Mossbauer study of clinoptilolite

摘要

Mossbauer effect was used to study Fe-clinoptilolite (Fe-Cp) and heated Fe-Cp as well as the samples which were generated from Fe-Cp heated at 500 deg. C and adsorbed Na_2S and Na_2CO_3. The assignments were given for the Mossbauer spectra of all samples studied here. The results show that all irons were converted to ferric ions after heated at 300-650 deg. C, and the basic structure of Fe-Cp remained the same. When heated temperatures are above 650 deg. C, the structure of Fe-Cp was completely destroyed.