Synthesis of MoS2/Fe3O4/aminosilane/glycidyl methacrylate/melamine dendrimer grafted polystyrene/poly(N-vinylcaprolactam) nanocomposite for adsorption and controlled release of sertraline from aqueous solutions

摘要

A new MoS2/Fe3O4 dendrimer grafted polystyrene (PST)/poly(N-vinylcaprolactam) (PNVCL) was prepared as a temperature-sensitive nanocomposite for adsorption and controlled release of sertraline. The maximum adsorption capacity of nanocomposite for sertraline was about 5.24 mgg(-1) under optimum pH of 8, equilibrium time of 30 min and adsorbent dosage of 5 gL(-1). The kinetic of sertraline sorption follow the pseudo-second-order kinetic model, and the corresponding isotherm was well fitted with the Redlich-Peterson isotherm model. The highest release of sertraline was obtained at 50 degrees C during 24 h. The non-Fickian diffusion of the sertraline release from nanocomposite was achieved at 37 and 50 degrees C.