期刊
JOURNAL OF CO2 UTILIZATION
卷 27, 期 -, 页码 204-216出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2018.07.019
关键词
Mangosteen peel; Three dimensional; Interconnected porous structure; CO2 capture; Supercapacitors
资金
- National Natural Science Foundation of China [21471016, 21271023, 21601014]
- 111 Project [B07012]
Business costs, environmental and energy concerns have increased interest in biomass materials for the production of porous carbon materials, especially as solid-state adsorbents for CO2 capture or as electrode materials for supercapacitors. We put forward an efficient and scalable approach to convert mangosteen peel (MP) waste into three-dimensional microporous carbon frameworks (3D-MP-CFW) for effective CO2 capture and supercapacitors. The MP waste is first subjected to a controllable hydrothermal treatment in alkaline solution and then a carbonization process. The resultant optimal carbon sample possesses a high surface area up to 1270 m(2)g(-1) and abundant micropores with fine micropore sizes below 1 nm. The typical sample has a well-tailored open 3D macroporous interconnected network structure, exhibiting an outstanding CO2 capture recyclability and high CO2 capture capacities of 6.93 and 4.77 mmol g(-1) at 0 degrees C and 25 degrees C (1 bar), respectively. Simultaneously, benefiting from its high surface area and 3D interconnected porous structure, this optimal sample also exhibits a good supercapacitance performance with the specific capacitance of 240 F g(-1) (in 6 M KOH, at 1 A g(-1)) in a three-electrode system. Our simple preparation method presents an efficient way to make promising carbon materials for high-performance CO2 capture and supercapacitors.
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