Nanoparticle-free and self-healing amphiphobic membrane for anti-surfactant-wetting membrane distillation

Lu, Chun; Su, Chunlei; Cao, Hongbin; Horseman, Thomas; Duan, Feng; Li, Yuping

doi:10.1016/j.jes.2020.04.044

Cited by 15 publications

(11 citation statements)

References 50 publications

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“…The synthesis process of F-POSS was according to previous work as displayed in Figure S2. − The all-polymer and self-roughened superhydrophobic PVDF FM was prepared as follows. First, the PVDF powder (6.60 g) and F-POSS powder (0.66 g) were simultaneously added to DMAc/LiCl hybrid solution (53.4 g) with vigorous stirring at 80 °C for 3 h and then stirring at room temperature overnight.…”

Section: Materials and Methodsmentioning

confidence: 99%

All-Polymer and Self-Roughened Superhydrophobic PVDF Fibrous Membranes for Stably Concentrating Seawater by Membrane Distillation

Xue

Tan

Zhu

2021

ACS Appl. Mater. Interfaces

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Novel specially wettable membranes have been attracting significant attention for durable membrane distillation (MD). However, constructing a superhydrophobic interface often has to undergo complex modification procedures including roughness construction and hydrophobic modification. Herein, all-polymer and self-roughened superhydrophobic poly(vinylidene fluoride) fibrous membranes (PVDF FMs) with robustly stable pores were successfully constructed via electrospinning of fluorinated polyhedral oligomeric silsesquioxanes/PVDF (F-POSS/PVDF) emulsion solution in combination with hot-pressing. The comparative experiment reveals that proper hot-pressing, including adequate temperature and pressure, can help improve membrane pore stability by welding the intersecting fibers and increase the membrane surface hydrophobicity by transferring the inner fluorine chains to the outer fiber surface, simultaneously advancing membrane scaling and fouling resistance. Nevertheless, excessive temperature or pressure will destroy the interconnected pores and surface wettability of the PVDF FM. Significantly, the hot-pressing-treated F-POSS/PVDF FM shows a high water recovery (∼90%) and robust stability after five rounds of the concentration process toward concentrating natural seawater as a target. Thus, the all-polymer and self-roughened superhydrophobic PVDF FMs constructed via electrospinning combined with the thermal treatment have potential applications in concentrating hypersaline brines, which make up for the other membrane technology, including reverse osmosis and nanofiltration technologies that failed to concentrate hypersaline solutions.

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Section: Materials and Methodsmentioning

confidence: 99%

All-Polymer and Self-Roughened Superhydrophobic PVDF Fibrous Membranes for Stably Concentrating Seawater by Membrane Distillation

Xue

Tan

Zhu

2021

ACS Appl. Mater. Interfaces

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“…[ 186,187 ] However, the mechanical properties of materials developed with covalent bonds often deteriorate due to the increase in chain mobility. [ 188 ]…”

Section: Various Properties Of Superhydrophobic Materials Achieved Th...mentioning

confidence: 99%

“…Reproduced with permission. [ 188 ] Copyright 2020, The Research Center for Eco‐Environmental Sciences, Chinese Academy of Sciences. c)The first reported self‐healing materials which can heal the superhydrophobicity of the coatings after is being decomposed or scratches on the primary top layer like nature plants.…”

Section: Various Properties Of Superhydrophobic Materials Achieved Th...mentioning

confidence: 99%

“…In 2020, Lu et al. [ 188 ] developed a nanofiber amphiphobic surface which based on the ultralow surface energy fluorinated polyhedral oligomeric silsesquioxanes (F‐POSS) through electrospinning and post‐thermal treatment. Due to the thermal‐induced movement and rotation of F‐POSS, the membrane exhibits high chemical stability and abrasion stability as well as self‐healing ability.…”

Section: Various Properties Of Superhydrophobic Materials Achieved Th...mentioning

confidence: 99%

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Biomimetic Superhydrophobic Materials Construct from Binary Structure: A Review on Design, Properties, and Applications

Guo

Liu

2022

Adv Materials Inter

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“…5,6 As a form of high-value utilization, membrane treatment has become a wide public concern over the recent years. [7][8][9] Clean water can be obtained and nutrients in biogas slurry can be enriched through membrane treatment. However, the composition of biogas slurry is complex and the content of suspended solids is too high.…”

Section: Introductionmentioning

confidence: 99%

Filtration with cornstalks as a pre-treatment process to control membrane fouling in the concentration of biogas slurry: performance, mechanism and economic analysis

Zhao

et al. 2022

Environ. Sci.: Water Res. Technol.

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Nanoparticle-free and self-healing amphiphobic membrane for anti-surfactant-wetting membrane distillation

Cited by 15 publications

References 50 publications

All-Polymer and Self-Roughened Superhydrophobic PVDF Fibrous Membranes for Stably Concentrating Seawater by Membrane Distillation

All-Polymer and Self-Roughened Superhydrophobic PVDF Fibrous Membranes for Stably Concentrating Seawater by Membrane Distillation

Biomimetic Superhydrophobic Materials Construct from Binary Structure: A Review on Design, Properties, and Applications

Filtration with cornstalks as a pre-treatment process to control membrane fouling in the concentration of biogas slurry: performance, mechanism and economic analysis

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