Highly porous cellulosic nanocomposite membranes with enhanced performance for forward osmosis desalination

Ahmed, Doaa F.; Isawi, Heba; Badway, Nagwa A.; El-Bayaa, A. A.; Shawky, Hosam

doi:10.1007/s13726-021-00901-4

Cited by 13 publications

(3 citation statements)

References 41 publications

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“…Membrane technology has found widespread applications in freshwater production and has emerged as an effective remedy for water scarcity. Current membrane processes, such as reverse osmosis (RO), electrodialysis, and membrane distillation, are energy-intensive. − In contrast, forward osmosis (FO) offers many advantages, such as lower energy consumption, less fouling tendency, and a reasonable water recovery rate, making it an excellent alternative to conventional processes. − To date, FO has been successfully employed in desalination, , wastewater treatment, , pharmaceutical industries, , food processing, , and osmotic power generation. , …”

Section: Introductionmentioning

confidence: 99%

“…3−6 In contrast, forward osmosis (FO) offers many advantages, such as lower energy consumption, less fouling tendency, and a reasonable water recovery rate, making it an excellent alternative to conventional processes. 7−9 To date, FO has been successfully employed in desalination, 10,11 wastewater treatment, 12,13 pharmaceutical industries, 14,15 food processing, 16,17 and osmotic power generation. 18,19 In the FO process, water flows from the low osmotic potential side feed solution (FS) to the high osmotic pressure draw solution (DS) due to the natural osmotic pressure difference.…”

Section: Introductionmentioning

confidence: 99%

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Hydrophilic Antifouling Thin-Film Nanocomposite Forward Osmosis Membranes: Effect of Zwitterion-Functionalized Carbon Nanofiber Modification

Yassari,

Shakeri,

Karami

et al. 2023

Ind. Eng. Chem. Res.

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The polyamide (PA) active layer plays a key role in the permeation and antifouling properties of thin-film composite (TFC) membranes. In this study, we synthesized a nature-based zwitterionic thin-film nanocomposite (TFN) membrane with improved organic fouling resistance. Hydrophilic zwitterionic poly(sulfobetaine methacrylate) (PSBMA) was chemically introduced onto the surface of cellulose nanofibers (CNFs) to form CNF-g-PSBMA, which was subsequently incorporated into the PA selective layer. The cross-sectional transmission electron microscopy images and 3D atomic force microscopy surface topographies of synthesized TFC membranes showed that CNF-g-PSBMA led to the formation of a thinner and smoother PA layer. The performance of membranes was investigated in a forward osmosis (FO) filtration setup in two FO and pressure-retarded osmosis (PRO) modes. The water flux in FO and PRO modes showed an increase of 16.3 and 38 LMH, respectively, with a reverse salt flux similar to that of the pristine membrane. The modified TFN membranes revealed enhanced antifouling properties against sodium alginate and bovine serum albumin foulants up to four times compared with the unmodified TFC because of their improved hydrophilicity and smoother surface. The CNF-g-PSBMA-modified TFNs demonstrated great potential for use in FO filtration, thanks to the incorporation of nature-based green materials, which significantly enhanced the membrane performance.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrophilic Antifouling Thin-Film Nanocomposite Forward Osmosis Membranes: Effect of Zwitterion-Functionalized Carbon Nanofiber Modification

Yassari,

Shakeri,

Karami

et al. 2023

Ind. Eng. Chem. Res.

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“…Another derivative of cellulose, cellulose triacetate (CTA), possesses several desirable properties for membrane-based separations, including an exceptional ability to reject salt and practical mechanical strength, as well as improved oxidant resistance. CTA−based membranes tend to be more hydrophobic in comparison to CA membranes, results in better salt rejection but lower permeability [3]. Polymer nanocomposite membranes prepared by mixing hydrophilic nanofillers into polymer matrix have been used as a common strategy to improve membrane performance [4,5].…”

Section: Introductionmentioning

confidence: 99%

Cellulose Blended Membranes for High-Salinity Water Pervaporation Desalination

Fareed

Zafar

Saleem

et al. 2021

The 1st International Conference on Energy, Power and Environment

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In the current study, cellulose acetate (CA)/cellulose triacetate (CTA) nanocomposite membranes blended with zirconium dioxide (ZrO2) are prepared via phase inversion for pervaporation desalination performance. ZrO2 nanoparticles are added to enhance the hydrophilicity and porosity of the nanocomposite membranes. The fabricated nanocomposite membranes are characterized by SEM, FTIR, TGA, and DSC to study the surface morphology, chemical composition, thermal stability and strength. Nanocomposite membranes’ performance for pervaporation desalination is assessed as a function of feed concentration. Pervaporation results revealed that the nanocomposite membrane consisting of 2% ZrO2 achieved a maximum water flux of 6.5 kg/m2h, whereas the salt rejection was about 99.8%.

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Fabrication of Robust Forward Osmosis Membrane by Assembling FeO_xCl_y Nanoparticles

Roy,

Deka,

Gogoi

et al. 2024

Adv Funct Materials

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Owing to its inherent advantages like low‐energy consumption, low‐fouling propensity, and high recovering ability over high‐pressure‐driven membrane processes, the future of membrane technology is shifting toward forward osmosis (FO). However, the utility of FO in challenging areas is hindered by the lack of suitable FO membranes. Here, the development of innovative FO membranes by depositing weakly magnetic and positively charged FeOxCly nanoparticles on a negatively charged nylon membrane (FeOx‐Nyl) is reported. Remarkably, the FeOx‐Nyl membrane possesses outstanding stability in an aqueous medium and survived in both acidic (pH = 3.3) and basic (pH = 12.2) solutions. Upon varying the loading amount of FeOxCly, the water flux of the FeOx‐Nyl membrane varies from 27.8 to 61.3 LMH (from 5 to 30 mg). Due to its hydrophilic nature, the FeOx‐Nyl membrane exhibits excellent flux recovery rates (FRR), up to ≈70%. The outstanding robustness and high flux of FeOx‐Nyl are exploited in challenging applications like recovering reactive chemical wastes and dehydration of acetic acid.

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Highly porous cellulosic nanocomposite membranes with enhanced performance for forward osmosis desalination

Cited by 13 publications

References 41 publications

Hydrophilic Antifouling Thin-Film Nanocomposite Forward Osmosis Membranes: Effect of Zwitterion-Functionalized Carbon Nanofiber Modification

Hydrophilic Antifouling Thin-Film Nanocomposite Forward Osmosis Membranes: Effect of Zwitterion-Functionalized Carbon Nanofiber Modification

Cellulose Blended Membranes for High-Salinity Water Pervaporation Desalination

Fabrication of Robust Forward Osmosis Membrane by Assembling FeO_xCl_y Nanoparticles

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Highly porous cellulosic nanocomposite membranes with enhanced performance for forward osmosis desalination

Cited by 13 publications

References 41 publications

Hydrophilic Antifouling Thin-Film Nanocomposite Forward Osmosis Membranes: Effect of Zwitterion-Functionalized Carbon Nanofiber Modification

Hydrophilic Antifouling Thin-Film Nanocomposite Forward Osmosis Membranes: Effect of Zwitterion-Functionalized Carbon Nanofiber Modification

Cellulose Blended Membranes for High-Salinity Water Pervaporation Desalination

Fabrication of Robust Forward Osmosis Membrane by Assembling FeOxCly Nanoparticles

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Fabrication of Robust Forward Osmosis Membrane by Assembling FeO_xCl_y Nanoparticles