Effect of alkali-silica treatments of miscanthus fibres on chemical and micro-morphological modifications
dc.contributor.author | Ntimugura, F | |
dc.contributor.author | Wilson, K | |
dc.contributor.author | Vinai, R | |
dc.contributor.author | Walker, P | |
dc.date.accessioned | 2023-03-06T09:24:54Z | |
dc.date.issued | 2023-02-28 | |
dc.date.updated | 2023-03-05T20:03:41Z | |
dc.description.abstract | Chemical treatments can remove waxes and sugar components from the surface of bio-fibres, increasing their compatibility with mineral binders. This paper investigates the effects of alkali solutions treatments on miscanthus shives. For 8, 24, and 48 h, fibres were immersed in NaOH solutions at 1.5, 2.5, and 5.0% concentrations, with and without a 2.5% sodium silicate solution, having a silica modulus (SiO2/Na2O) of 2.0. SEM and Fourier Transform Infrared Spectroscopy (ATR-FTIR) were used to investigate the effect of different treatments on the microstructure and surface chemistry of miscanthus. The SEM results show that the morphologies of miscanthus fibres were significantly altered in the case of 5.0% NaOH treatment, with a weakening of the inner cell structures in some locations. Furthermore, the ATR-FTIR patterns of raw and treated shives were analysed, suggesting that treating miscanthus with 2.5% NaOH and 2.5% sodium silicate results in the required chemical modifications while retaining the cellular structure of miscanthus fibres. For all treatments, the absorbance was reduced by 31 to 77% at 450 cm−1 and 48–80% at 1035 cm−1. | en_GB |
dc.description.sponsorship | Natural Environment Research Council (NERC) | en_GB |
dc.description.sponsorship | National Productivity Investment Fund (NPIF) | en_GB |
dc.format.extent | 100182- | |
dc.identifier.citation | Vol. 8, article 100182 | en_GB |
dc.identifier.doi | https://doi.org/10.1016/j.clema.2023.100182 | |
dc.identifier.grantnumber | NE/R011621/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/132624 | |
dc.identifier | ORCID: 0000-0002-6205-6929 (Ntimugura, Fabrice) | |
dc.identifier | ORCID: 0000-0001-9506-1591 (Vinai, Raffaele) | |
dc.identifier | ScopusID: 23013084800 (Vinai, Raffaele) | |
dc.language.iso | en | en_GB |
dc.publisher | Elsevier BV | en_GB |
dc.rights | /© 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | en_GB |
dc.subject | Bio-based materials | en_GB |
dc.subject | FTIR technique | en_GB |
dc.subject | Microstructure | en_GB |
dc.subject | Miscanthus | en_GB |
dc.subject | Alkali-treatment | en_GB |
dc.title | Effect of alkali-silica treatments of miscanthus fibres on chemical and micro-morphological modifications | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2023-03-06T09:24:54Z | |
dc.identifier.issn | 2772-3976 | |
exeter.article-number | 100182 | |
dc.description | This is the final version. Available on open access from Elsevier via the DOI in this record | en_GB |
dc.description | Data availability: The research data supporting this publication are available as supplementary information accompanying this publication. | en_GB |
dc.identifier.journal | Cleaner Materials | en_GB |
dc.relation.ispartof | Cleaner Materials, 8 | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2023-02-24 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2023-02-28 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2023-03-06T09:23:13Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2023-03-06T09:24:57Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as /© 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).