Amphiphobic surface modification of electrospun nanofibrous membranes for anti-wetting performance in membrane distillation

An, Xiaochan; Liu, Zhongyun; Hu, Yunxia

doi:10.1016/j.desal.2017.12.063

Cited by 103 publications

(32 citation statements)

References 46 publications

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“…When treating real produced water containing high concentrations of surfactant in the configuration of DCMD, while the commercial membrane suffered rapid wetting, the modified electrospun membranes had no wetting issues and maintained stable flux and 99.99% salt rejection. Alternately, coating 1H,1H,2H,2H-perfluorodecyltriethoxysilane followed by heat treatment could impart omniphobicity to PVDF-HFP nanofiber membranes (An et al 2018).…”

Section: Nanofibers For Wastewater Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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Materials of nanofibrous morphology and structure are attractive for solving environmental problems including water-related issues. In recent years, increasing interest is geared on the use of specially designed electrospun nanofibers for water/wastewater treatment applications. The nanofibers can be used in the form of nonwoven structures, as stand-alone membranes, as support layer or as a surface modification layer that enables added functionality to a composite material. Continuous research has been carried out in optimizing the nanofiber membrane design and structure by manipulating material, process and surrounding parameters in the electrospinning process. This chapter highlights the recent advances and developments on the potential and application of electrospun nanofibers for water/ wastewater treatment. Comprehensive discussion is presented here on various designs and structures of nanofibers and their applications to water-related treatment and the future prospects of such materials.

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Section: Nanofibers For Wastewater Treatmentmentioning

confidence: 99%

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Tijing

Yao

Ren

et al. 2018

Energy, Environment, and Sustainability

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show abstract

“…Therefore, the proposed omniphobic membrane has great potential to treat water containing high salinity and organic contaminants. An et al [165] fabricate an amphiphobic PVDF-co-HFP electrospun nanofibrous membrane with excellent anti-wetting properties for the MD process. They applied 1H,1H,2H,2H-perfluorodecyltriethoxysilane (FAS) to fluorinate PVDF-co-HFP fibers followed by a crosslinking process to form a network upon dealcoholization under thermal treatment.…”

Section: Novel Approaches To MD Technologymentioning

confidence: 99%

Water and Wastewater Treatment Systems by Novel Integrated Membrane Distillation (MD)

et al. 2019

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The scarcity of freshwater has been recognized as one of the main challenges people must overcome in the 21st century. The adoption of an environmentally friendly, cost-effective, and energy-efficient membrane distillation (MD) process can mitigate the pollution caused by industrial and domestic wastes. MD is a thermally driven process based on vapor–liquid equilibrium, in which the separation process takes place throughout a microporous hydrophobic membrane. The present paper offers a comprehensive review of the state-of-the-art MD technology covering the MD applications in wastewater treatment. In addition, the important and sophisticated recent advances in MD technology from the perspectives of membrane characteristics and preparation, membrane configurations, membrane wetting, fouling, and renewable heat sources have been presented and discussed.

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“…Interestingly, A robust superhydrophobic electrospun nanofibrous membrane can only be designed on the basis of the three criteria in Table 6. In addition, there are several important factors that must be considered, while fabricating antiwetting electrospun nanofibrous surfaces: (a) A combination of lower surface energy and hierarchical structure is equally important; (b) hydrophobic treatment of the polymeric nanofibrous mats must be consistent, and uniform; and (c) the interconnected pore structures should not be damaged during application [77,88].…”

Section: Electrospinning Technique For Membrane Fabricationmentioning

confidence: 99%

Review on Blueprint of Designing Anti-Wetting Polymeric Membrane Surfaces for Enhanced Membrane Distillation Performance

2019

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Recently, membrane distillation (MD) has emerged as a versatile technology for treating saline water and industrial wastewater. However, the long-term use of MD wets the polymeric membrane and prevents the membrane from working as a semi-permeable barrier. Currently, the concept of antiwetting interfaces has been utilized for reducing the wetting issue of MD. This review paper discusses the fundamentals and roles of surface energy and hierarchical structures on both the hydrophobic characteristics and wetting tolerance of MD membranes. Designing stable antiwetting interfaces with their basic working principle is illustrated with high scientific discussions. The capability of antiwetting surfaces in terms of their self-cleaning properties has also been demonstrated. This comprehensive review paper can be utilized as the fundamental basis for developing antiwetting surfaces to minimize fouling, as well as the wetting issue in the MD process.

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Amphiphobic surface modification of electrospun nanofibrous membranes for anti-wetting performance in membrane distillation

Cited by 103 publications

References 46 publications

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Nanofibers for Water and Wastewater Treatment: Recent Advances and Developments

Water and Wastewater Treatment Systems by Novel Integrated Membrane Distillation (MD)

Review on Blueprint of Designing Anti-Wetting Polymeric Membrane Surfaces for Enhanced Membrane Distillation Performance

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