Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67
Due to the continuous and adverse effects of microplastics on the environment, an increasing number of studies have begun to focus on their migration patterns and removal from aquatic environments. Herein, our study innovatively evaluated the ability of the capacity of ZIF-67, a novel metal–organic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Toxics |
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| Online Access: | https://www.mdpi.com/2305-6304/10/2/70 |
| _version_ | 1827652490325131264 |
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| author | Hongyou Wan Junkai Wang Xiaoyu Sheng Jingwei Yan Wei Zhang Ying Xu |
| author_facet | Hongyou Wan Junkai Wang Xiaoyu Sheng Jingwei Yan Wei Zhang Ying Xu |
| author_sort | Hongyou Wan |
| collection | DOAJ |
| description | Due to the continuous and adverse effects of microplastics on the environment, an increasing number of studies have begun to focus on their migration patterns and removal from aquatic environments. Herein, our study innovatively evaluated the ability of the capacity of ZIF-67, a novel metal–organic framework (MOF) material, to adsorb polystyrene (PS) microplastics (MPs) from aqueous solutions, aiming to explore the potential of MOF materials to remove MPs from wastewater. The adsorption ratio of PSMPs (5 mg/L, 30 mL) by ZIF-67 reached up to 92.1%, and the PSMP adsorption equilibrium was achieved within 20 min at 298 K. The adsorption of PSMPs would be favored at a pH of 8, a PSMPs solution concentration of 5 mg/L, and a temperature of 298 K. Further analyses demonstrated that hydrogen bond interactions, π-π stacking, and electrostatic interactions played a crucial role in the adsorption of PSMPs by ZIF-67 in aqueous solutions. Our findings thus provide insight into novel methods to remove MPs from acidic and weakly alkaline aquatic environments and wastewater. |
| first_indexed | 2024-03-09T20:56:09Z |
| format | Article |
| id | doaj.art-1b2ee3c87afa408cadfcb5b2fa7ce430 |
| institution | Directory Open Access Journal |
| issn | 2305-6304 |
| language | English |
| last_indexed | 2024-03-09T20:56:09Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Toxics |
| spelling | doaj.art-1b2ee3c87afa408cadfcb5b2fa7ce4302023-11-23T22:20:19ZengMDPI AGToxics2305-63042022-02-011027010.3390/toxics10020070Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67Hongyou Wan0Junkai Wang1Xiaoyu Sheng2Jingwei Yan3Wei Zhang4Ying Xu5School of Ecology and Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, ChinaSchool of Ecology and Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, ChinaSchool of Ecology and Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, ChinaSchool of Ecology and Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, ChinaSchool of Ecology and Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, ChinaSchool of Ecology and Environment, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, ChinaDue to the continuous and adverse effects of microplastics on the environment, an increasing number of studies have begun to focus on their migration patterns and removal from aquatic environments. Herein, our study innovatively evaluated the ability of the capacity of ZIF-67, a novel metal–organic framework (MOF) material, to adsorb polystyrene (PS) microplastics (MPs) from aqueous solutions, aiming to explore the potential of MOF materials to remove MPs from wastewater. The adsorption ratio of PSMPs (5 mg/L, 30 mL) by ZIF-67 reached up to 92.1%, and the PSMP adsorption equilibrium was achieved within 20 min at 298 K. The adsorption of PSMPs would be favored at a pH of 8, a PSMPs solution concentration of 5 mg/L, and a temperature of 298 K. Further analyses demonstrated that hydrogen bond interactions, π-π stacking, and electrostatic interactions played a crucial role in the adsorption of PSMPs by ZIF-67 in aqueous solutions. Our findings thus provide insight into novel methods to remove MPs from acidic and weakly alkaline aquatic environments and wastewater.https://www.mdpi.com/2305-6304/10/2/70microplasticsMOF materialZIF-67adsorptionwater environment |
| spellingShingle | Hongyou Wan Junkai Wang Xiaoyu Sheng Jingwei Yan Wei Zhang Ying Xu Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67 Toxics microplastics MOF material ZIF-67 adsorption water environment |
| title | Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67 |
| title_full | Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67 |
| title_fullStr | Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67 |
| title_full_unstemmed | Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67 |
| title_short | Removal of Polystyrene Microplastics from Aqueous Solution Using the Metal–Organic Framework Material of ZIF-67 |
| title_sort | removal of polystyrene microplastics from aqueous solution using the metal organic framework material of zif 67 |
| topic | microplastics MOF material ZIF-67 adsorption water environment |
| url | https://www.mdpi.com/2305-6304/10/2/70 |
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