TY - JOUR
T1 - A promising process to modify cellulose nanofibers for carbon dioxide (CO2) adsorption
AU - Sepahvand, Sima
AU - Jonoobi, Mehdi
AU - Ashori, Alireza
AU - Gauvin, Florent
AU - Brouwers, H.J.H.
AU - Oksman, Kristiina
AU - Yu, Qingliang
PY - 2020/2/15
Y1 - 2020/2/15
N2 - 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 HCO3 −,NH3 + and ester bonding NCOO− were visible on the spectra.
AB - 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 HCO3 −,NH3 + and ester bonding NCOO− were visible on the spectra.
KW - Aerogels
KW - Cellulose nanofiber
KW - Chemical modification
KW - CO adsorption
UR - http://www.scopus.com/inward/record.url?scp=85075451925&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2019.115571
DO - 10.1016/j.carbpol.2019.115571
M3 - Article
C2 - 31887944
AN - SCOPUS:85075451925
VL - 230
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
SN - 0144-8617
M1 - 115571
ER -