One-pot synthesis of robust superhydrophobic, functionalized graphene/polyurethane sponge for effective continuous oil–water separation

Zhou, Shuai; Hao, Gazi; Zhou, Xiang; Jiang, Wei; Wang, Tianhe; Zhang, Ning; Yu, Liping

doi:10.1016/j.cej.2016.05.051

Cited by 229 publications

(93 citation statements)

References 30 publications

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“…These materials can particularly absorb oil and repel water, demonstrating also high oil absorption capacities. [2][3][4] Therefore, a large number of polymers have been treated as oil absorbents, such as foams, 5 resins, 6 sponges, 7 aerogels 8 etc. They are placed on the oil surface of water, where they only adsorb oil selectively, and can then be recycled.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic foam prepared from high internal phase emulsion templates stabilised by oyster shell powder for oil–water separation

Zhuang

Zeng

et al. 2019

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Superhydrophobic foam prepared from high internal phase emulsion templates stabilised by oyster shell powder for oil–water separation

Zhuang

Zeng

et al. 2019

RSC Adv.

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“…Therefore, in addition to the required antiabrasion ability, other mechanical properties of the coating and bulk membrane materials, such as tensile strength, flexibility, elongation, and toughness, are of very importance for stable oil–water separation. These can be examined by the previously mentioned stress–strain, stretching/deformation, bending, tape peeling, scratching, ultrasonication, and laundering tests …”

Section: Robust Superwettable Membranes For Oil–water Separationmentioning

confidence: 99%

Recent Advances in Robust Superwettable Membranes for Oil–Water Separation

Lin

Hong

2019

Adv Materials Inter

117

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Over the past decade, much progress has been made in the application of multifunctional membranes with special wettability for the separation of oil–water mixtures. This progress has been driven by frequent oil spill accidents and oily wastewater, which are enormous threats to the vulnerable aquatic environment. The design of permeable superwettable membranes for oil–water separation has been inspired by the development of highly wetting/nonwetting interfaces, but these membranes are susceptible to factors such as mechanical forces, chemical corrosion, biological fouling, and other environmental influences. Considering the complex and harsh environments that superwettable membranes must endure during the separation process, membrane durability against the loss of superwettability is critical in prolonging the life of an oil–water filtration system. Although significant advances in superwettable membranes have been made, the robustness issue remains challenging and has become a focus of many investigations. Covering nearly all publications concerning “robust, durable, usable, resistant, tolerant, or antifouling oil–water separation” published in the last five years, this work is intended as an introduction for new researchers wishing to create durable superwettable membranes for oil–water separation, as well as providing perspectives and guidance for future research in several logical directions.

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“…Since then, variouss ynthetic approaches have been introduced for developing different selectively oil-removing superhydrophobic monoliths-including aerogels [10][11][12][13][14][15] and sponges. [16][17][18][19][20][21][22][23] However,these reported materials are associatedw ith variousl imitations such as complicated synthetic procedures,poor tolerance to abrasive challenges, recyclability,u se of chemicals that has adversei mpact on health and environment, labile chemistry which limit their practical applicationsa tp ractically relevant severe and diverse settings. [24][25][26][27][28][29][30] The strategic modification of commercially available spongy substrates with essential physicala nd chemical param-eters that conferreds uperhydrophobicity,h as recently been utilized ford eveloping reusable and selective oil-absorbents.…”

Section: Introductionmentioning

confidence: 99%

A Scalable Chemical Approach for the Synthesis of a Highly Tolerant and Efficient Oil Absorbent

Shome

Maji

Rather

et al. 2019

Chemistry An Asian Journal

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In the past, bio-inspired extreme water repellent property has been strategicallye mbedded on commercially available sponges for developing selective oil absorbents. However,m ost of the reported materials lack physicala nd chemical durability,l imiting their applicabilitya tp ractically harsh settings.Herein, astable dispersion of polymeric nanocomplexes was exploited to achieve ac hemically reactive coating on the highly compressible melamine foam. As uperhydrophobic melamine foam (SMF) was achieved after post-covalent modification of the reactive coating through 1,4-conjugate addition reactiona ta mbient conditions. The durability of the embedded extreme water repellent property in the as-modified melamine foam has been elaborately demonstrated throughe xposing it to severe physical manipulations, chemically harsh aqueous media including pH 1, pH 12, surfactant contaminated water,r iver water,s eawater and prolonged UV irradiation. Thus, the highly tolerantS MF was utilized as an efficient oil absorbent wherein oils of varying densitiesc ould be selectively recovered from an oil/ water interface with high (e.g.,1 37 gg À1 for chloroform and 83 gg À1 for diesel) oil absorption capacity.M oreover,t he selectiveo il absorption capacity of the as-synthesized material remained unaffected at practically relevant severe chemical and physical settings,a nd the extreme water repellency of the material remained unaltered even after repetitive (at least 50 cycles) use for oil/water separation.

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One-pot synthesis of robust superhydrophobic, functionalized graphene/polyurethane sponge for effective continuous oil–water separation

Cited by 229 publications

References 30 publications

Superhydrophobic foam prepared from high internal phase emulsion templates stabilised by oyster shell powder for oil–water separation

Superhydrophobic foam prepared from high internal phase emulsion templates stabilised by oyster shell powder for oil–water separation

Recent Advances in Robust Superwettable Membranes for Oil–Water Separation

A Scalable Chemical Approach for the Synthesis of a Highly Tolerant and Efficient Oil Absorbent

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