Durable superhydrophobic polyvinylidene fluoride membranes via facile spray-coating for effective membrane distillation

Jiuyang Lin; Jiale Du; Shuangling Xie; Fan Yu; Shengqiong Fang; Zhongsen Yan; Xiaocheng Lin; Dong Zou; Ming Xie; Wenyuan Ye

doi:10.1016/j.desal.2022.115925

Durable superhydrophobic polyvinylidene fluoride membranes via facile spray-coating for effective membrane distillation

Jiuyang Lin, Jiale Du, Shuangling Xie, Fan Yu, Shengqiong Fang, Zhongsen Yan, Xiaocheng Lin, Dong Zou, Ming Xie, Wenyuan Ye

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Abstract

Membrane wetting and fouling substantially limits application and deployment of membrane distillation process. Designing high-performance superhydrophobic membranes offers an effective solution to solve the challenge. In this work, a highly durable superhydrophobic surface (water contact angle of 170.8 ± 1.3°) was constructed via a facile and rapid spray-coating of extremely hydrophobic SiO₂ nanoparticles onto a porous polyvinylidene fluoride (PVDF) substrate for membrane distillation. The superhydrophobic membrane coated by fluorinated SiO₂ nanoparticles exhibited a superior physicochemical stability in a wide range of extreme environments (i.e., NaOH, HCl, hot water, rust water, humic acid solution, ultrasonication, and high-speed water scouring). During 8-h continuous membrane distillation desalination experiment, the coated superhydrophobic membrane experienced a consistently stable water vapor flux (ca. 19.1 kg·m⁻²·h⁻¹) and desalination efficiency (99.99 %). Additionally, such a stable superhydrophobicity endowed the spray-coated PVDF membrane to overcome membrane wetting and fouling during membrane distillation of highly saline solutions containing foulants (i.e., humic acid and rust). Results reported in this study provides a useful concept and strategy in facile construction of robust superhydrophobic membranes via spray-coating for effective membrane distillation.

Original language	English
Article number	115925
Journal	Desalination
Volume	538
Early online date	24 Jun 2022
DOIs	https://doi.org/10.1016/j.desal.2022.115925
Publication status	Published - 15 Sept 2022

Bibliographical note

Funding Information:
J. Lin, D. Zou and W. Ye would like to thank the funding support from the Natural Science Foundation of Fujian Province (Grant No.: 2021J01628 ), Natural Science Foundation of Jiangsu Province ( SBK2022041812 ; Grant No.: BK20220492 ) and Fujian Provincial Department of Science and Technology (Grant No.: 2019Y0006 ). M. Xie also thanked financial support from the Royal Society ( IEC\NSFC\211021 ).

Keywords

Antifouling
Desalination
Fluorinated SiO nanoparticles
Membrane distillation
Spray-coating
Superhydrophobicity

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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10.1016/j.desal.2022.115925

Manuscript 2022-6-1_MD SprayAccepted author manuscript, 5.44 MBLicence: CC BY-NC-ND

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title = "Durable superhydrophobic polyvinylidene fluoride membranes via facile spray-coating for effective membrane distillation",

abstract = "Membrane wetting and fouling substantially limits application and deployment of membrane distillation process. Designing high-performance superhydrophobic membranes offers an effective solution to solve the challenge. In this work, a highly durable superhydrophobic surface (water contact angle of 170.8 ± 1.3°) was constructed via a facile and rapid spray-coating of extremely hydrophobic SiO2 nanoparticles onto a porous polyvinylidene fluoride (PVDF) substrate for membrane distillation. The superhydrophobic membrane coated by fluorinated SiO2 nanoparticles exhibited a superior physicochemical stability in a wide range of extreme environments (i.e., NaOH, HCl, hot water, rust water, humic acid solution, ultrasonication, and high-speed water scouring). During 8-h continuous membrane distillation desalination experiment, the coated superhydrophobic membrane experienced a consistently stable water vapor flux (ca. 19.1 kg·m−2·h−1) and desalination efficiency (99.99 %). Additionally, such a stable superhydrophobicity endowed the spray-coated PVDF membrane to overcome membrane wetting and fouling during membrane distillation of highly saline solutions containing foulants (i.e., humic acid and rust). Results reported in this study provides a useful concept and strategy in facile construction of robust superhydrophobic membranes via spray-coating for effective membrane distillation.",

keywords = "Antifouling, Desalination, Fluorinated SiO nanoparticles, Membrane distillation, Spray-coating, Superhydrophobicity",

author = "Jiuyang Lin and Jiale Du and Shuangling Xie and Fan Yu and Shengqiong Fang and Zhongsen Yan and Xiaocheng Lin and Dong Zou and Ming Xie and Wenyuan Ye",

note = "Funding Information: J. Lin, D. Zou and W. Ye would like to thank the funding support from the Natural Science Foundation of Fujian Province (Grant No.: 2021J01628 ), Natural Science Foundation of Jiangsu Province ( SBK2022041812 ; Grant No.: BK20220492 ) and Fujian Provincial Department of Science and Technology (Grant No.: 2019Y0006 ). M. Xie also thanked financial support from the Royal Society ( IEC\NSFC\211021 ). ",

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doi = "10.1016/j.desal.2022.115925",

language = "English",

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T1 - Durable superhydrophobic polyvinylidene fluoride membranes via facile spray-coating for effective membrane distillation

AU - Lin, Jiuyang

AU - Du, Jiale

AU - Xie, Shuangling

AU - Yu, Fan

AU - Fang, Shengqiong

AU - Yan, Zhongsen

AU - Lin, Xiaocheng

AU - Zou, Dong

AU - Xie, Ming

AU - Ye, Wenyuan

N1 - Funding Information: J. Lin, D. Zou and W. Ye would like to thank the funding support from the Natural Science Foundation of Fujian Province (Grant No.: 2021J01628 ), Natural Science Foundation of Jiangsu Province ( SBK2022041812 ; Grant No.: BK20220492 ) and Fujian Provincial Department of Science and Technology (Grant No.: 2019Y0006 ). M. Xie also thanked financial support from the Royal Society ( IEC\NSFC\211021 ).

PY - 2022/9/15

Y1 - 2022/9/15

N2 - Membrane wetting and fouling substantially limits application and deployment of membrane distillation process. Designing high-performance superhydrophobic membranes offers an effective solution to solve the challenge. In this work, a highly durable superhydrophobic surface (water contact angle of 170.8 ± 1.3°) was constructed via a facile and rapid spray-coating of extremely hydrophobic SiO2 nanoparticles onto a porous polyvinylidene fluoride (PVDF) substrate for membrane distillation. The superhydrophobic membrane coated by fluorinated SiO2 nanoparticles exhibited a superior physicochemical stability in a wide range of extreme environments (i.e., NaOH, HCl, hot water, rust water, humic acid solution, ultrasonication, and high-speed water scouring). During 8-h continuous membrane distillation desalination experiment, the coated superhydrophobic membrane experienced a consistently stable water vapor flux (ca. 19.1 kg·m−2·h−1) and desalination efficiency (99.99 %). Additionally, such a stable superhydrophobicity endowed the spray-coated PVDF membrane to overcome membrane wetting and fouling during membrane distillation of highly saline solutions containing foulants (i.e., humic acid and rust). Results reported in this study provides a useful concept and strategy in facile construction of robust superhydrophobic membranes via spray-coating for effective membrane distillation.

AB - Membrane wetting and fouling substantially limits application and deployment of membrane distillation process. Designing high-performance superhydrophobic membranes offers an effective solution to solve the challenge. In this work, a highly durable superhydrophobic surface (water contact angle of 170.8 ± 1.3°) was constructed via a facile and rapid spray-coating of extremely hydrophobic SiO2 nanoparticles onto a porous polyvinylidene fluoride (PVDF) substrate for membrane distillation. The superhydrophobic membrane coated by fluorinated SiO2 nanoparticles exhibited a superior physicochemical stability in a wide range of extreme environments (i.e., NaOH, HCl, hot water, rust water, humic acid solution, ultrasonication, and high-speed water scouring). During 8-h continuous membrane distillation desalination experiment, the coated superhydrophobic membrane experienced a consistently stable water vapor flux (ca. 19.1 kg·m−2·h−1) and desalination efficiency (99.99 %). Additionally, such a stable superhydrophobicity endowed the spray-coated PVDF membrane to overcome membrane wetting and fouling during membrane distillation of highly saline solutions containing foulants (i.e., humic acid and rust). Results reported in this study provides a useful concept and strategy in facile construction of robust superhydrophobic membranes via spray-coating for effective membrane distillation.

KW - Antifouling

KW - Desalination

KW - Fluorinated SiO nanoparticles

KW - Membrane distillation

KW - Spray-coating

KW - Superhydrophobicity

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DO - 10.1016/j.desal.2022.115925

M3 - Article

AN - SCOPUS:85132753484

SN - 0011-9164

VL - 538

JO - Desalination

JF - Desalination

M1 - 115925

ER -

Durable superhydrophobic polyvinylidene fluoride membranes via facile spray-coating for effective membrane distillation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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