One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption Performance
N-enriched porous carbons have played an important part in CO<sub>2</sub> adsorption application thanks to their abundant porosity, high stability and tailorable surface properties while still suffering from a non-efficient and high-cost synthesis method. Herein, a series of N-doped poro...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/20/6816 |
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| author | Qiyun Yu Jiali Bai Jiamei Huang Muslum Demir Bilge Nazli Altay Xin Hu Linlin Wang |
| author_facet | Qiyun Yu Jiali Bai Jiamei Huang Muslum Demir Bilge Nazli Altay Xin Hu Linlin Wang |
| author_sort | Qiyun Yu |
| collection | DOAJ |
| description | N-enriched porous carbons have played an important part in CO<sub>2</sub> adsorption application thanks to their abundant porosity, high stability and tailorable surface properties while still suffering from a non-efficient and high-cost synthesis method. Herein, a series of N-doped porous carbons were prepared by a facile one-pot KOH activating strategy from commercial urea formaldehyde resin (UF). The textural properties and nitrogen content of the N-doped carbons were carefully controlled by the activating temperature and KOH/UF mass ratios. As-prepared N-doped carbons show 3D block-shaped morphology, the BET surface area of up to 980 m<sup>2</sup>/g together with a pore volume of 0.52 cm<sup>3</sup>/g and N content of 23.51 wt%. The optimal adsorbent (UFK-600-0.2) presents a high CO<sub>2</sub> uptake capacity of 4.03 mmol/g at 0 °C and 1 bar. Moreover, as-prepared N-doped carbon adsorbents show moderate isosteric heat of adsorption (43–53 kJ/mol), acceptable ideal adsorption solution theory (IAST) selectivity of 35 and outstanding recycling performance. It has been pointed out that while the CO<sub>2</sub> uptake was mostly dependent on the textural feature, the N content of carbon also plays a critical role to define the CO<sub>2</sub> adsorption performance. The present study delivers favorable N-doped carbon for CO<sub>2</sub> uptake and provides a promising strategy for the design and synthesis of the carbon adsorbents. |
| first_indexed | 2024-03-09T19:43:48Z |
| format | Article |
| id | doaj.art-d871a16a1e3b49b89b17d2c6238a04e5 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T19:43:48Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-d871a16a1e3b49b89b17d2c6238a04e52023-11-24T01:31:36ZengMDPI AGMolecules1420-30492022-10-012720681610.3390/molecules27206816One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption PerformanceQiyun Yu0Jiali Bai1Jiamei Huang2Muslum Demir3Bilge Nazli Altay4Xin Hu5Linlin Wang6Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, ChinaKey Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, ChinaKey Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, ChinaDepartment of Chemical Engineering, Osmaniye Korkut Ata University, Osmaniye 80000, TurkeyCollege of Engineering Technology, Print and Graphic Media Science, Rochester Institute of Technology, Rochester, NY 14623, USAKey Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, ChinaKey Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology and Equipment of Zhejiang Province, College of Engineering, Zhejiang Normal University, Jinhua 321004, ChinaN-enriched porous carbons have played an important part in CO<sub>2</sub> adsorption application thanks to their abundant porosity, high stability and tailorable surface properties while still suffering from a non-efficient and high-cost synthesis method. Herein, a series of N-doped porous carbons were prepared by a facile one-pot KOH activating strategy from commercial urea formaldehyde resin (UF). The textural properties and nitrogen content of the N-doped carbons were carefully controlled by the activating temperature and KOH/UF mass ratios. As-prepared N-doped carbons show 3D block-shaped morphology, the BET surface area of up to 980 m<sup>2</sup>/g together with a pore volume of 0.52 cm<sup>3</sup>/g and N content of 23.51 wt%. The optimal adsorbent (UFK-600-0.2) presents a high CO<sub>2</sub> uptake capacity of 4.03 mmol/g at 0 °C and 1 bar. Moreover, as-prepared N-doped carbon adsorbents show moderate isosteric heat of adsorption (43–53 kJ/mol), acceptable ideal adsorption solution theory (IAST) selectivity of 35 and outstanding recycling performance. It has been pointed out that while the CO<sub>2</sub> uptake was mostly dependent on the textural feature, the N content of carbon also plays a critical role to define the CO<sub>2</sub> adsorption performance. The present study delivers favorable N-doped carbon for CO<sub>2</sub> uptake and provides a promising strategy for the design and synthesis of the carbon adsorbents.https://www.mdpi.com/1420-3049/27/20/6816porous carbonCO<sub>2</sub> adsorptionone-pot KOH activationN-doped |
| spellingShingle | Qiyun Yu Jiali Bai Jiamei Huang Muslum Demir Bilge Nazli Altay Xin Hu Linlin Wang One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption Performance Molecules porous carbon CO<sub>2</sub> adsorption one-pot KOH activation N-doped |
| title | One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption Performance |
| title_full | One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption Performance |
| title_fullStr | One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption Performance |
| title_full_unstemmed | One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption Performance |
| title_short | One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO<sub>2</sub> Adsorption Performance |
| title_sort | one pot synthesis of n rich porous carbon for efficient co sub 2 sub adsorption performance |
| topic | porous carbon CO<sub>2</sub> adsorption one-pot KOH activation N-doped |
| url | https://www.mdpi.com/1420-3049/27/20/6816 |
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