Investigations of Applicability of Sulfonated-Gma-g-non-woven PE Adsorbent for the Efficient Removal of Uranium from Aqueous Solutions

This work describes the investigation of applicability of Sulfonated Glycidylmethacrylate (GMA) grafted non-woven polyethylene (PE) adsorbent for the efficient removal of uranium from aqueous solutions. The adsorbent film was prepared by the gamma radiation (pre-radiation) technique of GMA grafting onto non-woven PE and the epoxide group of GMA converted to sulfonic acid by sulfonation. The uranium loading capacity of the sorbent was investigated with different parameters contact time, initial uranium concentration, pH and temperature. The kinetics of the monolayer sorption was evaluated by pseudo-first-order and pseudo-second-order equations. The uranium loading capacity depends on temperature. At 25 °C the value of ∆G is − 0.74 kJ mol−1 and at higher temperature it is also negative, indicates that the sorption process is spontaneous and thermodynamically favorable. The experimental data fitted best with the Langmuir isotherm model and the deliberate sorption capacity were 181.82 mg g−1.