A Review on Oil/Water Mixture Separation Material

Zhang, Ning; Qi, Yunping; Zhang, Yana; Luo, Jialiang; Cui, Ping; Jiang, Wei

doi:10.1021/acs.iecr.0c02524

Cited by 147 publications

(61 citation statements)

References 215 publications

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“…As a result, hydrophobicity is reduced. Furthermore, the sponge modified with solid particles tends to show a decrease in oil adsorption capacity due to the increase of the sponge density to some extent, which indicates the contact angle decrease (Zhang et al 2020a(Zhang et al , 2020b. The result was consistent with the SEM.…”

Section: Effect Of Tbot Concentration On the Contact Angles Of Ms/tio 2 Spongesupporting

confidence: 82%

Facile synthesis of superhydrophobic MS/TiO2/PDMS sponge for efficient oil–water separation

Yang

Jia

et al. 2021

Water Science and Technology

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In order to obtain a kind of superhydrophobic sponge with high oil and water selectivity, the MS/TiO2/PDMS sponge were prepared via a two-step hydrophobic fabrication based on the melamine sponge (MS), tetrabutyl titanate (TBOT) and polydimethylsiloxane (PDMS). The effects of modification time, the concentrations of TBOT and PDMS on the properties of the MS/TiO2/PDMS sponge were studied, and the separation mechanism was also discussed based on the interaction between the oil and the surface of the MS/TiO2/PDMS sponge. The results suggest that under optimal conditions, the MS/TiO2/PDMS sponge show superhydrophobicity. The contact angle and adsorption capacity for oil of the MS/TiO2/PDMS sponge are 149.2° and 98.5 g·g−1, respectively, and they can be recycled about 25 cycles after oil-water separation test. This study aims at preparing a new composite material with high oil-water selectivity, which lays a good foundation for the development and research of new oil adsorbent.

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Section: Effect Of Tbot Concentration On the Contact Angles Of Ms/tio 2 Spongesupporting

confidence: 82%

Facile synthesis of superhydrophobic MS/TiO2/PDMS sponge for efficient oil–water separation

Yang

Jia

et al. 2021

Water Science and Technology

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“…Despite the extraordinary advantages of nanocellulose and aerogels, pure nanocellulose typically suffers from very poor hydrophobicity in addition to inferior mechanical properties [ 13 ]. Nanocellulose aerogels are not suitable in their pure form for any water treatment application, due to their high hydrophilicity and poor mechanical stability underwater.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Modification Strategies of Nanocellulose-Based Aerogels for Oil Absorption Application

et al. 2022

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Oil spills and oily wastewater have become a major environmental problem in recent years, directly impacting the environment and biodiversity. Several techniques have been developed to solve this problem, including biological degradation, chemicals, controlled burning, physical absorption and membrane separation. Recently, biopolymeric aerogels have been proposed as a green solution for this problem, and they possess superior selective oil absorption capacity compared with other approaches. Several modification strategies have been applied to nanocellulose-based aerogel to enhance its poor hydrophobicity, increase its oil absorption capacity, improve its selectivity of oils and make it a compressible and elastic magnetically responsive aerogel, which will ease its recovery after use. This review presents an introduction to nanocellulose-based aerogel and its fabrication approaches. Different applications of nanocellulose aerogel in environmental, medical and industrial fields are presented. Different strategies for the modification of nanocellulose-based aerogel are critically discussed in this review, presenting the most recent works in terms of enhancing the aerogel performance in oil absorption in addition to the potential of these materials in near future.

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“…Superhydrophobic surfaces possessing water contact angle (WCA) greater than 150°have received significant attention and research to mitigate environmental issues caused by accidental oil spills, oily waste water originating from textile, petrochemical and metallurgical industries (Ma et al 2016;Zhang et al 2020b). Variety of substrates like sponges (Peng et al 2019), porous ceramics (Dong et al 2019a), metallic meshes (Kang et al 2017) and textiles (Sharma et al 2020) with superhydrophobicity have been investigated towards oil-water separation after suitable surface modification.…”

Section: Introductionmentioning

confidence: 99%

Fluorine free TiO2/cyanate ester coated cotton fabric with low surface free energy and rough surface for durable oil–water separation

et al. 2021

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Low cost superhydrophobic cotton fabric was developed using TiO 2 /cyanate ester coating for the first time. The TiO 2 /cyanate ester coated cotton fabric displayed superhydrophobic behaviour with water contact angle of 158°, sliding contact angle of 8°a nd surface free energy of 18.0 mN/m 2 . Besides, the TiO 2 /cyanate ester coated cotton fabric also possesses excellent laundry durability as well as stability against acid, alkali salt solutions and mechanical abrasion. Consequently, the TiO 2 /cyanate ester coated cotton also delivered superior oil-water separation efficiency with different types of oil/water mixtures that includes engine oil/water, waste engine oil/water, petrol/water and diesel/water. The TiO 2 /cyanate ester coated cotton fabric shows separation efficiency as high as 98% with flux value of 7200 L/m 2 h for petrol/water mixture. Further, both cyanate ester and TiO 2 /cyanate ester coated cotton fabric delivers ultra-high UV-resistant ability with Ultraviolet Protection Factor value as high as 500 ? . Hence, it is anticipated that the present approach of using cyanate ester can be widely explored further to construct multifunctional fabrics towards excellent self-cleaning as well as oil/water separation with UV and chemical robustness.

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A Review on Oil/Water Mixture Separation Material

Cited by 147 publications

References 215 publications

Facile synthesis of superhydrophobic MS/TiO2/PDMS sponge for efficient oil–water separation

Facile synthesis of superhydrophobic MS/TiO2/PDMS sponge for efficient oil–water separation

Recent Progress in Modification Strategies of Nanocellulose-Based Aerogels for Oil Absorption Application

Fluorine free TiO2/cyanate ester coated cotton fabric with low surface free energy and rough surface for durable oil–water separation

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