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A promising process to modify cellulose nanofibers for carbon dioxide (CO2) adsorption
Department of Wood and Paper Science and Technology, Natural Resources Faculty, University of Tehran, Karaj, Iran.
Department of Wood and Paper Science and Technology, Natural Resources Faculty, University of Tehran, Karaj, Iran.
Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran.
Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands.
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2020 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 230, article id 115571Article in journal (Refereed) Published
Abstract [en]

A novel process of using phthalimide to modify cellulose nanofibers (CNF) for CO2 adsorption was studied. The effectiveness of the modification was confirmed by ATR-IR. Phthalimide incorporation onto CNF was confirmed with the characteristic peaks of NH2, C–N, and ester bonding COO− was observable. The XPS analyses confirmed the presence of N1s peak in Ph-CNF, meaning that the hydroxyl groups reacted with the amino groups (NH2) of phthalimide on the CNF surface. Based on the results, surface modification and addition of phthalimide increased the specific surface area, but also decreased the overall porosity, size of pores and volume of pores. When the temperature, humidity, pressure, and airflow rate increased, the CO2 adsorption significantly increased. The CO2 adsorption of phthalimide-modified CNF was confirmed by ATR-IR spectroscopy as the characteristic peaks of HCO−3,NH+3 and ester bonding NCOO− were visible on the spectra.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 230, article id 115571
Keywords [en]
CO2 adsorption, Cellulose nanofiber, Aerogels, Chemical modification
National Category
Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-76954DOI: 10.1016/j.carbpol.2019.115571ISI: 000504402300008Scopus ID: 2-s2.0-85075451925OAI: oai:DiVA.org:ltu-76954DiVA, id: diva2:1374177
Note

Validerad;2020;Nivå 2;2020-01-13 (johcin)

Available from: 2019-11-29 Created: 2019-11-29 Last updated: 2020-01-13Bibliographically approved

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Oksman, Kristiina

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