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Title:Transformation of Trichloromethanes in Iron(ii)-Containing Environments
Author(s):Cervini-Silva, Javiera
Doctoral Committee Chair(s):Larson, Richard A.
Department / Program:Natural Resrouces and Environmental Sciences
Discipline:Natural Resrouces and Environmental Sciences
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Biogeochemistry
Abstract:The oxidation state of structural Fe in clay minerals greatly alters the surface chemistry, and has a large impact on clay-organic interactions. RCCl3 were reacted with oxidized, reduced, and reoxidized forms of three different smectites, montmorillonite (Upton), ferruginous smectite (SWa-1), and nontronite (NG-1), in aqueous suspension. The adsorption rate of RCCl3 in clay minerals showed a strong correlation with the iron(II) content of the clay (r2 = 0.94). The clay surface behaves as a Bronsted base and promotes RCCl3 dehydrochlorination (elimination). The adsorption kinetics at the water-clay interface could be described by the formation of a precursor complex prior to RCCl3 dehydrochlorination.
Issue Date:1999
Type:Text
Language:English
Description:143 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1999.
URI:http://hdl.handle.net/2142/83143
Other Identifier(s):(MiAaPQ)AAI9952983
Date Available in IDEALS:2015-09-25
Date Deposited:1999


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