Original scientific paper

Adsorption of Paraoxon on High-silica Pentasils with Different Alkali Cations

Ankica Čižmek ; MOD, Croatian Military Academy, LABKZ, Ilica 256 b, 10000 Zagreb, Croatia
Zlatko Ivančić ; Faculty of Chemical Engineering and Technology, University of Zagreb, Department of Fire Fighting, Marulićev trg 20, 10000 Zagreb, Croatia

Abstract

Adsorption of paraoxon (diethyl-p-nitrophenyl phosphate) on high-silica pentasils with different alkali cations (Na+, K+, NH4+) was investigated using the method of measuring the acceleration of the rate of oxidation of benzidine, and it is discussed with regard to the influence of alkali metal ions present in the system during zeolite synthesis. The rate of adsorption of paraoxon on Na-ZSM-5 was investigated at different temperatures (20, 30, 37 and 45 °C).

Keywords

adsorption; paraoxon; zeolites; alkali cations

Hrčak ID:

127503

URI

https://hrcak.srce.hr/127503

Publication date:

4.2.2002.

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