Characterization of Zeolitic Mineral for Developing Nanostructured Materials

  • G. Rodríguez-Fuentes Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Cuba
  • I. Rodríguez-Iznaga Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Cuba

Abstract

The study of representative samples from two natural clinoptilolite deposits has shown that the morphology of the crystal, produces a significant influence on the ion exchange process of the zeolite. The determined kinetic parameters of the ammonium exchange at room temperature and 100º C are different. The activation energy of the exchange process is 14.1 KJ mol-1 when the ammonium was exchanged in the sample representative of the mineral from a drill hole (0 - 30 meters), while the energy of the same process is about 3 KJ.mol-1 for a sample representative of the weathered horizon (0 - 7 meters). The kinetic parameters of the exchange of Ni2+ and Co2+ are different for the samples from both deposits even when the samples were extracted from similar section, as a consequence of the crystal morphology.

Published
Jun 15, 2009
How to Cite
RODRÍGUEZ-FUENTES, G.; RODRÍGUEZ-IZNAGA, I.. Characterization of Zeolitic Mineral for Developing Nanostructured Materials. Revista Cubana de Física, [S.l.], v. 26, n. 1, p. 55-60, june 2009. ISSN 2224-7939. Available at: <https://revistacubanadefisica.org/index.php/rcf/article/view/RCF_26-1_55_2009>. Date accessed: 28 mar. 2024.
Section
Original Articles