Nanostructured microporous polymer composite imprinted with superhydrophobic camphor soot, for emphatic oil–water separation

Mishra, Prashant; Balasubramanian, K.

doi:10.1039/c4ra07410f

Cited by 51 publications

(23 citation statements)

References 32 publications

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“…Among these, materials with extreme wettability such as superhydrophobicity–superoleophilicity and superoleophobicity‐under‐water have attracted considerable attention in the past decade . Extreme wettability materials were suggested to realize oil‐water separation by two main strategies, namely “filtering oil” and “absorbing oil.” In the former, various meshes and porous materials, membranes, and filters have been proposed. Due to the hydrophobicity yet oleophilicity, these materials can achieve oil‐water separation quite fast by selectively filtering oil when the oil‐water mixture is pouring on.…”

Section: Introductionmentioning

confidence: 99%

3D Printing as Feasible Platform for On‐Site Building Oil‐Skimmer for Oil Collection from Spills

Yan

et al. 2016

Adv Materials Inter

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on. However, these materials are not suitable for in situ oil spill cleanup since most oils are floating on water due to their lower density. To realize oil spill cleanup, the first step is still surface oil collection, which remains a challenge, too.The later strategy, "absorbing oil," is desirable for situ oil spill cleanup, which proposes porous materials with superhydrophobicity and oleophilicity to absorb the oil from the water surface to achieve the oil spill cleanup. Various porous materials, such as calcium carbonate powder, [36] polydivinylbenzene porous materials, [25] PDMS sponge, [37] PU sponge, [38] melamine sponge, [39] aerogels, [40] and carbonbased sponges, [41,42] have been employed recently. The popular commercial polypropylene felts in oil/water separation area work in this manner. However, since the collected oil is stored only in the inside pores, the absorption capacity is quite low, resulting in relatively low separation efficiency. Some very recent ultralight porous sponges such as carbon nanotube sponges and graphene sponges exhibit higher absorption capacity, [41][42][43][44] however they are fabricated with either expensive materials or involve complicated processes, making their large scale application strongly limited. Moreover, sometimes the stability of the collected oil in the absorbent materials under sea conditions including waves and storms is not high, which may cause secondary pollution, and another shortcoming is that extra squeezing or compressing is further necessary to complete the oil collection from spill. [45] To date, how to collect the floating oil in fast, facile, cost-efficient, and in situ way from oil spills on seas still remains a highly challenging topic. Very recently barrel-shaped oil-skimmer with superhydrophobicoleophilic mesh mounted on a barrel has been employed to address the challenge, [46] but that still has limitation to be used in on-site design and fabrication way that might be necessary for spill cleanup on sea to save time, space.Rapid, on-site, convenient, incorporate, and stable collection of the spilt oil on sea are critical requirements for such kinds of materials because these features decide if the materials can get remarkable commercial application after suffering harsh marine environment tests. In an attempt to satisfy these requirements, new design strategy must be introduced. Especially, in the vast sea, the spilt oil always freely flows with the sea waves assisted by monsoon current. Besides, under heavily sea beaten, it is easily to encounter a secondary oil leakage. At this point, two key requirements must be preferentially Oil removal and collection from spills have been addressed by various techniques, but still remain a challenging topic for practical application because of high cost, low oil absorption capacity, and weak oil keeping stability. To address the challenge, an oil-skimmer composed of 3D printed mesh cap treated with low surface energy materials and commercial vessel has been developed. The good water repellency of the 3...

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Section: Introductionmentioning

confidence: 99%

3D Printing as Feasible Platform for On‐Site Building Oil‐Skimmer for Oil Collection from Spills

Yan

et al. 2016

Adv Materials Inter

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“…Impressive examples such as the Torrey Canyon and the Bohai Bay spill accidents, not only induced serious environment pollution, but also threatened the ecological system. [5][6][7][8][9][10][11][12][13][14] Up to now, various superhydrophobic porous materials have been prepared via various chemical and physical strategies. 4 Porous materials, including fabrics, membranes, meshes and sponges, with superhydrophobicity have believed to be promising in oil/water separation.…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of robust superhydrophobic porous materials and their application in oil/water separation

et al. 2015

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Abstract：Utilizing superhydrophobic porous materials in oil/water separation has attracting increasing research interest, however, most of these materials are usually complicated to fabricate or easily lose their functions in harsh circumstance. In this study, dispersion of poly [(3,3,3-trifluoropropyl)methylsiloxane] (PTFPMS) micro-nano aggregations in acetone/water was facially prepared via a simple phase separation method. The aggregations can be easily coated on the skeletons of various 2D and 3D porous substrates, endowing the porous materials superhydrophobicity. The prepared superhydrophobic materials show excellent resistance to chemical erosion, mechanical abrasion, and high temperature (up to 400 ˚C). The robust superhydrophobicity promise the application of the resultant porous materials in the harsh environment, and examples of using these superhydrophobic porous materials to separate oil/water mixtures have been demonstrated. This simple and universal method is suitable for large-scale preparation of porous materials with robust superhydrophobicity.

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“…Recently, porous materials with superhydrophobicity have aroused broad attention because of their potential application in oil/water separation fields . Oil can pass through the porous structures of the materials while water is completely repelled by the materials.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, porous materials with superhydrophobicity have aroused broad attention because of their potential application in oil/water separation fields. 14,15 Oil can pass through the porous structures of the materials while water is completely repelled by the materials. For instance, superhydrophobic filtration fabric was prepared through decorating the surface with poly(dimethyl siloxanes) (PDMS)/silica (SiO 2 ) composite coating, which can effectively separate the mixture of water and oil.…”

Section: Introductionmentioning

confidence: 99%

Oil–water separation capability of superhydrophobic fabrics fabricated via combining polydopamine adhesion with lotus‐leaf‐like structure

Wang

Chen

2015

J of Applied Polymer Sci

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By the combination of dual bionic on the superhydrophobicity of lotus leaf and the bioadhesion of mussel adhesive protein, the nanoparticles were strongly immobilized onto the surface of cotton fabric to form superhydrophobic and superoleophilic coating. The as‐prepared fabric can be used as effective material for separating various oil/water mixtures. The separation efficiency can reach 99.0%, 97.6%, 98.1%, 96.0%, 94.2%, and 94.5% for toluene/water, n‐hexane/water, chloroform/water, paraffin oil/water, linseed oil/water, and crude oil/water mixtures with volume ratio of 1 : 4, respectively. In addition, the obtained fabric still kept stable superhydrophobicity and high separation efficiency for oil/water mixtures after using repeatedly for 90 cycles or ultrasonic treatment. They also exhibited excellent chemical durability in harsh conditions of strong acidic and alkaline solutions. Owning to high separation efficiency, stable recyclability, low cost, scalable fabrication, and excellent durability, the as‐prepared fabric can be considered as promising material for the separation of oil/water mixtures. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42614.

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Nanostructured microporous polymer composite imprinted with superhydrophobic camphor soot, for emphatic oil–water separation

Abstract: The pollution of water devastatingly affects the marine environment by physical smothering and intoxication.

Cited by 51 publications

References 32 publications

3D Printing as Feasible Platform for On‐Site Building Oil‐Skimmer for Oil Collection from Spills

3D Printing as Feasible Platform for On‐Site Building Oil‐Skimmer for Oil Collection from Spills

Facile fabrication of robust superhydrophobic porous materials and their application in oil/water separation

Oil–water separation capability of superhydrophobic fabrics fabricated via combining polydopamine adhesion with lotus‐leaf‐like structure

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