Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S
Abstract Deep eutectic solvent (DES) as the guest molecule and flexible Metal-organic framework (MOF) as the supporting material can be used to provide an efficient catalyst: flexible dual Fe-based DES@MOF, which can efficiently remove H2S in discontinuous removal process (100–180°C). The materials...
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| Format: | Article |
| Language: | English |
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Springer
2024-01-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.230264 |
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| author | Fengke Wang Chaofan Li Weizhen Kong Shucan Qin Qianqian Peng Lihua Zang Yunqian Ma Yi Nie Guihuan Yan |
| author_facet | Fengke Wang Chaofan Li Weizhen Kong Shucan Qin Qianqian Peng Lihua Zang Yunqian Ma Yi Nie Guihuan Yan |
| author_sort | Fengke Wang |
| collection | DOAJ |
| description | Abstract Deep eutectic solvent (DES) as the guest molecule and flexible Metal-organic framework (MOF) as the supporting material can be used to provide an efficient catalyst: flexible dual Fe-based DES@MOF, which can efficiently remove H2S in discontinuous removal process (100–180°C). The materials were characterized by XRD SEM, FT-IR, BET, XPS, TG, CV and Py-FTIR. According to the result, MOF (MIL-53(Fe)) incorporating 30 wt% DES (ChCl/FeCl3) exhibited the best H2S removal performance at 180°C, with the H2S removal capacity of 2527 mg mL−1 (3744 mg g−1). And the H2S removal capacity reduced by 9% after two cycles of thermal regeneration. The process of desulfurization includes two stages: catalytic oxidation and adsorption, which are determined by the Fe3+ in DES and the structural characteristics, such as the aggregation of mesopores, respectively. For MIL-53(Fe), FeOOH as an intermediate and Lewis acid sites also played a catalytic role. Elemental sulfur was the predominant product with a small amount of sulfate. Both elemental sulfur and DES can induce the flexible deformation of MOF as the guest molecule to relieve the passivation of catalyst. |
| format | Article |
| id | doaj-art-5305d43845d040c8a7bf3e3a77ca76b5 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-5305d43845d040c8a7bf3e3a77ca76b52025-02-09T12:24:20ZengSpringerAerosol and Air Quality Research1680-85842071-14092024-01-0124511610.4209/aaqr.230264Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2SFengke Wang0Chaofan Li1Weizhen Kong2Shucan Qin3Qianqian Peng4Lihua Zang5Yunqian Ma6Yi Nie7Guihuan Yan8College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science)College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science)College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science)College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science)College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science)College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science)College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science)Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan UniversityEcology Institute of Shandong Academy of Science (China-Japan Friendly Biotechnology Research Center, Shandong Academy of Sciences)Abstract Deep eutectic solvent (DES) as the guest molecule and flexible Metal-organic framework (MOF) as the supporting material can be used to provide an efficient catalyst: flexible dual Fe-based DES@MOF, which can efficiently remove H2S in discontinuous removal process (100–180°C). The materials were characterized by XRD SEM, FT-IR, BET, XPS, TG, CV and Py-FTIR. According to the result, MOF (MIL-53(Fe)) incorporating 30 wt% DES (ChCl/FeCl3) exhibited the best H2S removal performance at 180°C, with the H2S removal capacity of 2527 mg mL−1 (3744 mg g−1). And the H2S removal capacity reduced by 9% after two cycles of thermal regeneration. The process of desulfurization includes two stages: catalytic oxidation and adsorption, which are determined by the Fe3+ in DES and the structural characteristics, such as the aggregation of mesopores, respectively. For MIL-53(Fe), FeOOH as an intermediate and Lewis acid sites also played a catalytic role. Elemental sulfur was the predominant product with a small amount of sulfate. Both elemental sulfur and DES can induce the flexible deformation of MOF as the guest molecule to relieve the passivation of catalyst.https://doi.org/10.4209/aaqr.230264Deep eutectic solventMetal-organic frameworkCatalytic oxidationH2S removalFlexible deformation |
| spellingShingle | Fengke Wang Chaofan Li Weizhen Kong Shucan Qin Qianqian Peng Lihua Zang Yunqian Ma Yi Nie Guihuan Yan Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S Aerosol and Air Quality Research Deep eutectic solvent Metal-organic framework Catalytic oxidation H2S removal Flexible deformation |
| title | Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S |
| title_full | Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S |
| title_fullStr | Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S |
| title_full_unstemmed | Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S |
| title_short | Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S |
| title_sort | flexible dual fe based catalyst mil 53 fe loaded with deep eutectic solvent for discontinuous selective oxidation of h2s |
| topic | Deep eutectic solvent Metal-organic framework Catalytic oxidation H2S removal Flexible deformation |
| url | https://doi.org/10.4209/aaqr.230264 |
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