Bio-Sourced and Biodegradable Membranes

Ehsani, Masoume; Kalugin, Denis; Doan, Huu; Lohi, Ali; Abdelrasoul, Amira

doi:10.3390/app122412837

Cited by 5 publications

(4 citation statements)

References 267 publications

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“…The comparatively lower rejection rate of biobased graphene membranes in desalination, when contrasted with other graphene membranes, can be ascribed to few factors. First, structural variations between biobased and synthetic graphene membranes may lead to the presence of unstructured multiple layers of graphene and defects. , These differences can result in variations in pore sizes, distribution, and interlayer distances, thereby influencing the membrane’s selectivity. The salt rejection is significantly influenced by pore diameter, with appropriately sized pores facilitating water flow while preventing the passage of salt ions .…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Graphene-Based Nanofiltration Membrane from Fractionated Bamboo Lignin for Dye Removal and Desalination

Ahmad Farid,

Sabidi,

Ruozhu

et al. 2023

ACS Appl. Eng. Mater.

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The growing demand for sustainable and renewable materials has driven extensive research into the use of lignocellulosic biomass as a promising feedstock for the development of advanced biobased membranes. In this present work, we established the viability of producing greener lignin-derived graphene oxide (bGO) and reduced graphene oxide (brGO) membranes from bamboo biomass to fabricate an ordered two-dimensional (2D) laminar channel for nanofiltration. It is imperative to emphasize that our methodology is intricately designed as a sequential strategy for the synthesis of bGO and brGO. This meticulously orchestrated sequence encompasses graphitization followed by consecutive oxidation and reduction processes, all unfolding prior to the subsequent facile layer-by-layer deposition, a pivotal step in membrane fabrication. The as-prepared bGO and brGO membranes showed nanosize pore openings of 1.15 and 0.03 nm and water pathway lengths of 65.15 and 49.09 nm, respectively. Pronounce enhancement by 52-to 60-fold in water permeance was exhibited using the brGO membrane for rejection of organic dyes (methylene blue, MB; direct red 81, DR-81) and salt (sodium sulfate, Na 2 SO 4 ) solutions compared to lignin-derived graphene oxide (bGO) membrane while the rejections remained comparable at 88, 99, and 57.6% for Na 2 SO 4 , MB, and DR-81, respectively. The brGO membrane's remarkable mechanical stability was also proven in an ultrasound test, withstanding up to 2 h without swelling and hence resistant to disintegration under solution immersion conditions. This work provides insight into the fabrication of graphene-based membranes from biomass for highly efficient nanofiltration performance and sheds some light on the transport mechanism within 2D laminar channels.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Graphene-Based Nanofiltration Membrane from Fractionated Bamboo Lignin for Dye Removal and Desalination

Ahmad Farid,

Sabidi,

Ruozhu

et al. 2023

ACS Appl. Eng. Mater.

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“…Solute-membrane interactions, which could lead to fouling formation, are strongly influenced by membrane properties such as hydrophobicity/hydrophilicity, pore size, and surface charge [22,129]. There is a risk of fouling development both in hydrophilic and hydrophobic polymeric membranes.…”

Section: Challenges Of Membrane Technology In Purification Of Plant-b...mentioning

confidence: 99%

“…There is a risk of fouling development both in hydrophilic and hydrophobic polymeric membranes. However, membranes with a highly hydrophilic nature are less susceptible to severe fouling development during the separation and purification of organic matter like proteins [22,32,129]. In this regard, Leberknight et al [130] used polyethersulfone (PES) and regenerated cellulose membranes (5 kDa) in an ultrafiltration process for protein recovery from a corn ethanol process.…”

Section: Challenges Of Membrane Technology In Purification Of Plant-b...mentioning

confidence: 99%

Advancing Faba Bean Protein Purification Using Membrane Technology: Current State and Future Perspectives

Ehsani,

Westphalen,

Doan

et al. 2024

J. Compos. Sci.

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Plant-based proteins are gaining popularity because of their appeal to vegetarians and vegans, alignment with scientific and regulatory recommendations, and the environmental impact associated with livestock production. Several techniques are employed for the separation, isolation, and purification of plant-based proteins including membrane-based separation, diafiltration, centrifugation, chromatography, electrophoresis, micellar precipitation, and isoelectric precipitation. Despite decades of application, these techniques still have some limitations such as scale-up challenges, high solvent consumption, chemical/biological disposal, and the possibility of protein loss during precipitation or elution. Membrane separation processes are the most effective purification/concentration technology in the production of plant-based protein isolates and concentrates due to their selective separation, simple operational conditions, and easy automation. Membrane separation processes yielded products with higher protein content compared to isoelectric precipitation, and all concentrates presented good functional properties with expected variability among different legumes. This review critically focuses on the membrane technology advances and challenges for the purification of plant-based protein isolates. This study also highlights the plant-based diet trend, the market, composition, and the protein isolate of the faba bean, in addition to the emerging technologies for the elimination of antinutritional compounds.

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“…The demand for more environmentally friendly membranes has significantly grown in recent years [ 41 ]. Bio-based polymers offer an opportunity to enhance sustainability in membrane technology by serving as alternative materials for the production of environmentally friendly polymeric membranes [ 42 ]. Cellulose and chitosan are popular choices for producing environmentally friendly polymeric membranes that find application in a wide range of membrane separation processes [ 43 ].…”

Section: Membrane Modification Techniquesmentioning

confidence: 99%

Modified Membranes for Redox Flow Batteries—A Review

Tsehaye,

Tufa,

Berhane

et al. 2023

Membranes

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In this review, the state of the art of modified membranes developed and applied for the improved performance of redox flow batteries (RFBs) is presented and critically discussed. The review begins with an introduction to the energy-storing chemical principles and the potential of using RFBs in the energy transition in industrial and transport-related sectors. Commonly used membrane modification techniques are briefly presented and compared next. The recent progress in applying modified membranes in different RFB chemistries is then critically discussed. The relationship between a given membrane modification strategy, corresponding ex situ properties and their impact on battery performance are outlined. It has been demonstrated that further dedicated studies are necessary in order to develop an optimal modification technique, since a modification generally reduces the crossover of redox-active species but, at the same time, leads to an increase in membrane electrical resistance. The feasibility of using alternative advanced modification methods, similar to those employed in water purification applications, needs yet to be evaluated. Additionally, the long-term stability and durability of the modified membranes during cycling in RFBs still must be investigated. The remaining challenges and potential solutions, as well as promising future perspectives, are finally highlighted.

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Bio-Sourced and Biodegradable Membranes

Cited by 5 publications

References 267 publications

Fabrication of Graphene-Based Nanofiltration Membrane from Fractionated Bamboo Lignin for Dye Removal and Desalination

Fabrication of Graphene-Based Nanofiltration Membrane from Fractionated Bamboo Lignin for Dye Removal and Desalination

Advancing Faba Bean Protein Purification Using Membrane Technology: Current State and Future Perspectives

Modified Membranes for Redox Flow Batteries—A Review

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