Open Access
Polymerization of aromatic molecules on smectite
M.M. Mortland,L.J. Halloran +1 more
TLDR
When benzene or phenol are adsorbed on smectite containing Fe(III) or Cu(II) on the exchange complex, higher molecular weight products are formed.Abstract:
When benzene or phenol are adsorbed on smectite containing Fe(III) or Cu(II) on the exchange complex, higher molecular weight products are formed. Evidence for these products is provided by mass spectroscopy. In the case of benzene most of the reaction products cannot be attributed to coupled benzene rings, while extensive coupling occurs for phenol. Electron spin resonance spectroscopy provides evidence for radical cation formation of the aromatic molecules. The involvement of these radical cations is thus proposed in the formation of the higher molecular weight species. The relevance of these reactions to the natural systems of soils and sediments is suggested.read more
Citations
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Journal ArticleDOI
Incorporation of xenobiotics into soil humus.
Jean-Marc Bollag,M. J. Loll +1 more
TL;DR: The binding of pollutants to soil organic matter is a cause of some ecological concern and the incorporation of man-made molecules into organic matter may affect soil structure and various physicochemical, microbiological and biochemical soil processes.
Journal ArticleDOI
Effects of exchanged cation and layer charge on the sorption of water and EGME vapors on montmorillonite clays
TL;DR: In this paper, the effects of exchanged cation and layer charge on the sorption of water and ethylene glycol monoethyl ether (EGME) vapors on montmorillonite have been studied on SAz-1 and SWy-1 source clays.
Book ChapterDOI
Mixtures of environmental pollutants: effects on microorganisms and their activities in soils.
Balasubramanian Ramakrishnan,Mallavarapu Megharaj,Kadiyala Venkateswarlu,N. Sethunathan,Ravi Naidu +4 more
TL;DR: There is an urgent need to generate sufficient, suitable, and long-term modeling data that have higher predictability when assessing pollutant mixture effects on microorganisms, to improve risk assessment at contaminated sites and to help devise more effective bioremediation strategies.
Journal ArticleDOI
Chemical reactions of organic compounds on clay surfaces.
Yuko Soma,Mitsuyuki Soma +1 more
TL;DR: Attempts have been made to clarify the importance of the chemical nature of molecules, their structures and their functional groups, and the Brönsted or Lewis acidity of clay minerals.
Book ChapterDOI
Behavior of pesticides in water-sediment systems.
TL;DR: Not only the physicochemical properties and degradability of a pesticide but also the characteristics of the many phases composing a water-sediment system determine the actual pesticide behavior, and therefore it is necessary to appropriately design an experimental system by considering the real situation of the natural aqueous environment to be examined.
References
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Journal ArticleDOI
Incorporation of xenobiotics into soil humus.
Jean-Marc Bollag,M. J. Loll +1 more
TL;DR: The binding of pollutants to soil organic matter is a cause of some ecological concern and the incorporation of man-made molecules into organic matter may affect soil structure and various physicochemical, microbiological and biochemical soil processes.
Journal ArticleDOI
Effects of exchanged cation and layer charge on the sorption of water and EGME vapors on montmorillonite clays
TL;DR: In this paper, the effects of exchanged cation and layer charge on the sorption of water and ethylene glycol monoethyl ether (EGME) vapors on montmorillonite have been studied on SAz-1 and SWy-1 source clays.
Book ChapterDOI
Mixtures of environmental pollutants: effects on microorganisms and their activities in soils.
Balasubramanian Ramakrishnan,Mallavarapu Megharaj,Kadiyala Venkateswarlu,N. Sethunathan,Ravi Naidu +4 more
TL;DR: There is an urgent need to generate sufficient, suitable, and long-term modeling data that have higher predictability when assessing pollutant mixture effects on microorganisms, to improve risk assessment at contaminated sites and to help devise more effective bioremediation strategies.
Journal ArticleDOI
Chemical reactions of organic compounds on clay surfaces.
Yuko Soma,Mitsuyuki Soma +1 more
TL;DR: Attempts have been made to clarify the importance of the chemical nature of molecules, their structures and their functional groups, and the Brönsted or Lewis acidity of clay minerals.
Book ChapterDOI
Behavior of pesticides in water-sediment systems.
TL;DR: Not only the physicochemical properties and degradability of a pesticide but also the characteristics of the many phases composing a water-sediment system determine the actual pesticide behavior, and therefore it is necessary to appropriately design an experimental system by considering the real situation of the natural aqueous environment to be examined.
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