A facile preparation of superhydrophobic halloysite-based meshes for efficient oil–water separation

Guo, Danyi; Chen, Jiahui; Hou, Kun; Xu, Shanhui; Cheng, Jiang; Wen, Xiufang; Wang, Shuangfeng; Huang, Can; Pi, Pihui

doi:10.1016/j.clay.2018.01.034

Cited by 39 publications

(18 citation statements)

References 28 publications

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“…The peak at 2904 cm −1 represents the (-OH) hydroxyl group. Peaks at 1031 cm −1 and 1059 cm −1 represent the -SiO functional group, which represents the hydrophilic head of HDTMS [15,16]. The peak at 666 cm −1 represents the -CH functional group, which represents the hydrophobic tail of HDTMS [17].…”

Section: Resultsmentioning

confidence: 99%

Development of polyurethane-based superhydrophobic coatings on steel surfaces

Meena

Tudu

Kumar

et al. 2020

Phil. Trans. R. Soc. A.

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In this study, a superhydrophobic coating on steel surface has been developed with polyurethane, SiO 2 nanoparticles and hexadecyltrimethoxysilane by using a spin-coating technique. Characterization of the coated steel surface was done by using the contact angle measurement technique, scanning electron microscopy and Fourier transform infrared spectroscopy. With a water tilt angle of 4° ± 2° and static contact angle of 165° ± 5°, the coated surface shows a superhydrophobic and self-cleaning nature. Chemical, thermal, mechanical stability tests and droplet dynamic studies were done to evaluate performance of the coating. Excellent self-cleaning, anti-fogging and anti-corrosion properties of coated steel surfaces make them ideal for industrial applications. This article is part of the theme issue ‘Bioinspired materials and surfaces for green science and technology (part 3)’.

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Section: Resultsmentioning

confidence: 99%

Development of polyurethane-based superhydrophobic coatings on steel surfaces

Meena

Tudu

Kumar

et al. 2020

Phil. Trans. R. Soc. A.

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“…The recovered sponge Figure 2. (a) CNTs/PS@AuNPs composite membranes [35] ; (b) ODTMS-HNTs on a stainless-steel mesh [41] ; (c) boron nitride nanotube (BNNT) coated networks [44] .…”

Section: Nanotubes-based Nanomaterialsmentioning

confidence: 99%

“…Thus, they were widely used in catalytic, clinical, electronic, and separation fields. Guo et al [41] prepared a superhydrophobic stainless steel mesh by spraying epoxy resin and octadecyltrimethoxysilane-modified HNTs on a stainless-steel mesh, which exhibited a separation efficiency of more than 98% for oil-water mixtures. Zeng et al fabricated a novel oil-water separation membrane by APTES-modified HNTs, which exhibited excellent oil barrier properties.…”

Section: Nanotubes-based Nanomaterialsmentioning

confidence: 99%

Recent advances in novel functional nanomaterials-based oil/water separation techniques

Li¹,

Ji²,

Li³

et al. 2021

E3S Web Conf.

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The increasing amount of oily wastewater discharges caused major challenges for current environmental issues, such as oil-water purification and separation [1-6]. Thus, the development of new functional materials for the efficient treatment of oil-water is imperative [7-11]. This paper reviewed the recently developed oil-water separation technologies, which were based on novel functional nanomaterials, and presented representative works in detail. Finally, the challenges and future research directions of this area were briefly discussed.

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“…39 Guo et al used hexadecyltrimethoxysilane to modify the HNTs and then sprayed on the stainless steel mesh for efficient oil/water separation. 40 Although these HNTs-based filtration materials could realize the oil/water separation, the oil/water mixtures must be pre-collected before filtration, so it is difficult to realize the direct and in situ removal of spilled oils from the water. 1,[41][42][43] Therefore, it is highly required to develop a robust and highly efficient oil/water separation system with low cost for real applications, such as the separation of oil from oily water caused by oil leakage or the discharge of oil/water mixtures by domestic and industrial consumers.…”

Section: Introductionmentioning

confidence: 99%

Halloysite nanotube‐based superhydrophobic foam for highly efficient oil/water separation

et al. 2021

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Water pollution caused by petroleum and other organic compound spills has become a threat to biological and human safety. 1,2 In recent years, the materials for oil/water separation have been broadly explored. [3][4][5] Nature-inspired superwettable materials attracted lots of attention, which can selectively let oil or water pass through thus effectively separate oil and water. 6-10 Among them, the porous foam with hydrophobic and oleophilic properties can absorb and store organic compounds and repel water, thus achieving the highly efficient separation of oil/water mixtures. 11,12 Meanwhile, the cost of raw materials should be low to meet the requirements for mass production and applications.According to the Wenzel and Cassie models, the superhydrophobic property can be improved by increasing the surface roughness and reducing the surface energy. [13][14][15] Therefore, lots of organic compounds with low surface energy have been synthesized and employed for achieving the superhydrophobic property. 16 Among them, polyvinylidene fluoride (PVDF) has been widely used as the main building block in preparing the functional membranes for the oil/water separation, due to its chemical resistance, low surface energy (25 dynes/cm) as well as excellent mechanical properties. [17][18][19][20]

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A facile preparation of superhydrophobic halloysite-based meshes for efficient oil–water separation

Cited by 39 publications

References 28 publications

Development of polyurethane-based superhydrophobic coatings on steel surfaces

Development of polyurethane-based superhydrophobic coatings on steel surfaces

Recent advances in novel functional nanomaterials-based oil/water separation techniques

Halloysite nanotube‐based superhydrophobic foam for highly efficient oil/water separation

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