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Green Nanomaterials for Environmental Remediation

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Handbook of Green and Sustainable Nanotechnology

Abstract

The green chemistry together with nanotechnology gave rise to the green nanomaterials, which use clean, safe, cost-effective, and environmental friendly synthetic strategies to prepare nanomaterials. Many efforts have been expended to synthesize nanomaterials from renewable and locally available sources to decrease the amount of harmful chemicals, generating biodegradable waste that do not present toxicity to humans and to the environment. In this context, this chapter deals with recent applications of green nanomaterials for eliminating chemical pollutants and biological contaminants from soil, water, and air. Green nanomaterials such as metal and metal oxides nanoparticles, nanoporous carbon, carbon quantum dots, carbon nanofibers, prepared through green protocols, and biopolymer nanoderivatives including chitin, chitosan, and cellulose are used to remove harmful gases, toxic metals, organic dyes, pharmaceuticals, pesticides, and oils. The high surface area and the related reactivity of green nanomaterials enable their use with great efficiency in different processes, including sorption, filtration, stabilization, degradation, demulsification, flocculation, and disinfection. This chapter covers a gap in the current literature concerning recent publications that report the preparation and characterization of new green nanomaterials for air, soil, and water purification. Herein we present and discuss the main applications and related mechanisms involved in the environmental remediation.

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Acknowledgments

We thank the Research Supporting Foundation of the State of São Paulo (FAPESP, proposal n°. 2019/07822-2 and 2019/25228-0), Coordination for the Improvement of Higher Education Personnel (CAPES, Financial code – 001) and to Espaço da Escrita – Coordenadoria Geral da Universidade – UNICAMP – for the language services provided.

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Correspondence to Patrícia Prediger .

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Prediger, P., de Figueiredo Neves, T., Camparotto, N.G., Rodrigues, E.A. (2023). Green Nanomaterials for Environmental Remediation. In: Shanker, U., Hussain, C.M., Rani, M. (eds) Handbook of Green and Sustainable Nanotechnology. Springer, Cham. https://doi.org/10.1007/978-3-031-16101-8_23

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