Facile preparation of durable superhydrophobic-superoleophilic mesh using simple chemical oxidation for oil-water separation under harsh conditions

Peng, Fang; Huang, Liu; Pan, Wenfeng; Song, Wei; Xu, Feng; Song, Jinlong; Xing, Yingjie

doi:10.1016/j.colsurfa.2021.126777

Cited by 24 publications

(4 citation statements)

References 60 publications

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“…Overall, it is concluded that to attain the significant turbulent DR, both the CAH and roughness at higher pressure must be minimized. The reformed surfaces demonstrated high self‐healing ability, chemical stability, and superhydrophobicity 67. Chemically prepared superhydrophobic surfaces with uniformly distributed ridges can minimize the frictional force up to 50 % 68.…”

Section: Superhydrophobic Surface (Shs)mentioning

confidence: 99%

Passive Drag Reduction Technologies

Kouser,

Zulfiqar,

Misbah

et al. 2023

ChemBioEng Reviews

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The developments and involved factors of mature passive drag reduction technologies, i.e., compliant coating, superhydrophobic surfaces, and epoxy coating, are reviewed. Alterations in critical Reynolds number are observed in the presence of passive drag reduction technologies. With the advancement in technology, numerical approaches are introduced to lower the cost and achieve better understanding of physical phenomena such as lowering energy, flow control, designing the surfaces of materials, and so on. Experimental results as well as numerical results are stated. The effects of factors like wetting, contact angle, contact angle hysteresis, roughness, pot life, and coating aging responsible for drag reduction are also briefly presented with numerical and experimental perspective analyses.

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Section: Superhydrophobic Surface (Shs)mentioning

confidence: 99%

Passive Drag Reduction Technologies

Kouser,

Zulfiqar,

Misbah

et al. 2023

ChemBioEng Reviews

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“…Oily wastewater produced by offshore oil spills and industry activities has severely damaged ecological environments and threatened human beings [1,2]. Conventional methods, including microbial degradation [3], oil containment fences [4] and in situ burning [5], are widely used but have serious shortcomings, such as complicated operation, high energy consumption, inefficiency and low selectivity.…”

Section: Introductionmentioning

confidence: 99%

Facile Preparation of Durable Superhydrophobic Coating by Liquid-Phase Deposition for Versatile Oil/Water Separation

et al. 2023

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Serious damage caused by oily wastewater makes the development of efficient superhydrophobic and superoleophilic materials for oil/water separation processes critical and urgent. Herein, durable superhydrophobic nanometer-scale TiO2 grains with low-surface-energy substance composite-modified materials were fabricated by using a cost-effective and facile synthesis method for the gravity-driven separation of oil/water mixtures under harsh conditions. Different substrates, such as sawdust, wheat straw, cotton, sponge and fabric, were applied for superhydrophobic surface preparation, and various low-surface-energy reagents could interact with deposited TiO2 nanoparticles, including cetylamine, dodecanethiol, stearic acid and HDTMS. The resultant materials showed superhydrophobic properties with a water contact angle (WCA) higher than 150.8°. The separation of various oil/water mixtures with high efficiency and purity was acquired by using the as-prepared sponge. More importantly, the coated sponge exhibited good resistance to various harsh environmental solutions. Moreover, its superhydrophobicity also remained even after 12 months of storage in air or 10 cycles of abrasion. The durable superhydrophobic coating prepared in this work could be practically used for the highly efficient separation of oil/water mixtures under various harsh conditions.

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“…Increasing water pollution from offshore oil spills and industry activities has threatened the human beings and environment seriously [ 1 , 2 ]. The traditional treatment methods, including microbial degradation, oil containment fences, and in situ burning, have disadvantages of low efficiency, low selectivity, and cumbersome operation.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Durable Superhydrophobic Surface for Versatile Oil/Water Separation Based on HDTMS Modified PPy/ZnO

et al. 2022

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Superhydrophobic materials have been widely applied in rapid removal and collection of oils from oil/water mixtures for increasing damage to environment and human beings caused by oil-contaminated wastewater and oil spills. Herein, superhydrophobic materials were fabricated by a novel polypyrrole (PPy)/ZnO coating followed by hexadecyltrimethoxysilane (HDTMS) modification for versatile oil/water separation with high environmental and excellent reusability. The prepared superhydrophobic surfaces exhibited water contact angle (WCA) greater than 150° and SA less than 5°. The superhydrophobic fabric could be applied for separation of heavy oil or light oil/water mixtures and emulsions with the separation efficiencies above 98%. The coated fabric also realized highly efficient separation with harsh environmental solutions, such as acid, alkali, salt, and hot water. The superhydrophobic fabric still remained, even after 80 cycles of separation and 12 months of storage in air, proving excellent durability. These novel superhydrophobic materials have indicated great development potentials for oil/water separation in practical applications.

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Facile preparation of durable superhydrophobic-superoleophilic mesh using simple chemical oxidation for oil-water separation under harsh conditions

Cited by 24 publications

References 60 publications

Passive Drag Reduction Technologies

Passive Drag Reduction Technologies

Facile Preparation of Durable Superhydrophobic Coating by Liquid-Phase Deposition for Versatile Oil/Water Separation

Fabrication of Durable Superhydrophobic Surface for Versatile Oil/Water Separation Based on HDTMS Modified PPy/ZnO

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