TY - JOUR
T1 - Hydrophobic and oleophilic carbon fiber aerogel for oil/water separation
AU - Aytekin, Merve
AU - Haykiri-Acma, Hanzade
AU - Yaman, Serdar
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023.
PY - 2024/8
Y1 - 2024/8
N2 - Hydrophobic and oleophilic carbon fiber aerogel (CFA) was produced from lignocellulosic biomass such as black locust, hybrid polar, and chestnut shell. The biomasses were treated by some chemicals to prepare hydrophilic cellulose aerogel (CA). Successive freeze-shaping in liquid nitrogen (− 196 °C) and freeze-drying at − 53 °C and 0.113 mbar formed the hydrophilic cellulose aerogel (CA). Then, carbonization of CA at 900 °C yielded ultralight (0.011 g/cm3) and mesopore-rich (38 nm) hydrophobic/oleophilic CFA with moderate surface area (110–533 m2/g) and pore volumes (0.25–0.73 cm3/g). Water contact angle, surface functionalities, cellulose crystallinity, morphology, surface area, and thermal stability of CFA were characterized. Water contact angle of CFA reached 141° that indicates highly hydrophobic nature. Although no chemical activation was applied, the oil sorption capacities of 76.0, 81.6, and 81.8 g/g were achieved for diesel oil, crude oil, and sunflower oil, respectively.
AB - Hydrophobic and oleophilic carbon fiber aerogel (CFA) was produced from lignocellulosic biomass such as black locust, hybrid polar, and chestnut shell. The biomasses were treated by some chemicals to prepare hydrophilic cellulose aerogel (CA). Successive freeze-shaping in liquid nitrogen (− 196 °C) and freeze-drying at − 53 °C and 0.113 mbar formed the hydrophilic cellulose aerogel (CA). Then, carbonization of CA at 900 °C yielded ultralight (0.011 g/cm3) and mesopore-rich (38 nm) hydrophobic/oleophilic CFA with moderate surface area (110–533 m2/g) and pore volumes (0.25–0.73 cm3/g). Water contact angle, surface functionalities, cellulose crystallinity, morphology, surface area, and thermal stability of CFA were characterized. Water contact angle of CFA reached 141° that indicates highly hydrophobic nature. Although no chemical activation was applied, the oil sorption capacities of 76.0, 81.6, and 81.8 g/g were achieved for diesel oil, crude oil, and sunflower oil, respectively.
KW - Biomass
KW - Carbon fiber aerogel
KW - Hydrophobic
KW - Oil sorption
KW - Oleophilic
UR - http://www.scopus.com/inward/record.url?scp=85149029618&partnerID=8YFLogxK
U2 - 10.1007/s13399-023-03995-3
DO - 10.1007/s13399-023-03995-3
M3 - Article
AN - SCOPUS:85149029618
SN - 2190-6815
VL - 14
SP - 19323
EP - 19333
JO - Biomass Conversion and Biorefinery
JF - Biomass Conversion and Biorefinery
IS - 16
ER -