Abstract

Mankind generates more and more waste of various origins. Some kinds of waste can be recycled or processed into feed, manure, compost, or heat. However, a lot of waste accumulates, posing an environmental risk with the potential to harm health. Wastes from agriculture and food products fall into the biodegradable waste category, which can be used to obtain "building" materials such as polysaccharides, silica-based materials, etc., and then utilized to produce nanomaterials for a wide variety of applications. This contribution is aimed at reviewing the application of selected agricultural waste materials, including wheat and rice straws, corn and cotton stalks, bamboo biomass, sugarcane bagasse, banana, shaddock and various other peels, rice husk, and coirs for the production of nanocellulose, starch, biochar, and activated carbon, as well as nanoscale silicon/silica that are subsequently used for the fabrication of nanomaterials and nanocomposites for technical and biomedical applications. The most frequently used methods to prepare nanomaterials are briefly characterized as well.

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