One-step synthesis of Magnetic chitosan polymer composite films

FEDERICO CESANO; GAIA FENOGLIO; LUCIANO CARLOS; ROBERTO NISTICO

APPLIED SURFACE SCIENCE

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2015 vol. 345 p. 175 - 181

0169-4332

In this study, a magnetic iron oxide?chitosan composite film is synthesized by one-step methodand thoroughly investigated in order to better understand its inorganic/organic properties. A deepphysico-chemical characterization of the magnetic films has been performed. In particular, the materialcomposition was evaluated by means of XRD and ATR-FTIR spectroscopy, whereas the thermal stabil-ity and the subsequent inorganic phase transitions involving iron oxide species were followed by TGAanalyses carried out at different experimental conditions (i.e. inert and oxidative atmosphere). The mag-netic properties of the films were tested at the bulk and at the surface level, performing respectivelymagnetization hysteresis curve and magnetic force microscopy (MFM) surface mapping. Results indicatethat the synthesized material can be prepared through a very simple synthetic procedure and suggeststhat it can be successfully applied for instance to environmental applications, such as the adsorption ofcontaminants from solid and liquid media thanks to its pronounced magnetic properties, which favourits recover.