
MacDonald, JAF .
CARBON, 1997, 35 (09) :1361-1366
[2]   Structural and energetic heterogeneities of microporous active carbons [J].
Burevski, D .
CARBON, 1997, 35 (07) :1001-1004
[3]   Evaluation of two new examples of graphitized carbon blacks for use in solid-phase extraction cartridges [J].
Crescenzi, C ;
DiCorcia, A ;
Passariello, G ;
Samperi, R ;
Carou, MIT .
JOURNAL OF CHROMATOGRAPHY A, 1996, 733 (1-2) :41-55
[4]   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
[5]   Highly dispersed X/SiO2 and C/X/SiO2 (X = alumina, titania, alumina/titania) in the gas and liquid media [J].
Gun'ko, VM ;
Zarko, VI ;
Leboda, R ;
Marciniak, M ;
Janusz, W ;
Chibowski, S .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2000, 230 (02) :396-409
[6]   Structure of silica gel Si-60 and pyrocarbon/silica gel adsorbents thermally and hydrothermally treated [J].
Gun'ko, VM ;
Leboda, R ;
Skubiszewska-Zieba, J ;
Turov, VV ;
Kowalczyk, P .
LANGMUIR, 2001, 17 (11) :3148-3161
[7]   Active site nature of pyrogenic alumina/silica and water bound to surfaces [J].
Gunko, VM ;
Turov, VV ;
Zarko, VI ;
Voronin, EF ;
Tischenko, VA ;
Dudnik, VV ;
Pakhlov, EM ;
Chuiko, AA .
LANGMUIR, 1997, 13 (06) :1529-1544
[8]   Trace analysis of military high explosives (2,4,6-trinitrotoluene and hexahydro-1,3,5-trinitro-1,3,5-triazine) in agricultural crops [J].
Harvey, SD ;
Galloway, H ;
Krupsha, A .
JOURNAL OF CHROMATOGRAPHY A, 1997, 775 (1-2) :117-124
[9]   A METHOD FOR MEASURING SURFACE-AREA OF CARBON OF CARBON-COATED SILICA-GEL [J].
KAMEGAWA, K ;
YOSHIDA, H .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1990, 63 (12) :3683-3685
[10]   WATER AND THE SILICA SURFACE AS STUDIED BY VARIABLE-TEMPERATURE HIGH-RESOLUTION H-1-NMR [J].
KINNEY, DR ;
CHUANG, IS ;
MACIEL, GE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (15) :6786-6794
1234