Fecha de publicación: 01/01/2025 Fuente: Agri-Waste and Microbes for Production of Sustainable Nanomaterials The potential of reusing low-value biomassBiomass waste for the processing of renewable materials to fabricate high-value products is remarkable. In recent decades, a major impact has been witnessed in the economy and environment based on the conversion of biomassBiomass waste into valuable carbon nanomaterialsNanomaterials. Various chemical methodsChemical methods have been developed to synthesize high-value carbon nanomaterialsNanomaterials; however, the use of green technologyGreen technology for the synthesis of carbon nanomaterialsNanomaterials is the most common nowadays because of the abundant availability of the starting precursors, their non-toxicity, low fabrication cost, ease of modification, and eco-friendly nature. The large-scale production of rice is associated with some valuable by-products (rice husk, rice straw, and rice bran) attributed to the presence of important components like lignin, cellulose, and hemicellulose. Carbon nanostructures made from rice wasteRice waste have unique physicochemical properties like high surface area, porosity, and unique functionalities that have excellent potential to be applied to solve a wide range of environmental issues. The primary goal of this chapter is to draw attention to the recent developments in the synthesis of environmentally friendly methods of producing carbon nanomaterialsNanomaterials, such as graphene, carbon nanotubes, and carbon dotsCarbon dots, from rice biomassBiomass waste, their complete characterizationCharacterization, and their applications to solve the environment-related problems.