Engineering omniphobic corrugated membranes for scaling mitigation in membrane distillation

Liu, Xiangjun; Chou, Shuren; Gu, Chuanyu; Shi, Minghao; You, Xiaofei; Liao, Yuan; Razaqpur, A. Ghani

doi:10.1016/j.memsci.2022.121130

Cited by 33 publications

(8 citation statements)

References 49 publications

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Section: Methods To Enhance Anti‐wetting Propertiesmentioning

confidence: 99%

“…[67] After fluorination, its WCA and OCA (oil CA) reach 160.8°± 2.3°and 154.3°± 1.9°, respectively. [67] Liao et al [68] prepared a millimeter-scaled corrugated (parallel and perpendicular modes) membrane covered with nanometerscaled SiNPs. The authors found that the perpendicular corrugation mode featured the best scaling resistance owing to the turbulent effect induced by the perpendicular feed flow on the corrugated patterns and the consequent alleviation of concentration polarization.…”

Section: Attaching Nanomaterialsmentioning

confidence: 99%

“…The authors found that the perpendicular corrugation mode featured the best scaling resistance owing to the turbulent effect induced by the perpendicular feed flow on the corrugated patterns and the consequent alleviation of concentration polarization. [68] As introduced in Section 3.2.2, another method of constructing a hierarchical reentrant-like structure is to attach nanomaterials to the ENMs (Figure 5c,d). Electrospinning combined with electrospraying is a common method.…”

Section: Attaching Nanomaterialsmentioning

confidence: 99%

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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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Section: Methods To Enhance Anti‐wetting Propertiesmentioning

confidence: 99%

Section: Attaching Nanomaterialsmentioning

confidence: 99%

Section: Attaching Nanomaterialsmentioning

confidence: 99%

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Enhanced Anti‐Wetting Methods of Hydrophobic Membrane for Membrane Distillation

Zhang

Zhao

2023

Advanced Science

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“…[212] Similarly, an antiscaling PVDF membrane was fabricated using Si NPs coating and fluorination, where the corrugated surface increased feed turbulence and suppressed temperature polarization to enable superior scaling prevention against a feed containing high salt. [213] Zinc oxide (ZnO) NPs possess excellent photocatalytic functions which makes them promising candidates for fabricating self-cleaning membranes against various foulants encountered in MD during wastewater treatment. This was explored with MD feed containing dye foulants by Huang et al where calcination of the zinc acetate precursor added to the PTFE nanofibers before electrospinning achieved a very uniform dispersion of ZnO NPs in the polymer matrix compared to the formation of agglomerates when ZnO NPs were added directly.…”

Section: Metal Oxidesmentioning

confidence: 99%

Section: Most Widely Used Nms For MD Membranesmentioning

confidence: 99%

Advancements in Nanoenabled Membrane Distillation for a Sustainable Water‐Energy‐Environment Nexus

Farid,

Kharraz,

Sun

et al. 2023

Advanced Materials

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The emergence of nano innovations in membrane distillation (MD) has garnered increasing scientific interest. This enabled the exploration of state‐of‐the‐art nano‐enabled MD membranes with desirable properties, which significantly improve the efficiency and reliability of the MD process and open up opportunities for achieving sustainable water‐energy‐environment (WEE) nexus. This comprehensive review provides broad coverage and in‐depth analysis of recent innovations in nano‐enabled MD membranes, focusing on their role in achieving desirable properties, such as strong liquid‐repellence, high resistance to scaling, fouling, and wetting, as well as efficient self‐heating and self‐cleaning functionalities. The recent developments in nano‐enhanced photothermal‐catalytic applications for water‐energy co‐generation within a single MD system are also discussed. Furthermore, we identify the bottlenecks that impede the scale‐up of nano‐enhanced MD membranes and propose a future roadmap for their sustainable commercialization. This holistic overview is expected to inspire future research and development efforts to fully harness the potential of nano‐enabled MD membranes to achieve sustainable integration of water, energy, and the environment.This article is protected by copyright. All rights reserved

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