A promising process to modify cellulose nanofibers for carbon dioxide (CO2) adsorption

Document identifier: oai:DiVA.org:ltu-76954
Access full text here:10.1016/j.carbpol.2019.115571
Keyword: Engineering and Technology, Industrial Biotechnology, Bio Materials, Teknik och teknologier, Industriell bioteknik, Biomaterial, CO2 adsorption, Cellulose nanofiber, Aerogels, Chemical modification, Trä och bionanokompositer, Wood and Bionanocomposites
Publication year: 2020
Relevant Sustainable Development Goals (SDGs):
SDG 9 Industry, innovation and infrastructure
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

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.

Authors

Sima Sepahvand

Department of Wood and Paper Science and Technology, Natural Resources Faculty, University of Tehran, Karaj, Iran
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Mehdi Jonoobi

Department of Wood and Paper Science and Technology, Natural Resources Faculty, University of Tehran, Karaj, Iran
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Alireza Ashori

Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
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Florent Gauvin

Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands
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H.J.H Brouwers

Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands
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Kristiina Oksman

Luleå tekniska universitet; Materialvetenskap
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Qingliang Yu

Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands
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