PHOTOELECTRON-SPECTROSCOPY - A TOOL IN SORPTION STUDIES

Photoelectron spectroscopy using AlK alpha (h upsilon=1486.3 eV) bag b een applied to study the sorption of Cs+, Sr2+, Ba2+, Zn2+ and Co2+ on magnesite kaolinite, smectite and chlorite. From the observed intensi ties of photoelectron peaks it was determined that in magnesite the so rption affinity of the above ions follow the order: Ba2+ > Co2+ congru ent to Sr2+ congruent to Zn2+ > Cs+. The order for the sorption of Ba2 + and Cs+ are also determined as chlorite > magnesite > smectite > kao linite and smectite > chlorite > kaolinite > magnesite, respectively.