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Title: Effect of particle association on 2,2{prime}-bipyridyl adsorption onto kaolinite

Abstract

The effect of particle concentration, in kaolin suspensions, on the adsorption of 2,2{prime}-bipyridyl was studied. Adsorption expressed in units of micromoles per gram decreased as a result of the increase in particle concentration and also as a result of the presence of coagulant (0.25 M NaCl). Dispersion treatment with sodium hexametaphosphate increased the adsorption of bipyridyl. The decrease in adsorption with the increase in particle concentration suggests a possible relation between adsorption and flocculation phenomena. On the basis of classic flocculation theory a straight-line relation was obtained between the square root of the adsorption maximum (mmol/L) and particle concentration (g/L). It is concluded that particle association, which is a function of particle concentration, reduces the surface/aqueous interface and consequently the adsorption of bipyridyl.

Authors:
; ;
Publication Date:
Research Org.:
Univ. Nacional del Sur, Bahia Blanca (AR)
OSTI Identifier:
20080254
Resource Type:
Journal Article
Journal Name:
Journal of Colloid and Interface Science
Additional Journal Information:
Journal Volume: 225; Journal Issue: 2; Other Information: PBD: 15 May 2000; Journal ID: ISSN 0021-9797
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; KAOLINITE; BIPYRIDINES; ADSORPTION; FLOCCULATION

Citation Formats

Helmy, A.K., Ferreiro, E.A., and Bussetti, S.G. de. Effect of particle association on 2,2{prime}-bipyridyl adsorption onto kaolinite. United States: N. p., 2000. Web. doi:10.1006/jcis.2000.6758.
Helmy, A.K., Ferreiro, E.A., & Bussetti, S.G. de. Effect of particle association on 2,2{prime}-bipyridyl adsorption onto kaolinite. United States. doi:10.1006/jcis.2000.6758.
Helmy, A.K., Ferreiro, E.A., and Bussetti, S.G. de. Mon . "Effect of particle association on 2,2{prime}-bipyridyl adsorption onto kaolinite". United States. doi:10.1006/jcis.2000.6758.
@article{osti_20080254,
title = {Effect of particle association on 2,2{prime}-bipyridyl adsorption onto kaolinite},
author = {Helmy, A.K. and Ferreiro, E.A. and Bussetti, S.G. de},
abstractNote = {The effect of particle concentration, in kaolin suspensions, on the adsorption of 2,2{prime}-bipyridyl was studied. Adsorption expressed in units of micromoles per gram decreased as a result of the increase in particle concentration and also as a result of the presence of coagulant (0.25 M NaCl). Dispersion treatment with sodium hexametaphosphate increased the adsorption of bipyridyl. The decrease in adsorption with the increase in particle concentration suggests a possible relation between adsorption and flocculation phenomena. On the basis of classic flocculation theory a straight-line relation was obtained between the square root of the adsorption maximum (mmol/L) and particle concentration (g/L). It is concluded that particle association, which is a function of particle concentration, reduces the surface/aqueous interface and consequently the adsorption of bipyridyl.},
doi = {10.1006/jcis.2000.6758},
journal = {Journal of Colloid and Interface Science},
issn = {0021-9797},
number = 2,
volume = 225,
place = {United States},
year = {2000},
month = {5}
}