Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.heliyon.2019.e01527
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dc.titleChitosan/polyvinyl alcohol nanofibrous membranes: towards green super-adsorbents for toxic gases
dc.contributor.authorSargazi, G.
dc.contributor.authorAfzali, D.
dc.contributor.authorMostafavi, A.
dc.contributor.authorShadman, A.
dc.contributor.authorRezaee, B.
dc.contributor.authorZarrintaj, P.
dc.contributor.authorSaeb, M.R.
dc.contributor.authorRamakrishna, S.
dc.contributor.authorMozafari, M.
dc.date.accessioned2021-12-09T03:05:23Z
dc.date.available2021-12-09T03:05:23Z
dc.date.issued2019
dc.identifier.citationSargazi, G., Afzali, D., Mostafavi, A., Shadman, A., Rezaee, B., Zarrintaj, P., Saeb, M.R., Ramakrishna, S., Mozafari, M. (2019). Chitosan/polyvinyl alcohol nanofibrous membranes: towards green super-adsorbents for toxic gases. Heliyon 5 (4) : e01527. ScholarBank@NUS Repository. https://doi.org/10.1016/j.heliyon.2019.e01527
dc.identifier.issn2405-8440
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/209988
dc.description.abstractRemoval of hazardous gases from the atmosphere has become a big challenge for scientists and engineers alike. Eco-friendly nature of biopolymers has given a new dimension to the debate within the environmental science area but attempts mainly failed to cleanse the air stream of toxic gases as a consequence of design imperfections. In this work, green electrospun nanofibrous membranes based on chitosan (Cs)/polyvinyl alcohol (PVA) composite with a very high carbon monoxide adsorption capacity (much higher than the values one may expect from activated carbon and zeolite adsorbents, and also higher than that of the metal-organic framework) are developed. 2 k?1 factorial design, response surface and desirability function analyses are merged to optimize the electrospinning parameters for functional-based carbon monoxide elimination. The best Cs/PVA adsorbent obtained through multi-objective optimization has a very high desirability value level of 0.953. Optimized electrospinning parameters are: Voltage = 17 kV, spinning distance = 13 cm, flow rate = 0.2 mL/h, and PVA concentration = 6 wt.%; and optimized properties are: maximum thermal stability = 329 °C, minimum fiber diameter = 9.8 nm, and maximum surface area = 2204 m 2 /g. This work opens a new era for taking the next steps towards the design and optimization of green super-adsorbents for gaseous contaminations. © 2019
dc.publisherElsevier Ltd
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceScopus OA2019
dc.subjectMaterials science
dc.typeArticle
dc.contributor.departmentDEPT OF MECHANICAL ENGINEERING
dc.description.doi10.1016/j.heliyon.2019.e01527
dc.description.sourcetitleHeliyon
dc.description.volume5
dc.description.issue4
dc.description.pagee01527
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