Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases Adsorption
Industrialization and modernization have significantly improved the quality of life but have also led to substantial pollution. Cost-effective technologies are urgently needed to mitigate emissions from major polluting sectors, such as the automotive and transport industries. In this study, we synth...
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2025-07-01
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| author | Hun-Seung Jeong Cheol-Ki Cho Dong-Chul Chung Kay-Hyeok An Byung-Joo Kim |
| author_facet | Hun-Seung Jeong Cheol-Ki Cho Dong-Chul Chung Kay-Hyeok An Byung-Joo Kim |
| author_sort | Hun-Seung Jeong |
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| description | Industrialization and modernization have significantly improved the quality of life but have also led to substantial pollution. Cost-effective technologies are urgently needed to mitigate emissions from major polluting sectors, such as the automotive and transport industries. In this study, we synthesized naturally derived, kapok-based porous carbon fibers (KP-PCFs) with hollow structures. We investigated their adsorption/desorption behavior for the greenhouse gas n-butane following ASTM D5228 standards. Scanning electron microscopy and X-ray diffraction analyses were conducted to examine changes in fiber diameter and crystalline structure under different activation times. The micropore properties of KP-PCFs were characterized using Brunauer–Emmett–Teller, <i>t</i>-plot, and non-localized density functional theory models based on N<sub>2</sub>/77K adsorption isotherm data. The specific surface area and total pore volume ranged from 500 to 1100 m<sup>2</sup>/g and 0.24 to 0.60 cm<sup>3</sup>/g, respectively, while the micropore and mesopore volumes were 0.20–0.45 cm<sup>3</sup>/g and 0.04–0.15 cm<sup>3</sup>/g, respectively. With increasing activation time, the n-butane adsorption capacity improved from 62.2% to 73.5%, whereas retentivity (residual adsorbate) decreased from 6.0% to 1.3%. The adsorption/desorption rate was highly correlated with pore diameter: adsorption capacity was highest for diameters of 1.5–2.5 nm, while retentivity was greatest for diameters of 3.5–5.0 nm. |
| format | Article |
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| publishDate | 2025-07-01 |
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| series | Fibers |
| spelling | doaj-art-c45a3c4b5f064fb7835d4ee25e0e2af92025-07-25T13:22:40ZengMDPI AGFibers2079-64392025-07-011379210.3390/fib13070092Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases AdsorptionHun-Seung Jeong0Cheol-Ki Cho1Dong-Chul Chung2Kay-Hyeok An3Byung-Joo Kim4Materials Application Research Institute, Jeonju University, Jeonju 55069, Republic of KoreaMaterials Application Research Institute, Jeonju University, Jeonju 55069, Republic of KoreaDepartment of Organic Materials and Textile Engineering, Jeonbuk National University, Jeonju 54896, Republic of KoreaMaterials Application Research Institute, Jeonju University, Jeonju 55069, Republic of KoreaMaterials Application Research Institute, Jeonju University, Jeonju 55069, Republic of KoreaIndustrialization and modernization have significantly improved the quality of life but have also led to substantial pollution. Cost-effective technologies are urgently needed to mitigate emissions from major polluting sectors, such as the automotive and transport industries. In this study, we synthesized naturally derived, kapok-based porous carbon fibers (KP-PCFs) with hollow structures. We investigated their adsorption/desorption behavior for the greenhouse gas n-butane following ASTM D5228 standards. Scanning electron microscopy and X-ray diffraction analyses were conducted to examine changes in fiber diameter and crystalline structure under different activation times. The micropore properties of KP-PCFs were characterized using Brunauer–Emmett–Teller, <i>t</i>-plot, and non-localized density functional theory models based on N<sub>2</sub>/77K adsorption isotherm data. The specific surface area and total pore volume ranged from 500 to 1100 m<sup>2</sup>/g and 0.24 to 0.60 cm<sup>3</sup>/g, respectively, while the micropore and mesopore volumes were 0.20–0.45 cm<sup>3</sup>/g and 0.04–0.15 cm<sup>3</sup>/g, respectively. With increasing activation time, the n-butane adsorption capacity improved from 62.2% to 73.5%, whereas retentivity (residual adsorbate) decreased from 6.0% to 1.3%. The adsorption/desorption rate was highly correlated with pore diameter: adsorption capacity was highest for diameters of 1.5–2.5 nm, while retentivity was greatest for diameters of 3.5–5.0 nm.https://www.mdpi.com/2079-6439/13/7/92kapokhollow fiberporous carbonn-Butane adsorption/desorption |
| spellingShingle | Hun-Seung Jeong Cheol-Ki Cho Dong-Chul Chung Kay-Hyeok An Byung-Joo Kim Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases Adsorption Fibers kapok hollow fiber porous carbon n-Butane adsorption/desorption |
| title | Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases Adsorption |
| title_full | Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases Adsorption |
| title_fullStr | Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases Adsorption |
| title_full_unstemmed | Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases Adsorption |
| title_short | Kapok-Derived Super Hollow Porous Carbon Fibers and Their Greenhouse Gases Adsorption |
| title_sort | kapok derived super hollow porous carbon fibers and their greenhouse gases adsorption |
| topic | kapok hollow fiber porous carbon n-Butane adsorption/desorption |
| url | https://www.mdpi.com/2079-6439/13/7/92 |
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