Design and synthesis of Ag NPs/Cellulose nanofiber-starch nano-bio composites for packaging applications

Abstract

Addressing problems due to conventional plastics requires a comprehensive approach involving waste reduction, improved waste management practices, and the development of sustainable alternatives to conventional plastics. In this study, a system was designed that can decorate cellulose nanofiber with silver nanoparticles (AgNP) and then used as a reinforcing agent in thermoplastic starch matrix. The composites were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM) and transport properties. The morphology and chemical modification of cellulose nanomaterials with silver nanoparticles were confirmed by FESEM, TEM and FTIR and the results indicated proper adhesion of silver nanoparticles in cellulose nanofiber. The addition of AgNP decorated cellulose nanofiber on thermoplastic starch matrix could effectively reduce cracks and pores and improves the overall performance of nanocomposite films. The unique properties of starch nanoparticles make them a promising candidate for diverse applications, showcasing their potential as a sustainable and versatile nanomaterial.