Microplastics (MPs) have been demonstrated to pose significant health risks by investigations, thereby warranting an in-depth exploration of elimination techniques. In this research, TiO 2 nanoparticles were dispersed and fixed onto a chitin sponge matrix utilized the freeze–thaw method, fabricating a novel composite sponge. Analytical techniques such as XPS and SEM revealed that the TiO 2 nanoparticles were securely anchored onto the chitin network via van der Waals forces or hydrogen bonding. Notably, the distribution of TiO 2 on the chitin ...
