Molecularly imprinted membrane with selective affinity to naringin

EDITH MARÍN; MERCEDEZ MÉNDEZ; GUSTAVO CÉLIZ

Buenos Aires

Conferencia; VI International Conference on Science and Technology of Composite Materials (COMAT); 2015

ITPN-UBA, INTI, INTECIN-UBA, ECNO, FACULTAD DE INGENIERIA-UBA

Ultrafiltration membranes molecularly imprinted with naringin were prepared with the aim that this flavonoid is recovered from a simulated effluent. The base polymer used was polyethersulfone (PES) in concentrations of 15 % and 20 % w/w. Polyethylene glycol (PEG) were added since it is a widely used compound in the synthesis of ultrafiltration membranes with porogenic properties. The naringin, was used in two concentrations of 2 % and 4 % w/w. The membrane preparation was made by the phase inversion method. The characterization of the membranes with and without naringin was done using contact angle to determine the hydrophilicity of surface, images of scanning electron microscopy and atomic force microscopy in order to observe morphological changes. Attenuated total reflectance spectrums, were analyzed to understand the changes on the chemical composition of the surface from the modified membrane. The pure water permeability and tests of retention of naringin were measured showing a promising performance.