Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water Purification
Polymeric membranes have been widely employed for water purification applications. However, the trade-off issue between the selectivity and permeability has limited its use in various applications. Mixed matrix membranes (MMMs) were introduced to overcome this limitation and to enhance the propertie...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-07-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/9/7/88 |
| _version_ | 1797765655424925696 |
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| author | Asmaa Elrasheedy Norhan Nady Mohamed Bassyouni Ahmed El-Shazly |
| author_facet | Asmaa Elrasheedy Norhan Nady Mohamed Bassyouni Ahmed El-Shazly |
| author_sort | Asmaa Elrasheedy |
| collection | DOAJ |
| description | Polymeric membranes have been widely employed for water purification applications. However, the trade-off issue between the selectivity and permeability has limited its use in various applications. Mixed matrix membranes (MMMs) were introduced to overcome this limitation and to enhance the properties and performance of polymeric membranes by incorporation of fillers such as silica and zeolites. Metal-organic frameworks (MOFs) are a new class of hybrid inorganic−organic materials that are introduced as novel fillers for incorporation in polymeric matrix to form composite membranes for different applications especially water desalination. A major advantage of MOFs over other inorganic fillers is the possibility of preparing different structures with different pore sizes and functionalities, which are designed especially for a targeted application. Different MMMs fabrication techniques have also been investigated to fabricate MMMs with pronounced properties for a specific application. Synthesis techniques include blending, layer-by-layer (LBL), gelatin-assisted seed growth and in situ growth that proved to give the most homogenous dispersion of MOFs within the organic matrix. It was found that the ideal filler loading of MOFs in different polymeric matrices is 10%, increasing the filler loading beyond this value led to formation of aggregates that significantly decreased the MOFs-MMMs performance. Despite the many merits of MOFs-MMMs, the main challenge facing the upscaling and wide commercial application of MOFs-MMMs is the difficult synthesis conditions of the MOFs itself and the stability and sustainability of MOFs-MMMs performance. Investigation of new MOFs and MOFs-MMMs synthesis techniques should be carried out for further industrial applications. Among these new synthesis methods, green MOFs synthesis has been highlighted as low cost, renewable, environmentally friendly and recyclable starting materials for MOFs-MMMs. This paper will focus on the investigation of the effect of different recently introduced MOFs on the performance of MOFs-MMMs in water purification applications. |
| first_indexed | 2024-03-12T20:13:13Z |
| format | Article |
| id | doaj.art-06bc4da2677e4ad988f6fc7a1a697447 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-12T20:13:13Z |
| publishDate | 2019-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-06bc4da2677e4ad988f6fc7a1a6974472023-08-02T01:29:29ZengMDPI AGMembranes2077-03752019-07-01978810.3390/membranes9070088membranes9070088Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water PurificationAsmaa Elrasheedy0Norhan Nady1Mohamed Bassyouni2Ahmed El-Shazly3Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), Alexandria 21934, EgyptChemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), Alexandria 21934, EgyptDepartment of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said 42526, EgyptChemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), Alexandria 21934, EgyptPolymeric membranes have been widely employed for water purification applications. However, the trade-off issue between the selectivity and permeability has limited its use in various applications. Mixed matrix membranes (MMMs) were introduced to overcome this limitation and to enhance the properties and performance of polymeric membranes by incorporation of fillers such as silica and zeolites. Metal-organic frameworks (MOFs) are a new class of hybrid inorganic−organic materials that are introduced as novel fillers for incorporation in polymeric matrix to form composite membranes for different applications especially water desalination. A major advantage of MOFs over other inorganic fillers is the possibility of preparing different structures with different pore sizes and functionalities, which are designed especially for a targeted application. Different MMMs fabrication techniques have also been investigated to fabricate MMMs with pronounced properties for a specific application. Synthesis techniques include blending, layer-by-layer (LBL), gelatin-assisted seed growth and in situ growth that proved to give the most homogenous dispersion of MOFs within the organic matrix. It was found that the ideal filler loading of MOFs in different polymeric matrices is 10%, increasing the filler loading beyond this value led to formation of aggregates that significantly decreased the MOFs-MMMs performance. Despite the many merits of MOFs-MMMs, the main challenge facing the upscaling and wide commercial application of MOFs-MMMs is the difficult synthesis conditions of the MOFs itself and the stability and sustainability of MOFs-MMMs performance. Investigation of new MOFs and MOFs-MMMs synthesis techniques should be carried out for further industrial applications. Among these new synthesis methods, green MOFs synthesis has been highlighted as low cost, renewable, environmentally friendly and recyclable starting materials for MOFs-MMMs. This paper will focus on the investigation of the effect of different recently introduced MOFs on the performance of MOFs-MMMs in water purification applications.https://www.mdpi.com/2077-0375/9/7/88metal-organic frameworkwater purificationdesalinationcomposite membranes |
| spellingShingle | Asmaa Elrasheedy Norhan Nady Mohamed Bassyouni Ahmed El-Shazly Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water Purification Membranes metal-organic framework water purification desalination composite membranes |
| title | Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water Purification |
| title_full | Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water Purification |
| title_fullStr | Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water Purification |
| title_full_unstemmed | Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water Purification |
| title_short | Metal Organic Framework Based Polymer Mixed Matrix Membranes: Review on Applications in Water Purification |
| title_sort | metal organic framework based polymer mixed matrix membranes review on applications in water purification |
| topic | metal-organic framework water purification desalination composite membranes |
| url | https://www.mdpi.com/2077-0375/9/7/88 |
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