Synthesis of Bio-Nanomagnetite Using Poly(butylene adipate) and Poly(butylene adipate-co-terephthalate)

Nano-scale magnetite presents fascinating opportunities in various fields. For example, they are used for removing pollution from water bodies as they can bind electrochemically to suspended particles so that they are settled as sludge. Applying biodegradability property to these nanomagnetites improves their usage. In this study, bio-nanomagnetite is synthesized using co-precipitation reaction in which nanoparticles are used as a base for mounting two biodegradable polymers, i.e. poly(butylene adipate) (PBA) and poly(butylene adipate-co-terephthalate) (PBAT). Proton nuclear magnetic resonance (1HNMR) and carbon nuclear magnetic resonance (13CNMR) spectra of synthesized polymers are presented. Fourier transform infrared spectroscopy (FTIR) of nano-particles is also presented. Biodegradation tests of bio-polymers including degradation under UV (ultraviolet) rays and in phosphate buffer show they can be degraded in biological conditions. Curves showing the progression of degradation are also presented. Relative size of the particles based on Debye–Scherrer relation is also obtained through X-ray powder diffraction (XRD) test and it is 9.12 nm.