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Nanogreen is the new future: the conversion of lignin and lignocellulosic wastes into nanomaterials

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Abstract

The lignocellulose biorefinery industry has assumed an important role within the current scenario. Lignin is an abundant and available biopolymer and one of the compounds present in the lignocellulosic waste. Therefore, processing lignin into new materials and nanomaterials, such as nanolignin, has attracted the attention of the scientific community. Lignin nanoparticles are materials that have excellent properties, such as biodegradability and non-toxicity, and have great potential as chelating agents, antimicrobials agents, UV protectors, nanofillers, adsorbents, catalysts, supercapacitors, emulsion stabilizers, delivered systems, drugs, and gene carriers. This review article covers the emergent scenario of nanolignin and the main aspects of scientific interest, such as the conversion and functionalization of lignin, the valorization of lignocellulose waste, and nanoparticle synthesis. A techno-economic evaluation of the biorefinery model of the nanolignin synthesis is presented based on the simulation of the process on the experimental and commercial databases available and reported by some authors. Finally, the techno-economic assessment is complemented by the life cycle assessment of various nanolignin synthesis pathways reported to evaluate the environmental implications and support this emergent technology development.

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Adapted from Calvo-Flores and Dobado (2010), Laurichesse and Averous (2014), and Patermann and Altstadt (2015)

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Funding

This work was supported by the Brazilian National Research Council (CNPq, grants #406193/2018–5 and 139202/2019–6), the Research Supporting Foundation of the State of São Paulo (FAPESP, grant #2019/11353–8 and #2020/16004–9), and the Coordination for the Improvement of Higher Education Personnel (CAPES) (Financial Code 001).

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Wardleison Martins Moreira contributed to the conceptualization, formal analysis, investigation, and writing of the original draft. Paula Valéria Viotti and Débora Federici dos Santos contributed to the formal analysis, investigation, and writing of the original draft. Resources, writing, review and editing, and supervision were performed by Marcelino Luiz Gimenes and Melissa Gurgel Adeodato Vieira. All authors read and approved the final manuscript.

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Correspondence to Wardleison Martins Moreira.

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Moreira, W.M., Moreira, P.V.V., dos Santos, D.F. et al. Nanogreen is the new future: the conversion of lignin and lignocellulosic wastes into nanomaterials. Environ Sci Pollut Res 30, 19564–19591 (2023). https://doi.org/10.1007/s11356-023-25150-1

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  • DOI: https://doi.org/10.1007/s11356-023-25150-1

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