摘要：In this study, adsorption of Zn(II) ions from aqueous solutions was investigated using polyamine polyurea polymer modified with pyromellitic dianhydride (PMPPP). The parameters on the adsorption studies such as pH, contact time, PMPPP dose and initial concentration of Zn(II) were studied. The experimental data analyzed using Langmuir and Freundlich isotherm models were showed a higher compliance with the Langmuir isotherm representing the monolayer adsorption. Maximum adsorption capacity of PMPPP for Zn (II) ions was calculated to be 119.1 mg g-1 according to Langmuir isotherm. Adsorption kinetics of Zn(II) ions on PMPPP were found to consistent with second order model. Thermodynamic calculations showed that the process is exothermic and occurs spontaneously.
其他摘要：Bu çalışmada sulu çözeltilerden Zn(II) iyonlarının piromellitik dianhidrit ile modifiye edilmiş poliamin- poliüre polimeri (PMPPP) üzerine adsorpsiyonu incelenmiştir. Adsorpsiyon çalışmasına etkisi incelenen parametreler; pH, temas süresi, PMPPP dozu, Zn(
