Bipolymers such as cellulose and chitin are promising for several applications . Chitosan (CTS, with a chemical name of (1,4)-2-amino-2-deoxy-β-d-glucan) is a natural and abundant biopolymer . It is the deacetylated form of chitin that can be isolated from crustacean shells. It exhibits several properties such as high biocompatibility, biodegradability, and mucoadhesive properties. Chitosan biopolymers can be used as effective templates, supports, or substrates to synthesize several nanomaterials, including photocatalysts , magnetic nanoparticles , molybdenum vanadate , metal-organic frameworks (MOFs) , and graphene oxide (CTS) . Chitosan-based materials enable several applications, e.g., separation, photocatalysis, biotechnology, and biosensing applications .