Results overview: Found 14 records in 0.02 seconds.
Articles, 13 records found
Contributions to meetings and congresses, 1 records found
Articles 13 records found  1 - 10next  jump to record:
1.
11 p, 917.5 KB Functionalization of the interlayer surfaces of kaolinite by alkylammonium groups from ionic liquids / Letaief, Sadok (University of Ottawa. Centre for Catalysis Research and Innovation and Department of Chemistry) ; Detellier, Christian (University of Ottawa. Centre for Catalysis Research and Innovation and Department of Chemistry)
The objective of this studywas to design new, functional, nanostructured materials from the abundant claymineral kaolinite, in spite of development problems with the interlayer chemistry of kaolinite because of its non-swelling properties. [...]
2009 - 10.1346/CCMN.2009.0570510
Clays and Clay Minerals, Vol. 57, Núm. 5 (2009) , p. 638-648  
2.
11 p, 2.4 MB Interlayer conformations of intercalated dodecyltrimethylammonium in rectorite as determined by ftir, xrd, and tg analyses / Li, Zhaohui (National Cheng Kung University. Department of Earth Sciences) ; Jiang, Wei-Teh (National Cheng Kung University. Department of Earth Sciences)
Intercalation of a wide variety of alkylammonium cations into the interlayer spaces of swelling clay minerals leads to many different applications, ranging from surface-charge measurements to rendering the clay compatible for the preparation of clay nanocomposites, but knowledge of the exact conformation of the intercalated organic species is still incomplete, thus preventing a full understanding of this process. [...]
2009 - 10.1346/CCMN.2009.0570206
Clays and Clay Minerals, Vol. 57, Núm. 2 (2009) , p. 194-204  
3.
8 p, 488.3 KB Adsorption of a C10E3 non-ionic surfactant on a Ca-smectite / Guegan, Regis (CNRS-Université d'Orléans. Institut des Sciences de la Terre d'Orléans) ; Gautier, Mathieu (CNRS-Université d'Orléans. Institut des Sciences de la Terre d'Orléans) ; Beny, Jean-Michel (CNRS-Université d'Orléans. Institut des Sciences de la Terre d'Orléans) ; Muller, Fabrice (CNRS-Université d'Orléans. Institut des Sciences de la Terre d'Orléans)
The transformation of clay minerals into organo-clays by surfactant intercalation is of great environmental and industrial importance because it causes the clay to attract hydrophobic contaminants and other non-polar organic compounds, but a better understanding is needed of the mechanisms by which different classes of surfactants are intercalated. [...]
2009 - 10.1346/CCMN.2009.0570411
Clays and Clay Minerals, Vol. 57, Núm. 4 (2009) , p. 502-509  
4.
16 p, 1.3 MB The effect of surface charge and wettability on H2O self diffusion in compacted clays / Schampera, Birgit (Leibniz University Hannover. Institute of Soil Science) ; Dultz, Stefan (Leibniz University Hannover. Center for Solid State Chemistry and New Materials)
Organo-clays are of interest in the modification of anion transport properties in engineered barriers. In the present study, surface charge and wettability were assessed for tracking changes in the effective diffusion coefficient (D) by the formation or suppression of bound HO layers on the external surfaces of clays. [...]
2011 - 10.1346/CCMN.2011.0590107
Clays and Clay Minerals, Vol. 59, Núm. 1 (2011) , p. 42-57  
5.
9 p, 941.9 KB Eu (III) coprecipitation with the trioctahedral clay mineral, hectorite / Pieper, Heike (Forschungszentrum Karlsruhe. Institut für Nukleare Entsorgung) ; Bosbach, Dirk (Forschungszentrum Karlsruhe. Institut für Nukleare Entsorgung) ; Panak, Petra J. (Forschungszentrum Karlsruhe. Institut für Nukleare Entsorgung) ; Rabung, Thomas (Forschungszentrum Karlsruhe. Institut für Nukleare Entsorgung) ; Fanghänel, Thomas (Forschungszentrum Karlsruhe. Institut für Nukleare Entsorgung)
Various secondary phases formed during alteration/dissolution of HLW (high-level nuclear waste) borosilicate glass represent a significant retention potential for radionuclides including trivalent actinides. [...]
2006 - 10.1346/CCMN.2006.0540106
Clays and Clay Minerals, Vol. 54, Núm. 1 (2006) , p. 45-53  
6.
11 p, 458.8 KB Microstructure of organo-bentonites in water and the effect of steric hindrance on the uptake of organic compounds / Zhu, Jianxi (Zhejiang University. Department of Environmental Science) ; Zhu, Lizhong (Zhejiang University. Department of Environmental Science) ; Zhu, Runliang (Zhejiang University, Department of Environmental Science) ; Chen, Boaliang (Zhejiang University. Department of Environmental Science)
To further elucidate adsorption-to-partition transitional mechanisms which have been proposed previously for organo-bentonites with different surfactant loadings, the structural characteristics of interlayer surfactant aggregates on organo-bentonite with different surfactant cetyltrimethylammonium bromide loading levels (0. [...]
2008 - 10.1346/CCMN.2008.0560202
Clays and Clay Minerals, Vol. 56, Núm. 2 (2008) , p. 144-154  
7.
8 p, 715.1 KB Natural rubber nanocomposites with organo-modified bentonite / Hrachová, Jana (Slovak Academy of Sciences. Institute of Inorganic Chemistry) ; Komadel, Peter (Slovak Academy of Sciences. Institute of Inorganic Chemistry) ; Chodák, Ivan (Slovak Academy of Sciences. Polymer Institute)
Enhancement of the physico-chemical properties of elastomers can be achieved by the addition of fillers, such as silica, but the search for less expensive alternative materials continues. The objective of this study was to investigate natural or organically modified clay minerals as such an alternative. [...]
2009 - 10.1346/CCMN.2009.0570405
Clays and Clay Minerals, Vol. 57, Núm. 4 (2009) , p. 444-451  
8.
9 p, 560.6 KB Sorption of naringin from aqueous solution by modified clay / Arellano-Cardenas, Sofia (Escuela Nacional de Ciencias Biologicas-IPN. Departamento de Graduados e Investigacion en Alimentos) ; Gallardo-Velazquez, Tzayhri (Escuela Nacional de Ciencias Biologicas-IPN. Departamento de Graduados e Investigacion en Alimentos) ; Poumian-Gamboa, Gloria V. (Escuela Nacional de Ciencias Biologicas-IPN. Departamento de Graduados e Investigacion en Alimentos) ; Osorio-Revilla, Guillermo (Escuela Nacional de Ciencias Biologicas-IPN- Departamento de Graduados e Investigacion en Alimentos) ; Lopez-Cortez, Socorro (Escuela Nacional de Ciencias Biologicas-IPN. Departamento de Graduados e Investigacion en Alimentos) ; Rivera-Espinoza, Yadira (Escuela Nacional de Ciencias Biologicas-IPN. Departamento de Graduados e Investigacion en Alimentos)
The flavonoid naringin is the main source of the undesirable bitter taste in some citrus juices. In commercial debittering processes, the naringin is adsorbed on non-ionic polymeric resins. Organo-clays (OCs), which have been used as sorbents for organic pollutants, could also have affinity for the naringin molecule, and thus potentially could serve as a debittering agent. [...]
2012 - 10.1346/CCMN.2012.0600205
Clays and Clay Minerals, Vol. 60, Núm. 2 (2012) , p. 153-161  
9.
12 p, 1012.4 KB Near-infrared spectroscopic analysis of acid-treated organo-clays / Madejová, Jana (SAS. Institute ofInorganic Chemistry) ; Pálková, Helena (SAS. Institute ofInorganic Chemistry) ; Pentrak, Martin (SAS. Institute ofInorganic Chemistry) ; Komadel, Peter (SAS. Institute ofInorganic Chemistry)
The potential use of near-infrared (NIR) spectroscopy as a characterization tool for organo- clays would be a great asset but little work has been done in this regard because the application ofNIR to clay mineral studies is a relatively new phenomenon. [...]
2009 - 10.1346/CCMN.2009.0570311
Clays and Clay Minerals, Vol. 57, Núm. 3 (2009) , p. 392-403  
10.
11 p, 1.2 MB Characterization of organo-bentonites obtained from different linear-chain quaternary alkylammmonium salts / Erkan, Ilker (Karadeniz Technical University. Department of Mining Engineering) ; Alp, Ibrahim (Karadeniz Technical University. Department of Mining Engineering) ; Çelik, Mehmet S. (Istanbul Technical University. Department of Mineral Processing Engineering)
The effects of surfactants on bentonites have been of great scientific interest for many years. Even though quaternary alkylammonium salts (QAS) have been studied, very few data are available on the comparative performance of different chain-length QAS for the modification of the surface properties and adsorption properties of bentonites. [...]
2010 - 10.1346/CCMN.2010.0580607
Clays and Clay Minerals, Vol. 58, Núm. 6 (2010) , p. 792-802  

Articles : 13 records found   1 - 10next  jump to record:
Contributions to meetings and congresses 1 records found  
1.
5 p, 31.4 KB Arxiu docent d'imatges radiològiques digitalitzadas (www.radiologico.org) / Martínez Noguera, Antonio (Universitat Autònoma de Barcelona. Departament de Medicina) ; Andreu, Jordi ; Mallada, Albert
El "Arxiu Docent d'imatges radiològiques" és un projecte que sorgeix després de l'experiència de més de 25 anys d'ensenyament als alumnes de tercer i sisè de medicina. Es basa en una col·lecció de casos que es presenten en pantalla, amb la finalitat d'oferir a l'alumne un primer contacte amb imatges radiològiques digitalitzades i proporcionar un entrenament visual, ja sigui per a distingir les diferents tècniques radiològiques, com per a aprendre a identificar les troballes radiològiques més habituals. [...]
2006
Jornada de Campus d'Innovació Docent, 3a : 2006  

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