Polyvinyl alcohol/polyethersulfone thin-film nanocomposite membranes with carbon nanomaterials incorporated in substrate for water treatment

Behdarvand, Fatemeh; Valamohammadi, Elham; Tofighy, Maryam Ahmadzadeh; Mohammadi, Toraj

doi:10.1016/j.jece.2020.104650

Cited by 62 publications

(19 citation statements)

References 100 publications

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“…To enhance the hydrophilicity of the UV photo-oxidized PES surface, incorporation of graphene oxide [17][18][19][20][21] and sulfonated groups on the surface [20,22] may help create increased interfacial adhesion via H-bonding and dipole-dipole interaction. In addition, surface treatment of PES with polymerized dopamine [23] and waterborne nanocellulose coatings [24] increased hydrophilicity and improved the antifouling and antibacterial properties of PES.…”

Section: Discussionmentioning

confidence: 99%

Surface Modification of Polyethersulfone (PES) with UV Photo-Oxidation

et al. 2021

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Polyethersulfone (PES) films are widely employed in the construction of membranes where there is a desire to make the surface more hydrophilic. Therefore, UV photo-oxidation was studied in order to oxidize the surface of PES and increase hydrophilicity. UV photo-oxidation using low pressure mercury lamps emitting both 253.7 and 184.9 nm radiation were compared with only 253.7 nm photons. The modified surfaces were characterized using X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and water contact angle (WCA) measurements. Both sets of lamps gave similar results, showing an increase of the oxygen concentration up to a saturation level of ca. 29 at.% and a decrease in the WCA, i.e., an increase in hydrophilicity, down to ca. 40°. XPS detected a decrease of sp2 C-C aromatic group bonding and an increase in the formation of C-O, C=O, O=C-O, O=C-OH, O-(C=O)-O, and sulphonate and sulphate moieties. Since little change in surface roughness was observed by AFM, the oxidation of the surface caused the increase in hydrophilicity.

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Section: Discussionmentioning

confidence: 99%

Surface Modification of Polyethersulfone (PES) with UV Photo-Oxidation

et al. 2021

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“…Both host supports (PA and PSf) on which PVA/GO was coated were capable of high NaCl removal (>95%) from saline feed. In another work, [ 269 ] oxidized MWCNTs and GO were applied onto a PES substrate via phase inversion method. Substrate surface was coated with PVA followed by GA crosslinking.…”

Section: Pva‐based Water Treatment Membranesmentioning

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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“…While, use of GO nanomaterials along with PVA in the top layer resulted in a higher water permeation, 137 compared to PIPA‐PVA based composite membranes 133,134 . Wagh et al 138 modified polybenzimidazole (PBI)‐based NF membrane by incorporation of aquaporin into the selective layer. They used alkylated‐PVA/Aquaporin (AqpZ) blend to modify the surface of the PBI membrane, using carbodiimide chemistry.…”

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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Polyvinyl alcohol/polyethersulfone thin-film nanocomposite membranes with carbon nanomaterials incorporated in substrate for water treatment

Cited by 62 publications

References 100 publications

Surface Modification of Polyethersulfone (PES) with UV Photo-Oxidation

Surface Modification of Polyethersulfone (PES) with UV Photo-Oxidation

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

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