Abstract
A low-cost biomass carbon aerogel with a hierarchical pore structure (BCA-H) was prepared from straw using unidirectional freeze casting and potassium hydroxide (KOH) activation. The morphology, microstructure, and properties of the material were investigated. The hierarchical pore structure is a three-dimensional structure consisting of micropores, mesopores, and macropores. The material exhibits an ultra-low density (0.038 g/cm3), as well as a high porosity (98.2 %) and specific surface area (1531 m2/g). After hydrophobic modification, the contact angle of the sample with water was 169.5°, and its adsorption capacities for acetone and rapeseed oil were 29 and 33 times its mass, respectively. The material has promising prospects in adsorption technology, such as for organic solvent adsorption and oil–water separation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
