Superhydrophobic/superoleophilic cotton-oil absorbent: preparation and its application in oil/water separation

Lv, Na; Wang, Xiaoli; Peng, Shitao; Luo, Lei; Zhou, Ran

doi:10.1039/c8ra05420g

Cited by 90 publications

(36 citation statements)

References 38 publications

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“…The coated fabrics showed superhydrophobic properties with a high-water contact angle of 154.1° and superoleophilic properties with an oil contact angle of 0°. Moreover, the coated fabrics maintained their superhydrophobicity even after ultrasonic treatment, as well as exposure to organic solutions and Lv et al [139] developed a superhydrophobic/superoleophilic cotton fabric specially as an oil absorbent with the help of TEOS. Figure 17 shows a schematic illustration of the fabrication process of SiO 2 particles on the surface of the modified cotton fiber via the sol-gel method.…”

Section: Oil and Water Separationsmentioning

confidence: 99%

“…(a-c) Fluorinated polymeric sol-gel incorporated fabric on hexane removal and (d-fd; e; f; a; b; c; ) chloroform with the help of water (Reproduced from [138], with kind permission of Wiley).Lv et al[139] developed a superhydrophobic/superoleophilic cotton fabric specially as an oil absorbent with the help of TEOS.Figure 17shows a schematic illustration of the fabrication process of SiO2 particles on the surface of the modified cotton fiber via the sol-gel method.…”

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confidence: 99%

“…Schematic illustration of the modification cotton fiber (Reproduced from[139], under Creative Commons Attribution 3.0 International License).…”

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confidence: 99%

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Progress in Sol-Gel Technology for the Coatings of Fabrics

et al. 2020

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The commercial availability of inorganic/organic precursors for sol-gel formulations is very high and increases day by day. In textile applications, the precursor-synthesized sol-gels along with functional chemicals can be deposited onto textile fabrics in one step by rolling, padding, dip-coating, spraying or spin coating. By using this technology, it is possible to provide fabrics with functional/multi-functional characteristics including flame retardant, anti-mosquito, water- repellent, oil-repellent, anti-bacterial, anti-wrinkle, ultraviolet (UV) protection and self-cleaning properties. These surface properties are discussed, describing the history, basic chemistry, factors affecting the sol-gel synthesis, progress in sol-gel technology along with various parameters controlling sol-gel technology. Additionally, this review deals with the recent progress of sol-gel technology in textiles in addressing fabric finishing, water repellent textiles, oil/water separation, flame retardant, UV protection and self-cleaning, self-sterilizing, wrinkle resistance, heat storage, photochromic and thermochromic color changes and the improvement of the durability and wear resistance properties.

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Section: Oil and Water Separationsmentioning

confidence: 99%

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confidence: 99%

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Progress in Sol-Gel Technology for the Coatings of Fabrics

et al. 2020

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“…According to its structure, the raw cotton is a heterogeneous material, which consists of three main components -the cotton fiber itself, the peel and the seed kernel [6]. Cotton fiber has a developed capillary-porous structure, which consists of cavities among fibrils, interfibrillar pores, fiber channels and pores with a diameter of several microns, so it is a hygroscopic material, and its natural humidity can exceed 12 %.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamics of Cotton Filtration Drying

Atamanyuk¹,

Gnativ²,

Кіндзера³

et al. 2020

ChChT

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The work deals with the results of using the cotton fiber as the purest and most natural cellulose, as well as a raw material for the production of various chemical products. The necessity of cotton fiber preparation for its use in the chemical industry and expediency of its drying via a filtration method has been substantiated. The geometrical parameters of individual cotton villi, physical and mechanical characteristics of the layer were experimentally investigated. Under the action of pressure drop the effect of the cotton fiber layer height on the porosity, equivalent diameter, through which the heat agent is filtered, the specific surface area and the pressure loss were analytically determined. The experimental results regarding the pressure loss in a layer of cotton fiber during filtration drying are presented from the standpoint of the internal problem of hydrodynamics. The results of heat agent filtration through a cotton layer at different weights and heights of the layer are presented as a functional dependence ΔP = f(υ 0), and changes in the layer porosity as ε = f(υ 0). The generalization of the experimental data is represented as a dimensionless complex Eu = f(Re), and the dependence of the hydraulic resistance coefficient as a function of the Reynolds number ξ = f(Re). The results obtained in a dimensionless form make it possible to predict the energy costs for creating a pressure drop (under the same hydrodynamic conditions) when designing a new drying equipment.

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“…The selection of adsorbent materials depends on many factors namely, availability of material, fabrication cost, material safety, high carbon or oxygen contents, surface area, surface charge density, oil uptake capacity, thermal stability, and mechanical stability. Generally, there are various types of materials are used for oil sorption such as synthetic polymers (e.g., polyurethane, polyethylene, and butyl rubber), naturals fiber materials which are mostly hydrophilic, corn stalk, baggage pitch, non‐woven wool, and cotton fibers . Inorganic minerals (exfoliated graphite, Zeolite, and carbon nanotubes) are also another category of such adsorbents.…”

Section: Introductionmentioning

confidence: 99%

Optimization of dosing and mixing time through fabrication of high internal phase emulsion (HIPE) polymerization based adsorbents for use in purification of oil in water contaminated wastewater

Soliman¹,

Naggar

El‐Din

et al. 2020

J of Applied Polymer Sci

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Disposal of oil‐contaminated wastewater is associated with serious environmental problems since it is drained in seawater or into the ground. These routes of disposal can dangerously affect the lives of both humans and aqua creatures. Therefore, this research study introduces the recovery of petroleum wastewater through the usage of polystyrene‐based adsorbents. High internal phase emulsion polymerization was the used methodology to provide the introduced structures where new approaches have been presented. Unlike the common, the influence of the fabrication parameters of polymeric adsorbents on the oil removal has been investigated. Particularly, different dosing and mixing times were utilized during the preparation stage. Their effect on the polymers surface properties and molecular weights were traced. The obtained adsorbents were subjected to the oil removal stage where optimization of synthesis conditions was taken place. Nearly 92% of the oil content (80 ppm) in the wastewater was removed using the optimized adsorbent. This adsorbent showed surface area of 28.8 m2/g and molecular weight equal 279,970 g/mol. It was acquired by applying 20 min as a dosing time and reaction time of 120 min.

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Superhydrophobic/superoleophilic cotton-oil absorbent: preparation and its application in oil/water separation

Abstract: A superhydrophobic and superoleophilic oil sorbent was prepared by attaching SiO2 particles onto a cotton fiber surface by a sol–gel method and subsequent octadecyltrichlorosilane modification.

Cited by 90 publications

References 38 publications

Progress in Sol-Gel Technology for the Coatings of Fabrics

Progress in Sol-Gel Technology for the Coatings of Fabrics

Hydrodynamics of Cotton Filtration Drying

Optimization of dosing and mixing time through fabrication of high internal phase emulsion (HIPE) polymerization based adsorbents for use in purification of oil in water contaminated wastewater

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