Highly improved reverse osmosis performance of novel PVA/DGEBA cross-linked membranes by incorporation of Pluronic F-127 and MWCNTs for water desalination

Falath, Wail; Sabir, Aneela; Jacob, Karl I.

doi:10.1016/j.desal.2016.06.019

Cited by 48 publications

(9 citation statements)

References 118 publications

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“…Regarding the Donnan electrostatic exclusion effect the rejection of Na 2 SO 4 was found to be higher than MgSO 4 and NaCl, respectively (Figure 5). PVA TFC membranes [270] were also fabricated by the infusion of Pluronic F-127, a triblock amphiphilic copolymer, and MWCNTs in one layer which was crosslinked via a novel agent, namely bisphenol A diglycidyl ether. Simultaneous presence of such hydrophilic agents as PVA, Pluronic F-127, and MWCNTs had significant effect on hydrophilicity, permeability, and salt rejection.…”

Section: Thin Film Compositesmentioning

confidence: 99%

Polyvinyl alcohol‐based membranes for filtration of aqueous solutions: A comprehensive review

Razmgar

Nasiraee

2021

Polymer Engineering & Sci

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This review provides a comprehensive overview on applications, preparation methods, and most notably the performance efficiency of polyvinyl alcohol (PVA)-based membranes for filtration of aqueous environments. Incorporation of PVA into the membrane matrix significantly enhances such characteristics as antifouling and antibacterial properties as well as hydrophilicity and permeability in the water and wastewater filtrations. Contribution of different PVAbased modular membranes for water purification targets via a comparative review on previous researches is the main theme in this work. Alongside with the focused topic, some basic theories and principals of blend and composite polymer films as well as polymer fibers are debated before the main discussions. This review will ultimately facilitate further development of PVA membranes for the future investigations.

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Section: Thin Film Compositesmentioning

confidence: 99%

Polyvinyl alcohol‐based membranes for filtration of aqueous solutions: A comprehensive review

Razmgar

Nasiraee

2021

Polymer Engineering & Sci

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“…To attain high performance of RO membranes and to balance the hydrophilic/hydrophobic equilibrium in the active layer, PVA/Pluronic blend have been examined using different crosslinking agents. Research group led by Falath prepared a series of PVA/Pluronic crosslinked thin film membranes, containing MWCNT 156 and Gum Arabic 157 in active layer and hyperbranched polyethyleneimine 158 coating on the top surface. At similar operating conditions for seawater desalination, diglycidyl ether of bisphenol A (DGEB)‐crosslinked PVA/Pluronic membrane containing MWCNT showed higher water flux compared to both DGEB‐crosslinked‐PVA/Pluronic membrane incorporated with Gum Arabic and hyperbranched PEI (HBPEI)‐coated maleic acid‐crosslinked‐PVA/Pluronic membrane.…”

Section: Pva‐based Membranes For Water Treatmentmentioning

confidence: 99%

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

Choudhury

Gohil

Dutta

2021

Polymers for Advanced Techs

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Clean water and energy are two of the most important requirements for human survival. Membrane‐based filtration represents one of the advanced technologies involved in water decontamination; while, polymer electrolyte membrane fuel cells (PEMFCs) are among the frontrunners in the alternative and renewable energy domain. It is evident that membrane‐based processes provide sustainable solution to the ever‐increasing demand of energy and clean water. Over the years, it has been realized that synthetic poly(vinyl alcohol) (PVA) is one of the potential candidates for the development of membranes, owing to its hydrophilicity, barrier property, film forming ability, crosslinking ability, biodegradability, and low cost. These properties have been widely explored for the fabrication of polymer electrolyte membranes for PEMFCs, in order to improve the ionic conductivity and methanol barrier property, as well as, to reduce the membrane fabrication cost. On the other hand, high water solubility and film forming characteristics of PVA have been used for the formation of water treatment membranes, for enhancing the antifouling property and chemical stability. This review provides in‐depth discussions and analyses on the structure and properties of various PVA‐based copolymers, and their applications as membrane materials for PEMFCs (including direct methanol and alkaline fuel cells) and water remediation.

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“…After the addition of Pluronic F-127 (in PP, PPS-Cnt and PPM-Cnt), the growth of finger-like voids increased. Pluronic F127 is an amphiphilic copolymer, generated by two substituents consisting of polyethylene oxide (PEO) (hydrophilic chain) and polypropylene oxide (PPO) (hydrophobic chain) [21,24]. Due to its hydrophobic nature, PPO tends to have a strong bond with the PES polymer chain.…”

Section: Membrane Morphological Structurementioning

confidence: 99%

“…Consequently, when the Pluronic F127 micelles were attracted from the dope solution by the non-solvent, a more porous sub-layer was formed. The final voids determine the pore size of the membranes [21,24].…”

Section: Membrane Morphological Structurementioning

confidence: 99%

Ultrafiltration of α-Lactalbumin Protein: Acquaintance of the Filtration Performance by Membrane Structure and Surface Alteration

et al. 2021

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α-Lactalbumin is an essential protein with multiple roles in physiological and the nutritional functionalities, such as diabetic prevention, blood pressure stabilization, and cancer cell inhibition. In the present work, polyethersulfone (PES)-based membranes were developed by incorporating Pluronic F127 and carbon nanotubes with single- and multi-walled dimensions (Sw-Cnts and Mw-Cnts) as additives. The resulting membranes were evaluated for use in the filtration of α-lactalbumin protein solution. Four series of membranes, including PES pristine membrane, were fabricated via the phase inversion process. The characteristics of the membrane samples were analyzed in terms of morphology, membrane surface hydrophilicity and roughness, and surface chemistry. The characterization results show that the incorporation of additive increased the surface wettability by reducing the surface water contact angle from 80.4° to 64.1° by adding F127 and Mw-Cnt additives. The highest pure water permeability of 135 L/(m2·h·bar) was also exhibited by the PES/F127/Mw-Cnt membrane. The performance of the modified membranes was clearly better than the pristine PSF for α-lactalbumin solution filtration. The permeability of α-lactalbumin solution increased from 9.0 L/(m2·h·bar) for the pristine PES membrane to 10.5, 11.0 and 11.5 L/(m2·h·bar) for membranes loaded with Pluronic F127, Sw-Cnts, and Mw-Cnts, respectively. Those increments corresponded to 17, 22, and 28%. Such increments could be achieved without altering the α-lactalbumin rejections of 80%. Remarkably, the rejection for the membrane loaded with Sw-Cnts even increased to 89%.

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Highly improved reverse osmosis performance of novel PVA/DGEBA cross-linked membranes by incorporation of Pluronic F-127 and MWCNTs for water desalination

Cited by 48 publications

References 118 publications

Polyvinyl alcohol‐based membranes for filtration of aqueous solutions: A comprehensive review

Polyvinyl alcohol‐based membranes for filtration of aqueous solutions: A comprehensive review

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

Ultrafiltration of α-Lactalbumin Protein: Acquaintance of the Filtration Performance by Membrane Structure and Surface Alteration

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