Abstract
Nanocellulose derived from biomass is a sustainable, lightweight, and mechanically strong material. Extensive research has been directed towards applying nanocellulose for advanced applications. Nanocellulose-based films are novel and unique for designing functional materials considering their combination of sustainability with new properties. Nanocellulose films can be fabricated through simple strategies and make it easy to access various applications, such as barriers, sensors, energy storage, and so on. In this chapter, we summarized the preparation methods of nanocellulose-based films while focusing on nanocellulose as the film matrix and highlighting some representative applications. Given the sustainability of the nanocellulose and ease of introducing functional groups, we believe that nanocellulose-based films promise great potential for future advanced applications.
