Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid Membrane
Mercury is one of the most toxic heavy metals that can cause terrible disease for human beings. Among different absorption materials, MOF (metal–organic framework) materials show potential as very attractive materials for the rapid removal of mercury. However, the instability and difficulty for rege...
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| Format: | Article |
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MDPI AG
2021-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/10/2488 |
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| author | Jian Gao Ziming Li Ziqi Deng Meihua Liu Wei Wei Chunbai Zheng Yifan Zhang Shusen Chen Pengyang Deng |
| author_facet | Jian Gao Ziming Li Ziqi Deng Meihua Liu Wei Wei Chunbai Zheng Yifan Zhang Shusen Chen Pengyang Deng |
| author_sort | Jian Gao |
| collection | DOAJ |
| description | Mercury is one of the most toxic heavy metals that can cause terrible disease for human beings. Among different absorption materials, MOF (metal–organic framework) materials show potential as very attractive materials for the rapid removal of mercury. However, the instability and difficulty for regeneration of MOF crystals limit their applications. Here, a continuous sulfur-modified MOF (UiO-66-NHC(S)NHMe) layer was synthesized in situ on polymeric membranes (PP non-woven fabrics) by post-synthetic modification and used for rapid mercury removal. The MOF-based membrane (US-N) showed high selectivity for mercury in different aqueous systems, which is better than sulfur-modified MOF powders. A thinner MOF layer on US-N showed a much better mercury ion removal performance. US-N with a 59.3 nm MOF layer could remove more than 85% of mercury in 20 min from an aqueous solution. In addition, the US-N can simply regenerate several times for mercury removal and maintain the initial performance (removal ratio > 98%), exhibiting excellent durability and stability. This work promotes the application of MOF materials in the rapid removal of hazardous heavy metal ions from practical environments. |
| first_indexed | 2024-03-10T06:20:41Z |
| format | Article |
| id | doaj.art-fe604bd008204a46a88e7d0b29efc212 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T06:20:41Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-fe604bd008204a46a88e7d0b29efc2122023-11-22T19:22:02ZengMDPI AGNanomaterials2079-49912021-09-011110248810.3390/nano11102488Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid MembraneJian Gao0Ziming Li1Ziqi Deng2Meihua Liu3Wei Wei4Chunbai Zheng5Yifan Zhang6Shusen Chen7Pengyang Deng8CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, ChinaBeijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, ChinaDepartment of Chemistry, College of Science, Yanbian University, Yanji 133002, ChinaCAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, ChinaCAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, ChinaCAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, ChinaCAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, ChinaBeijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, ChinaCAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, ChinaMercury is one of the most toxic heavy metals that can cause terrible disease for human beings. Among different absorption materials, MOF (metal–organic framework) materials show potential as very attractive materials for the rapid removal of mercury. However, the instability and difficulty for regeneration of MOF crystals limit their applications. Here, a continuous sulfur-modified MOF (UiO-66-NHC(S)NHMe) layer was synthesized in situ on polymeric membranes (PP non-woven fabrics) by post-synthetic modification and used for rapid mercury removal. The MOF-based membrane (US-N) showed high selectivity for mercury in different aqueous systems, which is better than sulfur-modified MOF powders. A thinner MOF layer on US-N showed a much better mercury ion removal performance. US-N with a 59.3 nm MOF layer could remove more than 85% of mercury in 20 min from an aqueous solution. In addition, the US-N can simply regenerate several times for mercury removal and maintain the initial performance (removal ratio > 98%), exhibiting excellent durability and stability. This work promotes the application of MOF materials in the rapid removal of hazardous heavy metal ions from practical environments.https://www.mdpi.com/2079-4991/11/10/2488metal–organic frameworksmembranemercury removalrapidregenerable |
| spellingShingle | Jian Gao Ziming Li Ziqi Deng Meihua Liu Wei Wei Chunbai Zheng Yifan Zhang Shusen Chen Pengyang Deng Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid Membrane Nanomaterials metal–organic frameworks membrane mercury removal rapid regenerable |
| title | Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid Membrane |
| title_full | Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid Membrane |
| title_fullStr | Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid Membrane |
| title_full_unstemmed | Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid Membrane |
| title_short | Rapid Removal of Mercury from Water by Novel MOF/PP Hybrid Membrane |
| title_sort | rapid removal of mercury from water by novel mof pp hybrid membrane |
| topic | metal–organic frameworks membrane mercury removal rapid regenerable |
| url | https://www.mdpi.com/2079-4991/11/10/2488 |
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