화학공학소재연구정보센터
Separation Science and Technology, Vol.54, No.9, 1453-1468, 2019
Synthesis and application of polymer-grafted nanocellulose/graphene oxide nano composite for the selective recovery of radionuclides from aqueous media
A series of batch adsorption experiments under optimized conditions were performed and also to evaluate the reliability and feasibility of prepared adsorbent, carboxylate functionalized ethylene glycol dimethacrylate (EGDMA) crosslinked nanocellulose/graphene oxide polymer composite (EGDMA-g-nCell/GO) for Th(IV) recovery from aqueous media. The material was well characterized by using FTIR, XRD, XPS, SEM-EDS, TG-DTA and zeta potential analysis. The equilibrium adsorption capacity (Q(0)) among the various models was 141.21 mg/g at 30 degrees C and was well correlated with Langmuir isotherm model with reduced chi(2) and R-2 values. The spent adsorbent was undergone four cycles of regeneration process without any significant loss in adsorption capacity using 0.1 M HNO3 as desorbing agent, with up to 98.0 % recovery.