Nanocellulose acetate membranes: Preparation and application

Al-Rawi, Ahmed S.; Al-Khateeb, Ismail K.; Zaidan, Tahseen A.

doi:10.1016/j.enmm.2021.100529

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…Pure CA membrane presented the main characteristic peaks around 3420 cm −1 corresponding to stretching vibration of hydroxyl bond (-OH), the band assigned to 1735 cm −1 corresponding to C=O bond of the acetyl groups. The band localized to 1360 cm −1 is corresponding to the vibrations of the CH 3 groups present in the acetate group, the peak localized at 1210 cm −1 corresponding to acetyl group; the peak around 1030 cm −1 is related to pyranose ring [40]. CNC membrane presented two main bands at 3400 cm −1 and 2893 cm −1 corresponding to -OH and CH stretching vibrations, respectively.…”

Section: Membrane Characterizationmentioning

confidence: 98%

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg_0.975Ni_0.025SiO₃ membrane for removal of diclofenac sodium and methylene blue dye in water

García-Ramírez,

Diaz-Torres

2023

Nanotechnology

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Recalcitrant pollutants present in wastewater, without an effective treatment, have several effects on aquatic ecosystems and human health due to their chemical structure and persistence. Therefore, it is crucial the development of efficient technologies to eliminate such pollutants in water. Nano-photocatalysts are considered a promising technology for water remediation; however, one common drawback is the difficulty of recovering it after water processing. One effective strategy to overcome such problem is its immobilization into substrates such as polymeric membranes. In this study, a polymeric membrane with embedded Mg0.975Ni0.025SiO3 is proposed to remove model pollutants diclofenac sodium and methylene blue dye by synergetic adsorption and photocatalytic processes. Mg0.975Ni0.025SiO3 was synthesized by the combustion method. The matrix polymeric blend consisting of a blend of cellulose acetate, crystalline nanocellulose and polyvinylidene fluoride was obtained by the phase inversion method. The composite membranes were characterized by FTIR, X-Ray Diffraction, and scanning electron microscopy. With pollutant solutions at pH 7, the pollutant adsorption capacity of the membranes reached up to 30% and 45% removal efficiencies for diclofenac sodium and methylene blue, respectively. Under simulated solar irradiation photocatalytic removal performances of 70% for diclofenac sodium pH 7, and of 97% for methylene blue dye at pH 13, were reached. The membrane photocatalytic activity allows the membrane to avoid pollutant accumulation on its surface, given a self-cleaning property that allows the reuse of at least three cycles under sunlight simulator irradiation. These results suggest the high potential of photocatalytic membranes using suitable and economical materials such as cellulosic compounds and magnesium silicates for water remediation.

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Section: Membrane Characterizationmentioning

confidence: 98%

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg_0.975Ni_0.025SiO₃ membrane for removal of diclofenac sodium and methylene blue dye in water

García-Ramírez,

Diaz-Torres

2023

Nanotechnology

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“…This process is dependent on the hydrophilic nature of the hydroxyl group on nanocellulose in amorphous and crystalline regions within the cellulose polymer chain, as it eventually turns to hydrophobic. Acetylation allows for optimal cellulose fiber dispersion in the polymer matrix during compounding, economical, convenient, rapid production times, and environmentally friendly [ 55 ].…”

Section: Recent Development In Nanocellulose-based Membranesmentioning

confidence: 99%

Recent Development and Environmental Applications of Nanocellulose-Based Membranes

et al. 2022

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Extensive research and development in the production of nanocellulose production, a green, bio-based, and renewable biomaterial has paved the way for the development of advanced functional materials for a multitude of applications. From a membrane technology perspective, the exceptional mechanical strength, high crystallinity, tunable surface chemistry, and anti-fouling behavior of nanocellulose, manifested from its structural and nanodimensional properties are particularly attractive. Thus, an opportunity has emerged to exploit these features to develop nanocellulose-based membranes for environmental applications. This review provides insights into the prospect of nanocellulose as a matrix or as an additive to enhance membrane performance in water filtration, environmental remediation, and the development of pollutant sensors and energy devices, focusing on the most recent progress from 2017 to 2022. A brief overview of the strategies to tailor the nanocellulose surface chemistry for the effective removal of specific pollutants and nanocellulose-based membrane fabrication approaches are also presented. The major challenges and future directions associated with the environmental applications of nanocellulose-based membranes are put into perspective, with primary emphasis on advanced multifunctional membranes.

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Characterization and use of activated carbon synthesized from sunflower seed shell in the removal of Pb(II), Cd(II), and Cr(III) ions from aqueous solution

Mawlood,

Saod,

Al-Rawi

et al. 2024

Environ Monit Assess

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Nanocellulose acetate membranes: Preparation and application

Cited by 4 publications

References 24 publications

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg_0.975Ni_0.025SiO₃ membrane for removal of diclofenac sodium and methylene blue dye in water

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg_0.975Ni_0.025SiO₃ membrane for removal of diclofenac sodium and methylene blue dye in water

Recent Development and Environmental Applications of Nanocellulose-Based Membranes

Characterization and use of activated carbon synthesized from sunflower seed shell in the removal of Pb(II), Cd(II), and Cr(III) ions from aqueous solution

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Nanocellulose acetate membranes: Preparation and application

Cited by 4 publications

References 24 publications

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg0.975Ni0.025SiO3 membrane for removal of diclofenac sodium and methylene blue dye in water

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg0.975Ni0.025SiO3 membrane for removal of diclofenac sodium and methylene blue dye in water

Recent Development and Environmental Applications of Nanocellulose-Based Membranes

Characterization and use of activated carbon synthesized from sunflower seed shell in the removal of Pb(II), Cd(II), and Cr(III) ions from aqueous solution

Contact Info

Product

Resources

About

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg_0.975Ni_0.025SiO₃ membrane for removal of diclofenac sodium and methylene blue dye in water

Self-cleaning cellulose acetate/crystalline nanocellulose/polyvinylidene fluoride/Mg_0.975Ni_0.025SiO₃ membrane for removal of diclofenac sodium and methylene blue dye in water