High‐flux strategy for electrospun nanofibers in membrane distillation to treat aquaculture wastewater: a review

Zhou, Lei; Tan, Soon Huat; Ahmad, Abdul Latif; Low, Siew Chun

doi:10.1002/jctb.6828

Cited by 22 publications

(8 citation statements)

References 103 publications

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“…Therefore, the ENM is very suitable for MD due to its high porosity and connected pores [ 107 , 108 , 109 , 110 ]. In the past few years, MD has drawn increasing interest from the industries of liquid pharmaceutical concentration, fruit juice manufacture, wastewater treatment, and seawater desalination [ 111 , 112 , 113 ].…”

Section: Technology For Routine Water Purification Based On Nanofiber...mentioning

confidence: 99%

Research Progress of Water Treatment Technology Based on Nanofiber Membranes

Liu

et al. 2023

Polymers

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In the field of water purification, membrane separation technology plays a significant role. Electrospinning has emerged as a primary method to produce nanofiber membranes due to its straightforward, low cost, functional diversity, and process controllability. It is possible to flexibly control the structural characteristics of electrospun nanofiber membranes as well as carry out various membrane material combinations to make full use of their various properties, including high porosity, high selectivity, and microporous permeability to obtain high-performance water treatment membranes. These water separation membranes can satisfy the fast and efficient purification requirements in different water purification applications due to their high filtration efficiency. The current research on water treatment membranes is still focused on creating high-permeability membranes with outstanding selectivity, remarkable antifouling performance, superior physical and chemical performance, and long-term stability. This paper reviewed the preparation methods and properties of electrospun nanofiber membranes for water treatment in various fields, including microfiltration, ultrafiltration, nanofiltration, reverse osmosis, forward osmosis, and other special applications. Lastly, various antifouling technologies and research progress of water treatment membranes were discussed, and the future development direction of electrospun nanofiber membranes for water treatment was also presented.

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Section: Technology For Routine Water Purification Based On Nanofiber...mentioning

confidence: 99%

Research Progress of Water Treatment Technology Based on Nanofiber Membranes

Liu

et al. 2023

Polymers

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“…To achieve stable and efficient convection in MD processes, ENMs with interconnected pore structures, high porosity, and adjustable pore sizes prove beneficial, allowing flexible tuning of layer thickness through sequential electrospinning (Figure 3c). [ 58 ] According to this feature, researchers studied the optimal thickness of nanofiber MD film. Optimization of the layer thickness can help to maximize the motion performance of the MD membrane, especially for direct‐contact MD, as transmembrane molecular and Knudsen diffusion domain is the primary resistance to water transport from the feed to the distillate streams.…”

Section: Enhancing Directional Mass Transport Through Enms Involving ...mentioning

confidence: 99%

Beyond Symmetry: Exploring Asymmetric Electrospun Nanofiber Membranes for Liquid Separation

Lu,

Wang,

et al. 2023

Adv Funct Materials

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Composite membranes with asymmetric traits have gained attention in liquid separation, featuring gradient chemical and physical attributes that align or oppose mass transfer direction. Chemically asymmetric configurations harness internal driving forces to heighten separation efficiency, rendering them an appealing option for heightened separation efficiency and fouling prevention. Concurrently, the internal hierarchical structure differences within composite membranes—such as fiber‐based structural adjustments and the gradient density of functional layers—yield the dual benefits of effective liquid repelling and heightened transport efficiency. Unlike conventional phase‐change methods, electrospinning technology possesses advantages in constructing and governing composite fibrous membrane materials with asymmetric chemistry and hierarchical structures, driven by its adaptable stacking methodologies. Notably, the inherent pore structure of electrospun nanofibrous membranes emerges as a proven solution for minimizing transport resistance. In recent times, interest has surged in electrospun nanofibrous membranes endowed with internal asymmetric properties. However, the spotlight has predominantly graced Janus membranes, spotlighting opposite wettability on different sides, leaving other facets of asymmetric membrane enhancement somewhat underexplored. This comprehensive work unveils recent strides in design, fabrication, facilitated transport mechanisms, and real‐world liquid separation applications, all under the aegis of electrospun nanofiber membranes, each endowed with distinct asymmetric properties.

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“…[ 43e ] Due to the interconnected open structure, the pore size and porosity of the ENMs are much larger than those of membranes prepared by phase inversion, leading to the enhancement of MD behavior. [ 46g,58a,84 ]…”

Section: Performance Of Enhanced Hydrophobic Membranesmentioning

confidence: 99%

Enhanced Anti‐Wetting Methods of Hydrophobic Membrane for Membrane Distillation

Zhang

Zhao

2023

Advanced Science

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Increasing issues of hydrophobic membrane wetting occur in the membrane distillation (MD) process, stimulating the research on enhanced anti‐wetting methods for membrane materials. In recent years, surface structural construction (i.e., constructing reentrant‐like structures), surface chemical modification (i.e., coating organofluorides), and their combination have significantly improved the anti‐wetting properties of the hydrophobic membranes. Besides, these methods change the MD performance (i.e., increased/decreased vapor flux and increased salt rejection). This review first introduces the characterization parameters of wettability and the fundamental principles of membrane surface wetting. Then it summarizes the enhanced anti‐wetting methods, the related principles, and most importantly, the anti‐wetting properties of the resultant membranes. Next, the MD performance of hydrophobic membranes prepared by different enhanced anti‐wetting methods is discussed in desalinating different feeds. Finally, facile and reproducible strategies are aspired for the robust MD membrane in the future.

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High‐flux strategy for electrospun nanofibers in membrane distillation to treat aquaculture wastewater: a review

Cited by 22 publications

References 103 publications

Research Progress of Water Treatment Technology Based on Nanofiber Membranes

Research Progress of Water Treatment Technology Based on Nanofiber Membranes

Beyond Symmetry: Exploring Asymmetric Electrospun Nanofiber Membranes for Liquid Separation

Enhanced Anti‐Wetting Methods of Hydrophobic Membrane for Membrane Distillation

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