期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 364, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.micromeso.2023.112869
关键词
Mechanochemistry; Porous carbon materials; Cellulose-based materials; Chemical activation; CO 2 adsorption
This study presented a facile and eco-friendly mechanochemical treatment of cellulose-based materials, followed by carbonization and mild activation, to obtain highly porous carbons. The chemically activated carbon showed a high CO2 adsorption capacity due to the large volume of ultramicropores. The method can be used for preparing carbon materials with high surface areas and enhanced porosity.
A facile and eco-friendly mechanochemical treatment of cellulose-based materials, followed by carbonization and mild activation, was employed to obtain highly porous carbons. Potassium citrate (C6H5K3O7) was used as a mild chemical activator and an endotemplate. To prevent any potential alteration of the pore characteristics of the resulting carbons, a simple washing with DI water was performed. As a result, the chemically activated carbon with a large volume of ultramicropores (0.37 cm3/g) showed a high CO2 adsorption capacity of 4.2 mmol/g at 25 degrees C and a pressure of 1 bar. This paper presents a mechanochemical processing of cellulose-based materials, which can be utilized for advancing the preparation of carbon materials with high surface areas and enhanced porosity.
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