Fabrication of Ultrafiltration Membranes from PAN Composites and Hydrophilic Particles for Isolation of Heavy Oil Components

Yushkin, A. A.; Balynin, A. V.; Nebesskaya, A. P.; Efimov, M. N.; Bakhtin, D. S.; Baskakov, S. A.; Kanatieva, A. Yu.

doi:10.1134/s2517751623040078

Cited by 3 publications

(1 citation statement)

References 50 publications

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“…Modification with GO leads to enhanced water sorption due to its polar nature and functional groups. Thus, GO particles in a membrane act as selective channels for water and as an absorber for ethanol [32], resulting in improved permeability [33,34]. It is also worth noting that GO interacts with groups of SA and PEI in the PEC composition, forming various bonds and linking polymer chains, leading to improved PEC-based membrane selectivity [26].…”

Section: Introductionmentioning

confidence: 99%

Pervaporation Membranes Based on Polyelectrolyte Complex of Sodium Alginate/Polyethyleneimine Modified with Graphene Oxide for Ethanol Dehydration

Dmitrenko,

Mikhailovskaya,

Dubovenko

et al. 2024

Polymers

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Pervaporation is considered the most promising technology for dehydration of bioalcohols, attracting increasing attention as a renewable energy source. In this regard, the development of stable and effective membranes is required. In this study, highly efficient membranes for the enhanced pervaporation dehydration of ethanol were developed by modification of sodium alginate (SA) with a polyethylenimine (PEI) forming polyelectrolyte complex (PEC) and graphene oxide (GO). The effect of modifications with GO or/and PEI on the structure, physicochemical, and transport characteristics of dense membranes was studied. The formation of a PEC by ionic cross-linking and its interaction with GO led to changes in membrane structure, confirmed by spectroscopic and microscopic methods. The physicochemical properties of membranes were investigated by a thermogravimetric analysis, a differential scanning calorimetry, and measurements of contact angles. The theoretical consideration using computational methods showed favorable hydrogen bonding interactions between GO, PEI, and water, which caused improved membrane performance. To increase permeability, supported membranes without treatment and cross-linked were developed by the deposition of a thin dense layer from the optimal PEC/GO (2.5%) composite onto a developed porous substrate from polyacrylonitrile. The cross-linked supported membrane demonstrated more than two times increased permeation flux, higher selectivity (above 99.7 wt.% water in the permeate) and stability for separating diluted mixtures compared to the dense pristine SA membrane.

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Section: Introductionmentioning

confidence: 99%

Pervaporation Membranes Based on Polyelectrolyte Complex of Sodium Alginate/Polyethyleneimine Modified with Graphene Oxide for Ethanol Dehydration

Dmitrenko,

Mikhailovskaya,

Dubovenko

et al. 2024

Polymers

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Biomass-Derived Cellulose Acetate Membranes Modified with TiO₂/Graphene Oxide for Oil-In-Water Emulsion Treatment

Schmidt,

Costa,

Cipriano

et al. 2024

ACS Omega

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Considering the environmental impact and health risks caused by oily wastewater in the petrochemical industry, it is crucial to develop more efficient separation techniques than traditional methods, such as membrane separation, for treating stable emulsions enriched with natural surfactants. This study investigated the preparation of dense cellulose acetate membranes from a low-cost biomass precursor (Luffa cylindrica) and their modification with graphene oxide (GO) and TiO 2 nanoparticles, aiming to obtain a polymeric nanocomposite with good flux characteristics and selectivity for the treatment of oil/water emulsions. The materials obtained were characterized using techniques such as X-ray diffraction, nuclear magnetic resonance spectroscopy, infrared absorption spectroscopy, along with optical and scanning electron microscopy, among others. The membranes were prepared by the casting technique and modified with the above-mentioned nanostructured materials. Flux analyses with petroleum emulsion revealed that membranes modified with GO and TiO 2 nanoparticles showed significant improvements in antifouling resistance compared to unmodified membranes. These enhanced properties highlight the potential of modified cellulose acetate membranes for application in industrial wastewater treatment.

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Oil Deasphalting Using Ultrafiltration PAN Membranes

Yushkin,

Balynin,

Nebesskaya

et al. 2023

Membr. Membr. Technol.

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Fabrication of Ultrafiltration Membranes from PAN Composites and Hydrophilic Particles for Isolation of Heavy Oil Components

Cited by 3 publications

References 50 publications

Pervaporation Membranes Based on Polyelectrolyte Complex of Sodium Alginate/Polyethyleneimine Modified with Graphene Oxide for Ethanol Dehydration

Pervaporation Membranes Based on Polyelectrolyte Complex of Sodium Alginate/Polyethyleneimine Modified with Graphene Oxide for Ethanol Dehydration

Biomass-Derived Cellulose Acetate Membranes Modified with TiO₂/Graphene Oxide for Oil-In-Water Emulsion Treatment

Oil Deasphalting Using Ultrafiltration PAN Membranes

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Fabrication of Ultrafiltration Membranes from PAN Composites and Hydrophilic Particles for Isolation of Heavy Oil Components

Cited by 3 publications

References 50 publications

Pervaporation Membranes Based on Polyelectrolyte Complex of Sodium Alginate/Polyethyleneimine Modified with Graphene Oxide for Ethanol Dehydration

Pervaporation Membranes Based on Polyelectrolyte Complex of Sodium Alginate/Polyethyleneimine Modified with Graphene Oxide for Ethanol Dehydration

Biomass-Derived Cellulose Acetate Membranes Modified with TiO2/Graphene Oxide for Oil-In-Water Emulsion Treatment

Oil Deasphalting Using Ultrafiltration PAN Membranes

Contact Info

Product

Resources

About

Biomass-Derived Cellulose Acetate Membranes Modified with TiO₂/Graphene Oxide for Oil-In-Water Emulsion Treatment