期刊
COMPOSITES COMMUNICATIONS
卷 28, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2021.100961
关键词
Diluted CO2 capture; Carbon-based composite materials; Potassium acetate; N/O-rich
资金
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX20_1777]
An efficient method was developed to prepare activated N/O-rich multilayer ultramicropores carbon composite materials for effectively capturing waste and diluted CO2. The adsorptive capacity and retention time of the porous carbon material suggest its potential for CO2/N2 separation in the industrial field.
The effective capture of waste and diluted CO2 by porous carbon materials is extremely challenging. Herein, a facile one-step strategy was developed to prepare activated N/O-rich multilayer ultramicropores carbon composite materials for capturing waste and diluted CO2 effectively by directly carbonizing urea and D-glucose with a novel non-corrosive and non-toxic chemical activator of potassium acetate. Especially, the diluted CO2 adsorptive capacity of the porous carbon material reached 1.38 mmol/g and 0.57 mmol/g at 0.15 bar and 0.05 bar (0 degrees C) respectively. Meanwhile, the retention time up to 85 min in the diluted CO2 breakthrough experiment further confirms the outstanding adsorptive property of the materials, implying their potential for CO2/N-2 separation in the industrial field.
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