CO₂ Adsorption Behaviors of Biomass-Based Activated Carbons Prepared by a Microwave/Steam Activation Technique for Molecular Sieve.

ABSTRACT: In this study, the activated carbon was prepared with superior CO₂ selective adsorption properties using walnut shells, a biomass waste, as a precursor. The activations were conducted at various times using the microwave heating technique in a steam atmosphere. The surface morphology and chemical composition of activated carbon were analyzed using a scanning electron microscope and energy-dispersive X-ray spectroscopy. The textural properties were investigated using the N₂/77K isothermal method, and the structural characteristics were examined using X-ray diffraction analysis. The CO₂ and H₂ adsorption properties of activated carbon were analyzed using a thermogravimetric analyzer and a high-pressure isothermal adsorption apparatus, respectively,

SUBMITTER: Lee JY 

PROVIDER: S-EPMC10456295 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature