Poly(alkoxysilane) reusable organogels for removal of oil/organic solvents from water surface

Kizil, Soner; Karadag, Koksal; Aydin, Gulsah Ozan; Sönmez, Hayal Bülbül

doi:10.1016/j.jenvman.2014.09.030

Cited by 47 publications

(16 citation statements)

References 53 publications

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“…Recently phase selective gels formed from the oil‐water mixture by direct powder gelators at room temperature was reported . The low molecular weight organogelators based on L‐phenylalanine, D‐/L‐arabinose based enantiomers, alkyl bicarbamates, C 2 ‐symmetric benzene, and N‐acetylglucosamine were utilized for an excellent phase selective gelation from biphasic mixture . There are only a few known types of PSOGs that can gel various type of solvents such as crude oils at room temperature, petrol, or other organic solvents at the hot condition.…”

Section: Introductionmentioning

confidence: 99%

Phenoxy‐Alkyl Maleates as Phase‐Selective Organogelators for Gelation of Edible Oils

Kumar

Nayak

2018

Euro J Lipid Sci & Tech

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Phase selective gelation may solve environmental problems such as water pollution and fire accidents during oil storage, a major problem for aquatic bodies. The objective of this work is to synthesize a series of phenoxy‐alkyl maleates (n‐PAM) oleogelators with homologous alkyl chain lengths for efficient phase selective gelation. The n‐PAM molecules are found to form oleogel in various edible oils among which sunflower oil shows best gelation. The gelation behavior increases with an increase in alkyl chain length of the n‐PAM gelators as observed from their low minimum gelation concentration (MGC) values. Oleogels thermal stability is examine through tube inversion method and differential scanning calorimetry (DSC). The rheological studies suggest that the oleogel of sunflower oil is mechanically stable and show typical viscoelastic properties. The field emission scanning electron microscopy (FE‐SEM) study of the gels shows sheet‐like morphology. Furthermore, the n‐PAM gelators exhibit quick phase selective gelation of edible oils at low MGC. Both the edible oil and gelator are quantitatively regained from recovered oleogel by employing the vacuum distillation. It is believed that these n‐PAMs could aid in reducing the environmental impacts of oil spills. Practical Applications: The phenoxy‐alkyl maleates gelators present in the MS show gelation ability in various edible oils at low minimum gelation concentration. These molecules also form efficient phase selective gelation with edible oils. Both oil and gelator can be recovered through vacuum distillation and gelator can be reused multiple times. Thus, all these advantages strongly point that out their bright future, in particular in edible oil spill recovery, could aid in reducing the environmental impacts from oil spills. Herein, the synthesized phenoxy alkyl maleate derivatives are reported as separators of edible oil from the oil‐water biphasic mixture. Initially, the gelator is solubilized in the biphasic mixture by heating. Later, gelation ability is observed by tube inversion method. From the phase selective gel, oil and gelator are separated through a distillation method. The recovered gelator can be reused in oil recovery process. This application may find use in oil recovery from waste plant of edible oil industries.

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Section: Introductionmentioning

confidence: 99%

Phenoxy‐Alkyl Maleates as Phase‐Selective Organogelators for Gelation of Edible Oils

Kumar

Nayak

2018

Euro J Lipid Sci & Tech

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“…В работе [21] методом объёмной поликон-денсации 1,3-бензолдиметанола с алкоксисила-нами различных длин цепи при 160°С (без ката-лизатора) получены новые полиалкоксисиланы с высоким нефтепоглощением. Эксперименты по набуханию в различных растворителях по-казали, что сшитые полиалкоксисиланы могут использоваться в качестве абсорбентов нефти и получаемых из неё органических растворителей.…”

Section: с 36-44)unclassified

Polymeric Sorbents for the Collection of Oil and Oil Products from the Surface of Reservoirs: a 2000–2017 Review of the English-language Literature (Part 2)

Bayburdov¹,

Ltd.²,

Shmakov³

2018

CBE

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Байбурдов Тельман Андреевич, кандидат химических наук, доцент кафедры полимеров на базе ООО «АКРИПОЛ» Института химии, Саратовский национальный исследовательский госу-дарственный университет имени Н. Г. Чернышевского, директор ООО «АКРИПОЛ», Саратов, bta@acrypol.ru Шмаков Сергей Львович, кандидат химических наук, доцент ка-федры полимеров на базе ООО «АКРИПОЛ» Института химии, Саратовский национальный исследовательский государственный университет имени Н. Г. Чернышевского, shmakovsl@info.sgu.ru Разливы нефти при авариях танкеров и трубопроводов пред-ставляют серьёзную угрозу для окружающей среды, приводят к потере энергоносителей и сильно загрязняют морскую воду. Одним из эффективных средств ликвидации разливов нефти по поверхности водоёмов является её механическое извлечение по механизму сорбции. Осуществлён поиск и проведён анализ научно-технической литературы на английском языке за 2000-2017 гг., посвящённой проблеме разработки сорбентов на основе полимерных материалов, предназначенных для сбора (абсорб-ции) разлитой нефти и нефтепродуктов с поверхности водоёмов с возможностью последующей рекуперации полезного продук-та. Во второй части обзора собраны сведения о менее пред-ставленных в литературе полимерных сорбционных материалах (полипропилен, полистирол, сополимеры стирола, полиуретан, меламин-формальдегидная смола, полиалкоксисиланы, хитозан, петрогели, полиакриламид, а также полимеры, применяемые для модификация неорганических субстратов -поливинилпирроли-дон, полиуретан-полидиметилсилоксан, политетрафторэтилен), даны характеристики предлагаемых сорбентов. Максимальная сорбция для рассмотренных материалов достигает: по нефти -158 г/г (UFC-пена на основе полимеламинформальдегидных пе-номатериалов), по хлороформу -160 г/г (полиуретановая губка, покрытая оксидом графена) и 163 г/г (супергидрофобная силани-зированная меламиновая губка). Оценена перспективность при-менения сорбентов указанных классов для очистки поверхностей водоёмов от нефтяных разливов.

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“…Those studies provide information that may be implemented in suggesting technologies for physical removal of oil spilled in the aquatic environment. Within this context, other materials currently in use for physicochemical oil remediation are sorbents 10 , 11 , solidifiers 12 and dispersants 13 . The use of such materials is however, frequently unsafe, and /or not eco-friendly 14 .…”

Section: Introductionmentioning

confidence: 99%

Gelatinizing oil in water and its removal via bacteria inhabiting the gels

Radwan

Al-Mailem

Kansour

2017

Sci Rep

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When crude oil samples were shaken (200 rpm) in seawater samples from the Arabian Gulf at 30 °C, usually oil-gels were produced spontaneously leaving the water quite clear. The gelators could probably be based on cholesteryl derivatives. Microscopic examination of the established gels revealed nanofibrellar structures similar to those described by earlier workers for artificially synthesized gelators. Communities of bacteria including prosthetic and stalked members as well as oil-degrading bacteria were recorded in such gels. Chemical analysis revealed that 88.5% of the oil entrapped by gelation was biodegraded after 40 days at 30 °C. Individual bacterial species isolated from the oil-gels biodegraded in batch cultures between 17.8 and 33.3% of the oil added at time zero in 12 days at 30 °C. Gelation is a promising approach, not only for clean, physical removal of oil spilled in aquatic habitats, as so far suggested, but also in its effective microbiological biodegradation, as the current study revealed.

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Poly(alkoxysilane) reusable organogels for removal of oil/organic solvents from water surface

Cited by 47 publications

References 53 publications

Phenoxy‐Alkyl Maleates as Phase‐Selective Organogelators for Gelation of Edible Oils

Phenoxy‐Alkyl Maleates as Phase‐Selective Organogelators for Gelation of Edible Oils

Polymeric Sorbents for the Collection of Oil and Oil Products from the Surface of Reservoirs: a 2000–2017 Review of the English-language Literature (Part 2)

Gelatinizing oil in water and its removal via bacteria inhabiting the gels

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