Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater
Abstract This study aimed to synthesize a novel nanofiber adsorbent based on metal–organic frameworks (MOFs), ZIF-94-PAN, by incorporating ZIF-94 into polyacrylonitrile (PAN) through electrospinning. The investigation of the adsorption characteristics of ZIF-94-PAN for cobalt ions was undertaken, yi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-50796-9 |
| _version_ | 1797363406607482880 |
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| author | Cong Yin Yinyin Peng Hongjiang Li Guang Yang Guoyuan Yuan |
| author_facet | Cong Yin Yinyin Peng Hongjiang Li Guang Yang Guoyuan Yuan |
| author_sort | Cong Yin |
| collection | DOAJ |
| description | Abstract This study aimed to synthesize a novel nanofiber adsorbent based on metal–organic frameworks (MOFs), ZIF-94-PAN, by incorporating ZIF-94 into polyacrylonitrile (PAN) through electrospinning. The investigation of the adsorption characteristics of ZIF-94-PAN for cobalt ions was undertaken, yielding findings that suggest an optimum ZIF-94 loading content within the ZIF-94-PAN composite of 8%. The adsorption experiments revealed that, under pH 8.3 and 298 K, ZIF-94-PAN-8% attained cobalt ion equilibrium adsorption (139.08 mg/g). Additionally, the adsorption kinetics of cobalt ions exhibited conformity with the pseudo-second-order model, whereas adherence to the Freundlich isotherm model indicated a non-homogeneous, endothermic process. XPS analysis unveiled that the adsorption mechanism was characterized by the coordination of nitrogen and oxygen atoms within ZIF-94-PAN with cobalt ions. This study effectively addressed the challenges of separating and recovering MOFs adsorbents by fabricating them as nanofibers. The remarkable adsorption performance and stability of the ZIF-94-PAN nanofibers highlight their potential for removing cobalt-contaminated wastewater. |
| first_indexed | 2024-03-08T16:19:57Z |
| format | Article |
| id | doaj.art-efc3eae93a6144b7a9b8b8fa86fa8350 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T16:19:57Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-efc3eae93a6144b7a9b8b8fa86fa83502024-01-07T12:25:53ZengNature PortfolioScientific Reports2045-23222024-01-0114111110.1038/s41598-023-50796-9Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewaterCong Yin0Yinyin Peng1Hongjiang Li2Guang Yang3Guoyuan Yuan4Xi’an Research Institute of Hi-TechChongqing University of Science and TechnologyChongqing University of Science and TechnologyChongqing University of Science and TechnologyChongqing University of Science and TechnologyAbstract This study aimed to synthesize a novel nanofiber adsorbent based on metal–organic frameworks (MOFs), ZIF-94-PAN, by incorporating ZIF-94 into polyacrylonitrile (PAN) through electrospinning. The investigation of the adsorption characteristics of ZIF-94-PAN for cobalt ions was undertaken, yielding findings that suggest an optimum ZIF-94 loading content within the ZIF-94-PAN composite of 8%. The adsorption experiments revealed that, under pH 8.3 and 298 K, ZIF-94-PAN-8% attained cobalt ion equilibrium adsorption (139.08 mg/g). Additionally, the adsorption kinetics of cobalt ions exhibited conformity with the pseudo-second-order model, whereas adherence to the Freundlich isotherm model indicated a non-homogeneous, endothermic process. XPS analysis unveiled that the adsorption mechanism was characterized by the coordination of nitrogen and oxygen atoms within ZIF-94-PAN with cobalt ions. This study effectively addressed the challenges of separating and recovering MOFs adsorbents by fabricating them as nanofibers. The remarkable adsorption performance and stability of the ZIF-94-PAN nanofibers highlight their potential for removing cobalt-contaminated wastewater.https://doi.org/10.1038/s41598-023-50796-9 |
| spellingShingle | Cong Yin Yinyin Peng Hongjiang Li Guang Yang Guoyuan Yuan Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater Scientific Reports |
| title | Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater |
| title_full | Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater |
| title_fullStr | Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater |
| title_full_unstemmed | Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater |
| title_short | Facile construction of ZIF-94/PAN nanofiber by electrospinning for the removal of Co(II) from wastewater |
| title_sort | facile construction of zif 94 pan nanofiber by electrospinning for the removal of co ii from wastewater |
| url | https://doi.org/10.1038/s41598-023-50796-9 |
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