Development of Novel Membranes Based on Polyvinyl Alcohol Modified by Pluronic F127 for Pervaporation Dehydration of Isopropanol

Sustainability, Год журнала: 2022, Номер 14(6), С. 3561 - 3561

Опубликована: Март 17, 2022

Membrane methods are environmentally friendly and can significantly improve the design development of new energy consumption processes that very important nowadays. However, their effective use requires advanced membrane materials. This study aims to performance pervaporation polyvinyl alcohol (PVA)-based for isopropanol dehydration. To achieve this goal, two were applied: (1) bulk modification PVA by Pluronic F127 (2) supported PVA-based using polyphenylene isophthalamide (PA) as a substrate with various porosity. Developed membranes characterized Fourier-transform infrared spectroscopy, scanning electron microscopy (SEM), contact angle measurement, swelling experiments. The concentration influence PA casting solution (12–20 wt.%) on porous (substrates) was investigated in ultrafiltration pure water bovine serum albumin (BSA) well microscopic (SEM atomic force microscopy). developed dense tested dehydration isopropanol. Optimal transport characteristics obtained selective layer containing 3 wt.% onto an (17 substrate: improved permeation flux 0.100–1.164 kg/(m2 h) 98.8–84.6 content permeate (12–80 water).

Язык: Английский

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Desalination of saline water and wastewater using graphene oxide mixed matrix membranes through pervaporation method

Desalination and Water Treatment, Год журнала: 2025, Номер unknown, С. 100989 - 100989

Опубликована: Янв. 1, 2025

Язык: Английский

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Eco-friendly synthesis of porous and charged polyethersulfone membrane for improved protein separation efficiency

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104422 - 104422

Опубликована: Фев. 1, 2025

Язык: Английский

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A Review of Recent Developments of Pervaporation Membranes for Ethylene Glycol Purification

Membranes, Год журнала: 2022, Номер 12(3), С. 312 - 312

Опубликована: Март 10, 2022

Ethylene glycol (EG) is an essential reagent in the chemical industry including polyester and antifreeze manufacture. In view of constantly expanding field EG applications, search for implementation novel economical environmentally friendly technologies separation organic aqueous–organic solutions remain issue. Pervaporation currently known to significantly reduce energy resource consumption a manufacturer when obtaining high-purity components using automatic, easily scalable, compact equipment. This review provides overview current research advances pervaporation EG-containing mixtures (water/EG methanol/EG), as well detailed analysis relationship performance with membrane structure properties materials. It discussed that controlled change transport possible modification methods such treatment solvents, introduction nonvolatile additives, polymer blending, crosslinking, heat treatment. The use various modifiers also described, particularly positive effect on selectivity highlighted. Among polymers, hydrophilic PVA-based membranes stand out optimal they offer dehydrating. Fabricating TFC microporous support layer appears be viable approach development productivity without loss. Special attention given recovery methanol from EG, extensive studies membranes. Membranes based CS/PVP blend inorganic are specifically promising removal. With regard wettability properties, it worth mentioning hydrophobic polymers (e.g., SPEEK, PBI/PEI, PEC, PPO) capable exhibiting much higher due diffusion limitations.

Язык: Английский

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Toward fabrication of fouling resistant pervaporation membrane for desalination: Surface modification of TFC membrane via grafting of mPEG-NH2

Desalination, Год журнала: 2023, Номер 567, С. 116970 - 116970

Опубликована: Сен. 11, 2023

Язык: Английский

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Process optimization for the removal of sodium diclofenac from water using a green polymeric membrane

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(5), С. 113237 - 113237

Опубликована: Июнь 3, 2024

Язык: Английский

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Facile physical modification of ultrathin polyethylene by trace poly(vinyl alcohol)

Polymer, Год журнала: 2023, Номер 282, С. 126195 - 126195

Опубликована: Июль 13, 2023

Язык: Английский

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Simulation study on an atmospheric pressure plasma jet interacting with a single fiber: effects of the fiber’s permittivity

Plasma Sources Science and Technology, Год журнала: 2022, Номер 31(9), С. 095010 - 095010

Опубликована: Июль 27, 2022

Abstract Polymer fiber surface modification by low temperature plasma has received much attention in recent years. The kinetic behavior and reactive species distribution can be totally different with the existence of fiber. In this work, a 2D axisymmetric fluid model is established to study interaction between an atmospheric pressure jet single relative permittivity ( ε r = 1.5 80, respectively). Division ionization wave observed when approaching fiber, followed full wrapping surface. Afterward, travels across continues propagate forward. Significant effects induced variation fiber’s are observed. For high electric field (EF) region shifts from south pole (SP; closer tube) north (NP; opposite side SP), but EF remains at SP for 80. This due large potential difference on 1.5. Furthermore, time-averaged fluxes main ions (He + , N 2 O ) excited (Hes, N, O) analyzed. It found that 80 NP significantly higher than Therefore, increasing dielectric constant would increase NP.

Язык: Английский

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Utilization of MOF‐enhanced hydrophilic nanocomposite reverse osmosis membrane for desalination with antifouling capabilities

Polymer Engineering and Science, Год журнала: 2024, Номер 64(9), С. 4430 - 4441

Опубликована: Июнь 23, 2024

Abstract Cellulose acetate (CA) membranes used in reverse osmosis (RO) desalination techniques often face fouling challenges. In this experimental study, the phase inversion method was employed to investigate incorporation of graphene oxide nanoparticles (GONP) metal–organic frameworks (MOF), into casting solution for composite CA‐RO membranes. The effects varying GONP concentrations on resistance and hydrophilicity were evaluated using scanning electron microscopy (SEM), contact angle measurements, water content analysis. results demonstrated that modified CA membrane with 0.05 wt% exhibited improved permeability (10.3 L/m 2 h) salt rejection (95.8%) compared pristine membrane. These improvements stem from increased reduced fouling. This study's findings suggest incorporating polymeric doped can effectively mitigate issues enhance performance RO applications. Highlights enhances hydrophilicity, reducing desalination. Effects studied. GONP‐CA shows better than pristine. Nanocomposite promise overcoming

Язык: Английский

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Bio-Sourced and Biodegradable Membranes

Applied Sciences, Год журнала: 2022, Номер 12(24), С. 12837 - 12837

Опубликована: Дек. 14, 2022

Biodegradable membranes with innovative antifouling properties are emerging as possible substitutes for conventional membranes. These types of have the potential to be applied in a wide range applications, from water treatment food packaging and energy production. Nevertheless, there several existing challenges limitations associated use biodegradable large scale further studies required determine degradation mechanisms their scalability. can produced either renewable natural resources or synthesized low-molecular monomers that increase number structures and, result, greatly expand membrane application possibilities. This study focused on bio-sourced polymers green materials. Moreover, article highlighted excellent assist improving lifetime during filtration processes, preventing chemical/biological disposal due frequent cleaning processes ultimately reducing maintenance cost. The industrial biomedical applications were also summarized, along limitations. Finally, an overview future trends regarding various industries was thoroughly analyzed.

Язык: Английский

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