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Fabricating carbon-based electrode materials via uptake of amino nano-polystyrene into Pistia stratiotes roots for enhancing supercapacitance.
- Source :
-
Green Chemistry . 11/21/2023, Vol. 25 Issue 22, p9351-9362. 12p. - Publication Year :
- 2023
-
Abstract
- Nano-polystyrene, as a new type of organic pollutant, has attracted extensive attention. Nano-sized particles in the water environment could be easily absorbed by hydrophytes and accumulate in root and shoot organs, while porous carbon obtained by high-temperature carbonization is employed as the anode material of supercapacitors, which exhibits good electrochemical performance. In this work, a new strategy of Pistia stratiotes absorbable nano-polystyrene as the pore-forming agent is regarded for preparing porous carbon materials. The absorption of polystyrene nano-plastics by plants will change the graphitization degree and promote pore formation in carbon materials during carbonization. The obtained root-derived carbon materials have a hierarchical pore structure, a large specific surface area (845.61 m2 g−1), and a high micropore ratio (52.95%). The prepared carbon materials exhibit a specific capacitance of 253.0 F g−1 at 0.5 A g−1 in 6 M KOH; compared with the control group, the specific capacitance increases by nearly 3 times, and the specific capacitance curve is stable. This paper provides a new strategy for the recovery of nano-plastics from aqueous environments by natural aquatic plants and the preparation of high-performance biomass carbon materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 25
- Issue :
- 22
- Database :
- Academic Search Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 173584213
- Full Text :
- https://doi.org/10.1039/d3gc02573j