Textile microfibers valorization by catalytic hydrothermal carbonization toward high-tech carbonaceous materials.

Autor:	Parrilla-Lahoz S; School of Chemistry and Chemical Engineering, University of Surrey, GU2 7XH Guildford, UK.; Inorganic Chemistry Department & Materials Science Institute, University of Seville-CSIC, Avda. Américo Vespucio 49, 41092 Sevilla, Spain., Zambrano MC; Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, NC 27695-8005, USA., Pawlak JJ; Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, NC 27695-8005, USA., Venditti RA; Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, NC 27695-8005, USA., Ramirez Reina T; School of Chemistry and Chemical Engineering, University of Surrey, GU2 7XH Guildford, UK.; Inorganic Chemistry Department & Materials Science Institute, University of Seville-CSIC, Avda. Américo Vespucio 49, 41092 Sevilla, Spain., Odriozola JA; Inorganic Chemistry Department & Materials Science Institute, University of Seville-CSIC, Avda. Américo Vespucio 49, 41092 Sevilla, Spain., Duyar MS; School of Chemistry and Chemical Engineering, University of Surrey, GU2 7XH Guildford, UK.
Jazyk:	angličtina
Zdroj:	IScience [iScience] 2024 Nov 19; Vol. 27 (12), pp. 111427. Date of Electronic Publication: 2024 Nov 19 (Print Publication: 2024).
DOI:	10.1016/j.isci.2024.111427
Abstrakt:	Microplastics fibers shed from washing synthetic textiles are released directly into the waters and make up 35% of primary microplastics discharged to the aquatic environment. While filtration devices and regulations are in development, safe disposal methods remain absent. Herein, we investigate catalytic hydrothermal carbonization (HTC) as a means of integrating this waste (0.28 million tons of microfibers per year) into the circular economy by catalytic upcycling to carbon nanomaterials. Herein, we show that cotton and polyester can be converted to filamentous solid carbon nanostructures using a Fe-Ni catalyst during HTC. Results revealed the conversion of microfibers into amorphous and graphitic carbon structures, including carbon nanotubes from a cotton/polyethylene terephthalate (PET) mixture. HTC at 200°C and 22 bar pressure produced graphitic carbon in all samples, demonstrating that mixed microfiber wastes can be valorized to provide potentially valuable carbon structures by modifying reaction parameters and catalyst formulation. Competing Interests: The authors assert that they do not have any conflicting interests. S.P.-L., M.S.D., T.R.R., J.J.P., and R.A.V. are identified as inventors on an international patent application (Patent number: PCT/GB2023/051538) associated with certain aspects of the research discussed in this publication. The patent application is owned by the University of Surrey and North Carolina State University. The authors state that the presence of this patent does not impact the analysis or communication of the study results in this work. (© 2024 The Author(s).)
Databáze:	MEDLINE
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