A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical Treatment
To comparatively study the effects of cold plasma activation and chemical treatment on the adsorption capacities of biomass carbon nanofiber membranes (BCNMs), microcrystalline cellulose (MCC) and chitosan (CS) were used to fabricate porous BCNMs by electrospinning and carbonization. Two modificatio...
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2025-05-01
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| author | Qian He Jinhui Xiong Huanbo Wang Linkun Xie Xijuan Chai Lianpeng Zhang Siqun Wang Guanben Du Kaimeng Xu |
| author_facet | Qian He Jinhui Xiong Huanbo Wang Linkun Xie Xijuan Chai Lianpeng Zhang Siqun Wang Guanben Du Kaimeng Xu |
| author_sort | Qian He |
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| description | To comparatively study the effects of cold plasma activation and chemical treatment on the adsorption capacities of biomass carbon nanofiber membranes (BCNMs), microcrystalline cellulose (MCC) and chitosan (CS) were used to fabricate porous BCNMs by electrospinning and carbonization. Two modification methods, including oxygen (O<sub>2</sub>) plasma activation and chemical treatment using nitric acid (HNO<sub>3</sub>), sulfuric acid (H<sub>2</sub>SO<sub>4</sub>), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), and urea, were further employed to enhance their adsorption performance. Various carbonyl group (C=O), ether bond (C-O), carboxyl group (O-C=O) and pyridinic nitrogen (N), pyrrolic N, and quaternary N functional groups were successfully introduced onto the surface of the BCNMs by the two methods. The BCNM-O<sub>2</sub> showed optimal formaldehyde absorption capacity (120.67 mg g<sup>−1</sup>), corresponding to its highest contents of N, O-containing functional groups, and intact network structure. However, chemical treatment in strong acid or oxidative solutions destructed the microporous structures and changed the size uniformity of fibers in the BCNMs, resulting in a decline in formaldehyde adsorption capacity. A synergistically physical–chemical adsorption took place during formaldehyde adsorption by the modified biomass nanofiber membranes, due to the coexistence of suitable functional groups and porous structures in the membranes. |
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| institution | Kabale University |
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| language | English |
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| series | Molecules |
| spelling | doaj-art-c63b11a071b34c4fa996147f5865eb012025-08-20T03:47:58ZengMDPI AGMolecules1420-30492025-05-013010218410.3390/molecules30102184A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical TreatmentQian He0Jinhui Xiong1Huanbo Wang2Linkun Xie3Xijuan Chai4Lianpeng Zhang5Siqun Wang6Guanben Du7Kaimeng Xu8Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaYunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaYunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaYunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaYunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaYunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaCenter for Renewable Carbon, The University of Tennessee, Knoxville, TN 37996, USAYunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaYunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, ChinaTo comparatively study the effects of cold plasma activation and chemical treatment on the adsorption capacities of biomass carbon nanofiber membranes (BCNMs), microcrystalline cellulose (MCC) and chitosan (CS) were used to fabricate porous BCNMs by electrospinning and carbonization. Two modification methods, including oxygen (O<sub>2</sub>) plasma activation and chemical treatment using nitric acid (HNO<sub>3</sub>), sulfuric acid (H<sub>2</sub>SO<sub>4</sub>), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), and urea, were further employed to enhance their adsorption performance. Various carbonyl group (C=O), ether bond (C-O), carboxyl group (O-C=O) and pyridinic nitrogen (N), pyrrolic N, and quaternary N functional groups were successfully introduced onto the surface of the BCNMs by the two methods. The BCNM-O<sub>2</sub> showed optimal formaldehyde absorption capacity (120.67 mg g<sup>−1</sup>), corresponding to its highest contents of N, O-containing functional groups, and intact network structure. However, chemical treatment in strong acid or oxidative solutions destructed the microporous structures and changed the size uniformity of fibers in the BCNMs, resulting in a decline in formaldehyde adsorption capacity. A synergistically physical–chemical adsorption took place during formaldehyde adsorption by the modified biomass nanofiber membranes, due to the coexistence of suitable functional groups and porous structures in the membranes.https://www.mdpi.com/1420-3049/30/10/2184gaseous formaldehydeadsorptionelectrospinningcarbonizationchemical treatmentcold plasma activation |
| spellingShingle | Qian He Jinhui Xiong Huanbo Wang Linkun Xie Xijuan Chai Lianpeng Zhang Siqun Wang Guanben Du Kaimeng Xu A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical Treatment Molecules gaseous formaldehyde adsorption electrospinning carbonization chemical treatment cold plasma activation |
| title | A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical Treatment |
| title_full | A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical Treatment |
| title_fullStr | A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical Treatment |
| title_full_unstemmed | A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical Treatment |
| title_short | A Comparative Study on Absorption of Gaseous Formaldehyde by Electrospun Biomass Carbon Nanofiber Membranes Modified by Plasma Activation and Chemical Treatment |
| title_sort | comparative study on absorption of gaseous formaldehyde by electrospun biomass carbon nanofiber membranes modified by plasma activation and chemical treatment |
| topic | gaseous formaldehyde adsorption electrospinning carbonization chemical treatment cold plasma activation |
| url | https://www.mdpi.com/1420-3049/30/10/2184 |
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