Resultats globals: 7 registres trobats en 0.02 segons.
Articles, 7 registres trobats
Articles 7 registres trobats  
1.
10 p, 1.2 MB Effect of acid treatment and alkali treatment on nanopore properties of selected minerals / Jozefaciuk, Grzegorz (Institute of Agrophysics. Polish Academy of Sciences) ; Matyka-Sarzynska, Dorota (Institute of Agrophysics. Polish Academy of Sciences)
Bentonite, biotite, illite, kaolin, muscovite, vermiculite and zeolite were acidified or alkalized with HCl or NaOH of concentrations 0. 0, 0. 1, 1. 0 and 5. 0 mole dm at room temperature for 2 weeks and converted into Ca homoionic forms. [...]
2006 - 10.1346/CCMN.2006.0540207
Clays and Clay Minerals, Vol. 54, Núm. 2 (2006) , p. 220-229  
2.
18 p, 1.3 MB Kinetics of citrate-induced selenite desorption from montmorillonite as affected by complexation with hydroxyaluminum and hydroxyaluminosilicate ions / Saha, Uttam Kumar (University of Saskatchewan. Department of Soil Science) ; Kozak, L.M. (University of Saskatchewan. Department of Soil Science) ; Huang, P.M. (University of Saskatchewan. Department of Soil Science)
The citrate-induced desorption kinetics of pre-adsorbed Se from montmorillonite (Mt) and its complexes with hydroxyaluminum (HyA-Mt) and hydroxyaluminosilicate (HAS-Mt) were studied. The mole fraction of pre-adsorbed Se released in 24 h from different clays followed the trends of Mt≫HAS-Mt>HyA-Mt with a significant increase with elevated citrate concentration in the desorbing solution. [...]
2007 - 10.1346/CCMN.2007.0550106
Clays and Clay Minerals, Vol. 55, Núm. 1 (2007) , p. 71-88  
3.
9 p, 430.7 KB Water affinity and surface charging at the z-Cut and y-Cut LiNbO3 surfaces : an ambient pressure X-ray photoelectron spectroscopy study / Cordero Edwards, Rohini Kumara (Institut Català de Nanociència i Nanotecnologia) ; Rodríguez Domínguez, Laura (Institut Català de Nanociència i Nanotecnologia) ; Calò, Annalisa (Institut Català de Nanociència i Nanotecnologia) ; Esplandiu Egido, Maria José (Institut Català de Nanociència i Nanotecnologia) ; Pérez-Dieste, V. (ALBA Laboratori de Llum de Sincrotró) ; Escudero, C. (ALBA Laboratori de Llum de Sincrotró) ; Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ; Verdaguer Prats, Albert (Institut Català de Nanociència i Nanotecnologia)
Polarization dependence of water adsorption and desorption on LiNbO₃ surfaces was demonstrated using X-ray photoelectron spectroscopy (XPS) carried out in situ under near-ambient conditions. Positive and negative (0001) faces (z-cut) of the same crystal were compared for the same temperature and pressure conditions. [...]
2016 - 10.1021/acs.jpcc.6b05465
Journal of physical chemistry. C, Vol. 120, issue 42 (Oct. 2016) , p. 24048-24055  
4.
18 p, 1.7 MB Preliminary study of phosphate adsorption onto cerium oxide nanoparticles for use in water purification : nanoparticles synthesis and characterization / Recillas, Sonia (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; García, Ana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química) ; González, Edgar (Institut Català de Nanotecnologia) ; Casals, Eudald (Institut Català de Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Sánchez Ferrer, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Font, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
In this study, the synthesis and characterization of cerium oxide nanoparticles (CeO₂-NPs) and their adsorption potential for removing phosphate from water was evaluated using a multi-factor experimental design to explore the effect of various factors on adsorption. [...]
2012 - 10.2166/wst.2012.185
Water science and technology, Vol. 66, Issue 3 (June 2012) , p. 503-509  
5.
31 p, 932.6 KB Chromium VI adsorption on cerium oxide nanoparticles and morphology changes during the process / Recillas, Sonia (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Colón Jordà, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química) ; Casals, Eudald (Institut Català de Nanotecnologia) ; González, Edgar (Institut Català de Nanotecnologia) ; Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia) ; Sánchez Ferrer, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Font, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
In this study, suspended cerium oxide nanoparticles stabilized with hexamethylenetetramine were used for the removal of dissolved chromium VI in pure water. Several concentrations of adsorbent and adsorbate were tested, trying to cover a large range of possible real conditions. [...]
2010 - 10.1016/j.jhazmat.2010.08.052
Journal of hazardous materials, Vol. 184, Issues 1-3 (Dec. 2010) , p. 425-431  
6.
4 p, 307.5 KB Hydrogen desorption in SiGe films : a diffusion limited process / Vizoso San Segundo, Jesús (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Suñé, Jordi, 1963- (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Martín, Ferran, (Martín Antolín) (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Nafría i Maqueda, Montserrat (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; American Physical Society
A model to explain the hydrogen desorption kinetics in SiGe alloys is presented. This is an extension of a previous desorption model of hydrogen from Si, that considers the presence of three dimer types in the surface in which hydrogen atoms tend to pair before the desorptionreaction. [...]
1997 - 10.1063/1.118429
Applied physics letters, Vol. 70, Issue 24 (June 1997) , p. 3287-3289  
7.
4 p, 427.3 KB Quasifree Mg-H thin films / Baldi Coll, Antoni. (Vrije Universiteit Amsterdam) ; Palmisano, V. (Vrije Universiteit Amsterdam) ; González Silveira, Marta (Universitat Autònoma de Barcelona. Departament de Física) ; Pivak, Y. (Vrije Universiteit Amsterdam) ; Slaman, M. (Vrije Universiteit Amsterdam) ; Schreuders, H. (Vrije Universiteit Amsterdam) ; Dam, B. (Delft University of Technology. DelftChemTech) ; Griessen, R. (Vrije Universiteit Amsterdam) ; American Physical Society
The thermodynamics of hydrogen absorption in Pd-capped Mgfilms are strongly dependent on the magnesium thickness. In the present work, we suppress such dependency by inserting a thin Ti layer between Mg and Pd. [...]
2009 - 10.1063/1.3210791
Applied physics letters, Vol. 95, Issue 7 (August 2009) , p. 071903/1-071903/3  

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