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X-ray photoelectron spectroscopic studies of a iodine doped natural zeolite of clinoptilolite type and its thermally degradated products

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Abstract

An iodine containing natural zeolitic material of the clinoptilolite type heated to different temperatures was investigated by means of X-ray photoelectron spectroscopy and thermal analysis methods. At room temperature the iodine was found to be present, depending on the preparation conditions, in the form of iodide or iodide combined with elementary iodine. After heating to 200°C, only iodide was observed which persists in the product in a small amount also after heating to 900°C.

Zusammenfassung

Ein jodhaltiges natürliches Zeolith-Material vom Typ Klinoptilolit wurde nach Aufheizen auf verschiedene Temperaturen mittels Röntgen-Photoelektronenspektroskopie und thermoanalytischen Methoden untersucht. Bei Raumtemperatur ist Jod—in Abhängigkeit von der Herstellungsmethode—in Form von Jodid oder in Form von Jodid und elementarem Jod zugegen. Nach Erhitzen auf 200°C wurde nur noch Jodid beobachtet, was nach dem Erhitzen auf 900°C auch im Produkt in geringen Mengen weiter vorhanden bleibt.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, Faculty of Sciences, P. J. Šafarik's University, Moyzesova 11, 04154, Košice, Slovak Republic

    M. Rehaková & A. Sopkova

  2. ESCA Centre, J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 18223, Prague, Czech Republic

    Z. Bastl

  3. Istituto Chimico, Facolta di Ingeneria, Università di Catania, Viale A. Doria 6, 95125, Catania, Italy

    P. Finocchiaro

Authors
  1. M. Rehaková
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  2. Z. Bastl
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  3. P. Finocchiaro
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  4. A. Sopkova
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Rehaková, M., Bastl, Z., Finocchiaro, P. et al. X-ray photoelectron spectroscopic studies of a iodine doped natural zeolite of clinoptilolite type and its thermally degradated products. Journal of Thermal Analysis 45, 511–518 (1995). https://doi.org/10.1007/BF02548783

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  • DOI: https://doi.org/10.1007/BF02548783

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