Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon
Biomass-derived carbon has demonstrated great potentials as advanced electrode for capacitive deionization (CDI), owing to good electroconductivity, easy availability, intrinsic pores/channels. However, conventional simple pyrolysis of biomass always generates inadequate porosity with limited surfac...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-10-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025723000213 |
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| author | Yao Qiu Chunjie Zhang Rui Zhang Zhiyuan Liu Huazeng Yang Shuai Qi Yongzhao Hou Guangwu Wen Jilei Liu Dong Wang |
| author_facet | Yao Qiu Chunjie Zhang Rui Zhang Zhiyuan Liu Huazeng Yang Shuai Qi Yongzhao Hou Guangwu Wen Jilei Liu Dong Wang |
| author_sort | Yao Qiu |
| collection | DOAJ |
| description | Biomass-derived carbon has demonstrated great potentials as advanced electrode for capacitive deionization (CDI), owing to good electroconductivity, easy availability, intrinsic pores/channels. However, conventional simple pyrolysis of biomass always generates inadequate porosity with limited surface area. Moreover, biomass-derived carbon also suffers from poor wettability and single physical adsorption of ions, resulting in limited desalination performance. Herein, pore structure optimization and element co-doping are integrated on banana peels (BP)-derived carbon to construct hierarchically porous and B, N co-doped carbon with large ions-accessible surface area. A unique expansion-activation (EA) strategy is proposed to modulate the porosity and specific surface area of carbon. Furthermore, B, N co-doping could increase the ions-accessible sites with improved hydrophilicity, and promote ions adsorption. Benefitting from the synergistic effect of hierarchical porosity and B, N co-doping, the resultant electrode manifest enhanced CDI performance for NaCl with large desalination capacity (29.5 mg g−1), high salt adsorption rate (6.2 mg g−1 min−1), and versatile adsorption ability for other salts. Density functional theory reveals the enhanced deionization mechanism by pore and B, N co-doping. This work proposes a facile EA strategy for pore structure modulation of biomass-derived carbon, and demonstrates great potentials of integrating pore and heteroatoms-doping on constructing high-performance CDI electrode. |
| first_indexed | 2024-03-12T14:20:37Z |
| format | Article |
| id | doaj.art-9b18796e6a22466eaec8cfa5246d5801 |
| institution | Directory Open Access Journal |
| issn | 2468-0257 |
| language | English |
| last_indexed | 2024-03-12T14:20:37Z |
| publishDate | 2023-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj.art-9b18796e6a22466eaec8cfa5246d58012023-08-19T04:32:23ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572023-10-018514881500Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbonYao Qiu0Chunjie Zhang1Rui Zhang2Zhiyuan Liu3Huazeng Yang4Shuai Qi5Yongzhao Hou6Guangwu Wen7Jilei Liu8Dong Wang9School of Materials Science and Engineering, Shandong University of Technology, 266 Xincun West Road, Zibo, 255000, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, 92 Xidazhi Street, Harbin, 150001, ChinaSchool of Materials Science and Engineering, Shandong University of Technology, 266 Xincun West Road, Zibo, 255000, China; Corresponding authors.School of Materials Science and Engineering, Shandong University of Technology, 266 Xincun West Road, Zibo, 255000, ChinaSchool of Materials Science and Engineering, Shandong University of Technology, 266 Xincun West Road, Zibo, 255000, ChinaCollege of Chemistry and Environmental Engineering, Shenzhen University, 1066 Xueyuan Ave, Shenzhen, 518060, ChinaSchool of Materials Science and Engineering, Shandong University of Technology, 266 Xincun West Road, Zibo, 255000, ChinaSchool of Materials Science and Engineering, Shandong University of Technology, 266 Xincun West Road, Zibo, 255000, ChinaCollege of Materials Science and Engineering, Hunan University, 2 South Lushan Road, Changsha, 410082, China; Corresponding authors.School of Materials Science and Engineering, Shandong University of Technology, 266 Xincun West Road, Zibo, 255000, China; Corresponding authors.Biomass-derived carbon has demonstrated great potentials as advanced electrode for capacitive deionization (CDI), owing to good electroconductivity, easy availability, intrinsic pores/channels. However, conventional simple pyrolysis of biomass always generates inadequate porosity with limited surface area. Moreover, biomass-derived carbon also suffers from poor wettability and single physical adsorption of ions, resulting in limited desalination performance. Herein, pore structure optimization and element co-doping are integrated on banana peels (BP)-derived carbon to construct hierarchically porous and B, N co-doped carbon with large ions-accessible surface area. A unique expansion-activation (EA) strategy is proposed to modulate the porosity and specific surface area of carbon. Furthermore, B, N co-doping could increase the ions-accessible sites with improved hydrophilicity, and promote ions adsorption. Benefitting from the synergistic effect of hierarchical porosity and B, N co-doping, the resultant electrode manifest enhanced CDI performance for NaCl with large desalination capacity (29.5 mg g−1), high salt adsorption rate (6.2 mg g−1 min−1), and versatile adsorption ability for other salts. Density functional theory reveals the enhanced deionization mechanism by pore and B, N co-doping. This work proposes a facile EA strategy for pore structure modulation of biomass-derived carbon, and demonstrates great potentials of integrating pore and heteroatoms-doping on constructing high-performance CDI electrode.http://www.sciencedirect.com/science/article/pii/S2468025723000213Capacitive deionizationBiomass-derived carbonPore structureB, N co-dopingDesalination performance |
| spellingShingle | Yao Qiu Chunjie Zhang Rui Zhang Zhiyuan Liu Huazeng Yang Shuai Qi Yongzhao Hou Guangwu Wen Jilei Liu Dong Wang Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon Green Energy & Environment Capacitive deionization Biomass-derived carbon Pore structure B, N co-doping Desalination performance |
| title | Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon |
| title_full | Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon |
| title_fullStr | Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon |
| title_full_unstemmed | Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon |
| title_short | Integration of pore structure modulation and B, N co-doping for enhanced capacitance deionization of biomass-derived carbon |
| title_sort | integration of pore structure modulation and b n co doping for enhanced capacitance deionization of biomass derived carbon |
| topic | Capacitive deionization Biomass-derived carbon Pore structure B, N co-doping Desalination performance |
| url | http://www.sciencedirect.com/science/article/pii/S2468025723000213 |
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