A Sugar‐Based Gelator for Marine Oil‐Spill Recovery

Vibhute, Amol M.; Venkatanarayana, M.; Sureshan, Kana M.

doi:10.1002/ange.201510308

Cited by 49 publications

(27 citation statements)

References 38 publications

(8 reference statements)

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“…Sugar-based gelators have freshly been stated to absorb crude oil effectively. 12,13 Recently, membranes have been used for the separation of water from oil in water emulsions. 14−16 The effectiveness of the employed methods hinges on several parameters like the viscosity of the oils, weather conditions, temperature, time passed, and so on.…”

Section: Introductionmentioning

confidence: 99%

Superswelling Hybrid Sponge from Water Glass for Selective Absorption of Crude Oil and Organic Solvents

2019

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A lightweight super hydrophilic hybrid sponge is designed and demonstrated out of water glass and an organic polymer, which has a macroporous flaky nature and is superflexible with an apparent density of 0.069 g cc–1, ∼97% porosity, and 3000% water uptake. The octadecyltrimethoxy silane-modified hybrid sponge exhibits selective absorption of oil and organic solvents in open water. An absorption capacity in the range 12–23 g g–1 for the test liquids light crude oil, engine oil, paraffin oil, chloroform, kerosene, and hexane is revealed. Absorption capacity by a weight basis was directly proportional to the density and inversely proportional to the viscosity of test liquids. Trials under both stagnant and turbulent conditions verify selective uptake of oil from sea water. Complete regeneration of the absorbent was possible for ten cycles for the test liquids. The work provides design of an affordable water clean-up material alternative to commonly used polyurethane sponges.

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Section: Introductionmentioning

confidence: 99%

Superswelling Hybrid Sponge from Water Glass for Selective Absorption of Crude Oil and Organic Solvents

2019

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“…The gelation of sunflower oil indicates a promising potential application of L-Tyr( t Bu)-OH in the field of drug delivery 30 – 32 . Similarly, the gelation of diesel by L-Tyr( t Bu)-OH was observed, indicating a possible function in oil-spill recovery 3 , 10 .…”

Section: Resultsmentioning

confidence: 87%

Simple Tyrosine Derivatives Act as Low Molecular Weight Organogelators

Aykent

Zeytun

Marion

et al. 2019

Sci Rep

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The gelation of L-Tyr(tBu)-OH in tetrahydrofuran (THF) was discovered serendipitously. It was noted that this tremendously low molecular weight (LMW) compound has the ability to gel a wide variety of organic solvents (e.g., N,N-Dimetylformamide (DMF), THF, butanol, toluene), even in very low concentrations (i.e., 0.1 wt/v% in DMF). Addition of bases such as NaOH and piperidine enhanced the gel property. By changing the side-chain protecting group to tert-butyldimethylsilyl (TBDMS), a fluoride ion-responsive organogel was also acquired. This new organogelator responded fluoride ion concentration as low as 0.2 ppm. Characterization of microstructures and gel behaviours were studied by powder X-Ray diffraction spectroscopy (XRD), transmission electron microscopy (TEM), rheological measurements and molecular dynamics (MD) simulations. Experimental observations and theoretical simulations consistently show a fibre-like structure of the gel, in which the organogelator molecules are held together via a dense network of hydrogen bonds, and via van der Waals interactions between hydrophobic groups.

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“…Over the past years, supramolecular hydrogels composed of three‐dimensional network and entrapped water have attracted extensive attention of scientists, owing to their potential application in the fields of catalysis, sensors, drug delivery, oil‐spill recovery, genetic engineering and tissue engineering . Generally, supramolecular hydrogels are constructed via weak non‐covalent interactions, viz .…”

Section: Introductionmentioning

confidence: 99%

Multi‐Responsive Supramolecular Hydrogels Derived from Gemini Surfactants for Visual Recognition of Isomerization

Zhong

et al. 2019

ChemistrySelect

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A new series of gemini surfactants containing azobenzene moieties with different alkyl chains (TMn, n denotes the number of carbon atom in alkyl chains) were successfully designed and synthesized. And then, their gelation abilities in water were evaluated in detail. It was found that stable supramolecular hydrogels could be formed at room temperature when n=8 (TM8), in which TM8 molecules self‐assembled into ordered bilayer aggregates via intermolecular hydrogen bonding and π‐π stacking interactions. Moreover, this kind of hydrogel exhibits excellent mechanical property and thermo‐reversibility. Interestingly, the TM8 molecule can be well‐recognized by α‐cyclodextrin (α‐CD) via host‐guest interactions. When α‐CD is added to the TM8‐H2O system, the corresponding hydrogel displays photo‐sensitive characteristics under irradiation of UV light (365 nm). As a conversion material, this multi‐responsive supramolecular hydrogel has great potentials in the smart switch field.

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A Sugar‐Based Gelator for Marine Oil‐Spill Recovery

Cited by 49 publications

References 38 publications

Superswelling Hybrid Sponge from Water Glass for Selective Absorption of Crude Oil and Organic Solvents

Superswelling Hybrid Sponge from Water Glass for Selective Absorption of Crude Oil and Organic Solvents

Simple Tyrosine Derivatives Act as Low Molecular Weight Organogelators

Multi‐Responsive Supramolecular Hydrogels Derived from Gemini Surfactants for Visual Recognition of Isomerization

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