Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide capture
Nitrogen-doped porous carbons have been widely explored for CO₂ storage and separation, but expensive precursors and intricate synthetic approaches often limit their practical deployment. Here, we report a facile, one-step, solvent-free method to design nitrogen-doped microporous carbons (SBF-BC-KMx...
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Elsevier
2025-02-01
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| Series: | Journal of CO2 Utilization |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212982025000174 |
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| author | Urooj Kamran Nasir Shezad Soo-Jin Park Kyong Yop Rhee Shujie You Farid Akhtar |
| author_facet | Urooj Kamran Nasir Shezad Soo-Jin Park Kyong Yop Rhee Shujie You Farid Akhtar |
| author_sort | Urooj Kamran |
| collection | DOAJ |
| description | Nitrogen-doped porous carbons have been widely explored for CO₂ storage and separation, but expensive precursors and intricate synthetic approaches often limit their practical deployment. Here, we report a facile, one-step, solvent-free method to design nitrogen-doped microporous carbons (SBF-BC-KMx) for efficient CO₂ capture from sugarcane bagasse fibers (SBF) as a low-cost precursor. Melamine and KOH were used as a nitrogen-doping source and an activator, respectively. The specimen (SBF-BC-KM0.5), prepared with optimized melamine loading, possessed efficient textural features, including a specific surface area (SSA) of 1138 m² g⁻¹ , a micropore volume of 0.396 cm³ g⁻¹ , high concentration of ultra-micropores (<0.6 nm) (89 %) and high content of pyrrolic-N functionality (35 %). These properties enhanced the CO₂ capture performance, achieving 244.4 mg g⁻¹ at 273 K, 170.0 mg g⁻¹ at 293 K and 1 bar, and 351.5 mg g⁻¹ at 293 K and 10 bar. The optimized material exhibited a moderate isosteric heat of adsorption and an effective CO₂/N₂ selectivity at 293 K. The high ultra-micropore density significantly boosted CO₂ uptake and maintained stable CO₂ uptake over five adsorption cycles. Overall, this work devoted efforts to sustainable environment, biowaste management, and possible practical applicability of designed adsorbent for CO2 storage. |
| format | Article |
| id | doaj-art-d827fb26952d49baa20331b96ddcc153 |
| institution | Kabale University |
| issn | 2212-9839 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
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| series | Journal of CO2 Utilization |
| spelling | doaj-art-d827fb26952d49baa20331b96ddcc1532025-02-05T04:31:58ZengElsevierJournal of CO2 Utilization2212-98392025-02-0192103033Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide captureUrooj Kamran0Nasir Shezad1Soo-Jin Park2Kyong Yop Rhee3Shujie You4Farid Akhtar5Division of Materials Science, Luleå University of Technology, Luleå 97187, Sweden; Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin 17104, Republic of KoreaDivision of Materials Science, Luleå University of Technology, Luleå 97187, SwedenDepartment of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin 17104, Republic of Korea; Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, Yongin 17104, Republic of Korea; Corresponding author at: Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin 17104, Republic of Korea.Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin 17104, Republic of Korea; Corresponding authors.Division of Materials Science, Luleå University of Technology, Luleå 97187, SwedenDivision of Materials Science, Luleå University of Technology, Luleå 97187, Sweden; Corresponding authors.Nitrogen-doped porous carbons have been widely explored for CO₂ storage and separation, but expensive precursors and intricate synthetic approaches often limit their practical deployment. Here, we report a facile, one-step, solvent-free method to design nitrogen-doped microporous carbons (SBF-BC-KMx) for efficient CO₂ capture from sugarcane bagasse fibers (SBF) as a low-cost precursor. Melamine and KOH were used as a nitrogen-doping source and an activator, respectively. The specimen (SBF-BC-KM0.5), prepared with optimized melamine loading, possessed efficient textural features, including a specific surface area (SSA) of 1138 m² g⁻¹ , a micropore volume of 0.396 cm³ g⁻¹ , high concentration of ultra-micropores (<0.6 nm) (89 %) and high content of pyrrolic-N functionality (35 %). These properties enhanced the CO₂ capture performance, achieving 244.4 mg g⁻¹ at 273 K, 170.0 mg g⁻¹ at 293 K and 1 bar, and 351.5 mg g⁻¹ at 293 K and 10 bar. The optimized material exhibited a moderate isosteric heat of adsorption and an effective CO₂/N₂ selectivity at 293 K. The high ultra-micropore density significantly boosted CO₂ uptake and maintained stable CO₂ uptake over five adsorption cycles. Overall, this work devoted efforts to sustainable environment, biowaste management, and possible practical applicability of designed adsorbent for CO2 storage.http://www.sciencedirect.com/science/article/pii/S2212982025000174BiowasteUltra-microporesNitrogen-doped porous carbonsCO2 adsorption, selectivity |
| spellingShingle | Urooj Kamran Nasir Shezad Soo-Jin Park Kyong Yop Rhee Shujie You Farid Akhtar Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide capture Journal of CO2 Utilization Biowaste Ultra-micropores Nitrogen-doped porous carbons CO2 adsorption, selectivity |
| title | Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide capture |
| title_full | Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide capture |
| title_fullStr | Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide capture |
| title_full_unstemmed | Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide capture |
| title_short | Solvent-free valorization of sugarcane bagasse fibers into nitrogen-doped microporous carbons: Efficient contenders for selective carbon dioxide capture |
| title_sort | solvent free valorization of sugarcane bagasse fibers into nitrogen doped microporous carbons efficient contenders for selective carbon dioxide capture |
| topic | Biowaste Ultra-micropores Nitrogen-doped porous carbons CO2 adsorption, selectivity |
| url | http://www.sciencedirect.com/science/article/pii/S2212982025000174 |
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