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Cellulose Nanocrystals from Postconsumer Cotton and Blended Fabrics: A Study on Their Properties, Chemical Composition, and Process Efficiency
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).ORCID iD: 0000-0003-3677-0085
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).ORCID iD: 0000-0002-1598-7093
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).ORCID iD: 0000-0002-7156-559x
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Number of Authors: 62022 (English)In: ACS Sustainable Chemistry and Engineering, E-ISSN 2168-0485, Vol. 10, no 11, p. 3787-3798Article in journal (Refereed) Published
Abstract [en]

From manufacturing to disposal, the textile industry faces multiple challenges to achieve sustainability and reduce its environmental impact. This work investigates the properties and composition of cellulose nanocrystals (CNCs) extracted from clothing waste made of cotton fibers. We isolated CNCs from cotton, polyester/cotton, and acrylic/cotton waste fabrics through acid hydrolysis with sulfuric acid. A yield of 51-62 wt S4, ( co tt on basis) was obtained, and nearly all the polyester and acrylic libers contained in the initial fabrics were recovered in a convenient shape that could allow easier recycling. CNCs extracted from the selected fabrics showed high purity, similar structural, physical, and chemical characteristics, and their properties were comparable to those extracted from virgin sources, although their surface chemistry and elemental composition slightly differed. The chemical components in the waste fabrics and the extracted CNCs were evaluated through a nontarget chromatographic-mass spectrometric screening strategy. Both the recycled textiles and the CNCs contained hundreds of compounds common in postconsumer textiles, including some with health and environmental concerns. However, our initial findings show that their concentrations in the CNCs are negligible. Our results provide insights into the challenges associated with the use of cotton waste textiles for the extraction of cellulose nanoparticles, and into the potential applications of the extracted nanomaterials.

Place, publisher, year, edition, pages
2022. Vol. 10, no 11, p. 3787-3798
Keywords [en]
textile waste, acid hydrolysis, cellulose nanocrystals, nontarget screening, polyester/cotton, acrylic/cotton, Green & Sustainable Science & Technology
National Category
Chemical Sciences Chemical Engineering
Identifiers
URN: urn:nbn:se:su:diva-204544DOI: 10.1021/acssuschemeng.2c00797ISI: 000778745000039Scopus ID: 2-s2.0-85126764053OAI: oai:DiVA.org:su-204544DiVA, id: diva2:1657399
Available from: 2022-05-10 Created: 2022-05-10 Last updated: 2024-06-12Bibliographically approved
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Ruiz-Caldas, Maria-XimenaCarlsson, JosefineSadiktsis, IoannisJaworski, AleksanderNilsson, UlrikaMathew, Aji P.

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Ruiz-Caldas, Maria-XimenaCarlsson, JosefineSadiktsis, IoannisJaworski, AleksanderNilsson, UlrikaMathew, Aji P.
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