Enhanced desalination performance of aluminium fumarate MOF-incorporated electrospun nanofiber membrane with bead-on-string structure for membrane distillation

Wu, Xiaoqiong; Mirza, Nouman Rafique; Huang, Zhen; Zhang, Jianhua; Zheng, Yu-Ming; Xiang, Jun; Xie, Zhiyuan

doi:10.1016/j.desal.2021.115338

Cited by 34 publications

(10 citation statements)

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“…The incorporation of nano-additives into ENMs would further tune membrane surface characteristics and the MD process performance [ 78 ]. Modification of electrospun MD membranes using functional nanomaterials such as metal–organic frameworks (MOFs) [ 79 , 80 ], silica (SiO 2 ), titania (TiO 2 ), zeolites, carbon-based nanomaterials including CNT [ 81 ], graphene oxide (GO) [ 82 ], and activated carbon (AC) [ 83 ] are detailed in the following section.…”

Section: New Developments In Nanofiber-based Membranesmentioning

confidence: 99%

“…This may lead to contamination of the product water with the nano-sized MOFs. The electrospinning of MOF-based polymer dope solutions followed by pyrolysis under controlled conditions has the potential to resolve the leaching issues [ 79 ], physically trapping them into the nanofibers, which ultimately resolves the issues of chemical compatibility as well the mechanical stability of the resultant membranes [ 79 , 80 ].…”

Section: Modification Of Enms With Functional Molecules and Their Eff...mentioning

confidence: 99%

“…The presence of AlFu MOF nanomaterials also enhanced the surface roughness, WCA, LEP, and thereby anti-wetting characteristics of the MD membrane [ 74 ]. Figure 3 a shows a schematic diagram of the DCMD process while using AlFu-MOF-incorporated ENMs, revealing systematically ordered pores in MOFs with sizes between 0.6 and 0.7 nm [ 80 ], which offer an additional path for vapor transport and result in enhanced permeate flux [ 85 ]. Moreover, the presence of AlFu MOFs on the surface of ENMs in the form of protrusions enhances the surface roughness, which effectively increases the area for evaporation [ 64 ].…”

Section: Modification Of Enms With Functional Molecules and Their Eff...mentioning

confidence: 99%

“…The PVDF-HFP ENM only had a WCA of 127.6°, while 0.75% ZIF-71 NP-incorporated PVDF-HFP ENMs showed increased hydrophobic properties with a WCA of 135°, and enhanced chemical and mechanical stability. The DCMD efficiency while using this nanostructured MD membrane was reported as 99.5% [ 80 ].…”

Section: Modification Of Enms With Functional Molecules and Their Eff...mentioning

confidence: 99%

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Modified Electrospun Membranes Using Different Nanomaterials for Membrane Distillation

2023

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Obtaining fresh drinking water is a challenge directly related to the change in agricultural, industrial, and societal demands and pressure. Therefore, the sustainable treatment of saline water to get clean water is a major requirement for human survival. In this review, we have detailed the use of electrospun nanofiber-based membranes (ENMs) for water reclamation improvements with respect to physical and chemical modifications. Although membrane distillation (MD) has been considered a low-cost water reclamation process, especially with the availability of low-grade waste heat sources, significant improvements are still required in terms of preparing efficient membranes with enhanced water flux, anti-fouling, and anti-scaling characteristics. In particular, different types of nanomaterials have been explored as guest molecules for electrospinning with different polymers. Nanomaterials such as metallic organic frameworks (MOFs), zeolites, dioxides, carbon nanotubes (CNTs), etc., have opened unprecedented perspectives for the implementation of the MD process. The integration of nanofillers gives appropriate characteristics to the MD membranes by changing their chemical and physical properties, which significantly enhances energy efficiency without impacting the economic costs. Here, we provide a comprehensive overview of the state-of-the-art status, the opportunities, open challenges, and pitfalls of the emerging field of modified ENMs using different nanomaterials for desalination applications.

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Section: New Developments In Nanofiber-based Membranesmentioning

confidence: 99%

Section: Modification Of Enms With Functional Molecules and Their Eff...mentioning

confidence: 99%

Section: Modification Of Enms With Functional Molecules and Their Eff...mentioning

confidence: 99%

Section: Modification Of Enms With Functional Molecules and Their Eff...mentioning

confidence: 99%

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Modified Electrospun Membranes Using Different Nanomaterials for Membrane Distillation

2023

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“…MOFs are a class of nanoporous materials composed of central metal clusters or ions and organic ligands, which possess a large specific surface area, a high porosity, a low thermal conductivity, and ordered nanopores [ 106 ]. In recent years, MOFs have attracted significant interest for their role as nanofillers in pressure-driven liquid separations to drastically improve separation performances by providing additional water channels [ 107 ]. In 2016, Zuo and Chung first introduced MOFs into membranes for membrane distillation, which led to a breakthrough in new applications for ENMs [ 108 ].…”

Section: Enms With a Nanofiber Layer As The Selective Layermentioning

confidence: 99%

Electrospun Nanofiber-Based Membranes for Water Treatment

et al. 2022

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Water purification and water desalination via membrane technology are generally deemed as reliable supplementaries for abundant potable water. Electrospun nanofiber-based membranes (ENMs), benefitting from characteristics such as a higher specific surface area, higher porosity, lower thickness, and possession of attracted broad attention, has allowed it to evolve into a promising candidate rapidly. Here, great attention is placed on the current status of ENMs with two categories according to the roles of electrospun nanofiber layers: (i) nanofiber layer serving as a selective layer, (ii) nanofiber layer serving as supporting substrate. For the nanofiber layer’s role as a selective layer, this work presents the structures and properties of conventional ENMs and mixed matrix ENMs. Fabricating parameters and adjusting approaches such as polymer and cosolvent, inorganic and organic incorporation and surface modification are demonstrated in detail. It is crucial to have a matched selective layer for nanofiber layers acting as a supporting layer. The various selective layers fabricated on the nanofiber layer are put forward in this paper. The fabrication approaches include inorganic deposition, polymer coating, and interfacial polymerization. Lastly, future perspectives and the main challenges in the field concerning the use of ENMs for water treatment are discussed. It is expected that the progress of ENMs will promote the prosperity and utilization of various industries such as water treatment, environmental protection, healthcare, and energy storage.

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Nanomaterial‐Incorporated Membrane Distillation Membranes: Characteristics, Fabrication Techniques, and Applications

2023

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Membrane distillation (MD), a temperature‐driven membrane separation process, is used for various applications due to its less complicated design. MD operations encounter major issues such as permeate flux decrease, membrane fouling, and wetting. A lot of research has been conducted in the past years on the modification of MD membranes by incorporating nanomaterials to overcome these obstacles and considerably increase their performance. Nanomaterials incorporated into the membranes improve the water permeability, mechanical strength, and fouling. The incorporation of next‐generation nanomaterials like metal oxide nanoparticles, carbon‐based nanomaterials, graphene‐based membranes, quantum dots, and metal‐organic frameworks in the MD membranes is investigated. Essential membrane properties for MD operations are comprehensively studied, including higher liquid entry pressure, permeability, porosity, hydrophobicity, thermal stability, mean pore size, and low fouling rate. Significant advances in the application of nanomaterials to the modification of MD membranes as well as other membrane fabrication techniques adopted for the incorporation of nanoparticles like surface grafting, interfacial polymerization, plasma polymerization, and dip coating are reviewed. Important future aspects are discussed.

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Enhanced desalination performance of aluminium fumarate MOF-incorporated electrospun nanofiber membrane with bead-on-string structure for membrane distillation

Cited by 34 publications

References 50 publications

Modified Electrospun Membranes Using Different Nanomaterials for Membrane Distillation

Modified Electrospun Membranes Using Different Nanomaterials for Membrane Distillation

Electrospun Nanofiber-Based Membranes for Water Treatment

Nanomaterial‐Incorporated Membrane Distillation Membranes: Characteristics, Fabrication Techniques, and Applications

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