Clean-up of oily liquids, fuels and organic solvents from the contaminated water fields using poly(propylene glycol) based organogels

Demirel, Yagmur Tezcan; Yati, Ilker; Donmez, Rahim; Sönmez, Hayal Bülbül

doi:10.1016/j.cej.2016.11.124

Cited by 30 publications

(4 citation statements)

References 62 publications

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Section: Role Of Solvent Choice In Gel Versatilitymentioning

confidence: 99%

“…They reported the synthesis of a pre‐organogel network by condensation reactions of polypropylene glycols (PPG)s with different molecular weights and tris[3‐(trimethoxysilyl) propyl] isocyanurate (ICS) (Figure 8B,i). [ 111 ] The authors observed a proportional increase in sorption capacity with a higher molecular weight of PPG. It was also found that the degree of crosslinking decreased with the molecular weight of PPG.…”

Section: Role Of Solvent Choice In Gel Versatilitymentioning

confidence: 99%

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Organogels versus Hydrogels: Advantages, Challenges, and Applications

Kuzina

Kartsev

Stratonovich

et al. 2023

Adv Funct Materials

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Organogels are an important class of gels, and are comparable to hydrogels owing to their properties as liquid-infused soft materials. Despite the extensive choice of liquid media and compatible networks that can provide a broader range of properties, relatively few studies are reported in this area. This review presents the applicability of organogels concerning their choice of components, unique properties, and applications. Their distinctive features compared to other gels are discussed, including multi-stimuli responses, affinity to a broad range of substances, thermal and environmental stability, electronic and ionic conductivity, and actuation. The active role of solvents is highlighted in the versatility of organogel properties. To differentiate between organogels and other gels, these are classified as gels filled with different organic liquids, including highly polar organic solvents and binary solvent systems. Most promising applications of organogels as sophisticated multifunctional materials are discussed in light of their unique features.

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Section: Role Of Solvent Choice In Gel Versatilitymentioning

confidence: 99%

Section: Role Of Solvent Choice In Gel Versatilitymentioning

confidence: 99%

Organogels versus Hydrogels: Advantages, Challenges, and Applications

Kuzina

Kartsev

Stratonovich

et al. 2023

Adv Funct Materials

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“…Synthetic sorbents may also have some disadvantages, such as capacity loss after repeated applications and nonbiodegradability. Furthermore, the use of toxic chemicals in their production could be considered as a negative aspect from the standpoint of eco-friendliness. , Regarding the above-mentioned features of the sorbents, some requirements should be considered essential in the synthesis of oil/organic solvent sorbents, including: (1) buoyancy; (2) high absorption capacity; (3) high rate of absorption and desorption; (4) reusability; (5) eco-friendliness; and (6) low cost. , Although combining all these properties in a single synthetic sorbent is very difficult, a great number of scientists have paid attention to create feasible and superior sorbents using many different synthetic oil sorbent approaches to solve the problems of oil and oil-derived organic liquid spills in the environment. − …”

Section: Introductionmentioning

confidence: 99%

“…19,20 Regarding the above-mentioned features of the sorbents, some requirements should be considered essential in the synthesis of oil/organic solvent sorbents, including: (1) buoyancy; (2) high absorption capacity; (3) high rate of absorption and desorption; (4) reusability; (5) eco-friendliness; and (6) low cost. 21,22 Although combining all these properties in a single synthetic sorbent is very difficult, a great number of scientists have paid attention to create feasible and superior sorbents using many different synthetic oil sorbent approaches to solve the problems of oil and oil-derived organic liquid spills in the environment. 23−25 The purpose of the present work is to create effective sorbents composed entirely of polytetrahydrofuran (PTHF) chain network structures for the removal of oil and oil-derived organic solvents from spill sites.…”

mentioning

confidence: 99%

Design of a Cross-linked PTHF-Based Network as an Oil/Organic Solvent Sorbent

Yati

Karadag

Sönmez

2020

Ind. Eng. Chem. Res.

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Novel effective oil/organic solvent sorbents were designed and comprised entirely from polytetrahydrofuran (PTHF)-based networks in a two-step approach: (1) preparing PTHF-based macro-cross-linkers and (2) cross-linking of PTHF polymers using the prepared PTHF-based macro-cross-linkers. With this approach, different molecular weights of hydroxyfunctional PTHF polymers were turned into ethoxysilane-functional macro-cross-linkers by the modification of hydroxyl groups of PTHF polymers with 3-(triethoxysilyl)propyl isocyanate. Then, the prepared ethoxysilane-functional macro-cross-linkers were condensed with hydroxy-functional PTHF polymers to synthesize PTHF-based networks as oil/organic solvent sorbents. The synthesized PTHF-based sorbents demonstrated superior absorption properties in various oils and organic solvents such as dichloromethane, tetrahydrofuran, benzene, toluene, ethylbenzene, xylene, methyl tertiary butyl ether (MTBE), gasoline, and crude oil. The recovery of the sorbents after repeating the application for the absorption of dichloromethane and MTBE is essential, and they can be reused effectively for at least 50 days without any capacity loss. All the synthesized PTHF-based sorbents depicted high thermal stability. The characterization of the macro-cross-linkers and PTHF-based sorbents were determined by using 1 H, 13 C, and 29 Si nuclear magnetic resonances and Fourier transform infrared spectroscopies. Thermal characteristics of the sorbents were identified by thermogravimetric analysis and differential scanning calorimetry. Absorption kinetics of the sorbents were further analyzed using pseudo-kinetic models and an intraparticle diffusion model.

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Inherently UV Photodegradable Poly(methacrylate) Gels

Scheiger

Brehm

et al. 2021

Adv Funct Materials

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Organogels (hydrophobic polymer gels) are soft materials based on polymeric networks swollen in organic solvents. They are hydrophobic and possess a high content of solvent and low surface adhesion, rendering them interesting in applications such as encapsulants, drug delivery, actuators, slippery surfaces (self-cleaning, anti-waxing, anti-bacterial), or for oil-water separation. To design functional organogels, strategies to control their shape and surface structure are required. Herein, the inherent UV photodegradability of poly(methacrylate) organogels is reported. No additional photosensitizers are required to efficiently degrade organogels (d ≈ 1 mm) on the minute scale. A low UV absorbance and a high swelling ability of the solvent infusing the organogel are found to be beneficial for fast photodegradation, which is expected to be transferrable to other gel photochemistry. Organogel arrays, films, and structured organogel surfaces are prepared, and their extraction ability and slippery properties are examined. Films of inherently photodegradable organogels on copper circuit boards serve as the first ever positive gel photoresist. Spatially photodegraded organogel films protect or reveal copper surfaces against an etchant (FeCl 3 aq. ).

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Clean-up of oily liquids, fuels and organic solvents from the contaminated water fields using poly(propylene glycol) based organogels

Cited by 30 publications

References 62 publications

Organogels versus Hydrogels: Advantages, Challenges, and Applications

Organogels versus Hydrogels: Advantages, Challenges, and Applications

Design of a Cross-linked PTHF-Based Network as an Oil/Organic Solvent Sorbent

Inherently UV Photodegradable Poly(methacrylate) Gels

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