Table 1 Calculated parameters for the pseudo-second-order kinetic model for Cs+, Sr2+ and K+ ions fixation by phillipsite

From: Synthesis of phillipsite from perlite utilizing mother waters from wet gel EMT preparation and study of the obtained zeolitic material as ion exchanger

Ion Concentration, mg/L Second-order kinetic model parameters qe,exp, [mg/g]
R2 k2 [g/(meq.min)] qe,calc [meq/g] qe,exp [meq/g] h [meq/(g.min)]
Cs+ 609 0.99 0.0316 0.922 0.861 ± 0.041 0.0269 114.43
Sr2+ 582 0.99 0.0037 1.902 1.764 ± 0.072 0.0136 77.28
K+ 353 0.99 0.0063 1.091 1.040 ± 0.092 0.0076 42.67