Ultra-high flux alkali-treated cellulose triacetate/cellulose nanocrystal nanocomposite membrane for pervaporation desalination

Prihatiningtyas, Indah; Hartanto, Yusak; Bruggen, Bart Van der

doi:10.1016/j.ces.2020.116276

Cited by 28 publications

(14 citation statements)

References 45 publications

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“…In a study by Prihatiningtyas and group [ 118 ], the team developed a nanocomposite membrane with varying quantities of feed solution and tested its permeability and salt rejection without compromising its selectivity. The team noticed an increase in the CTA/CNCs membrane’s water flux as compared to an unmodified membrane that produced flux of (3.6 kg m −2 h −1 ).…”

Section: Application Of Cellulose Nanocrystals In Desalination Applic...mentioning

confidence: 99%

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

2022

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Membrane-based desalination has proved to be the best solution for solving the water shortage issues globally. Membranes are extremely beneficial in the effective recovery of clean water from contaminated water sources, however, the durability as well as the separation efficiency of the membranes are restricted by the type of membrane materials/additives used in the preparation processes. Nanocellulose is one of the most promising green materials for nanocomposite preparation due to its biodegradability, renewability, abundance, easy modification, and exceptional mechanical properties. This nanocellulose has been used in membrane development for desalination application in the recent past. The study discusses the application of membranes based on different nanocellulose forms such as cellulose nanocrystals, cellulose nanofibrils, and bacterial nanocellulose for water desalination applications such as nanofiltration, reverse osmosis, pervaporation, forward osmosis, and membrane distillation. From the analysis of studies, it was confirmed that the nanocellulose-based membranes are effective in the desalination application. The chemical modification of nanocellulose can definitely improve the surface affinity as well as the reactivity of membranes for the efficient separation of specific contaminants/ions.

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Section: Application Of Cellulose Nanocrystals In Desalination Applic...mentioning

confidence: 99%

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

2022

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“…As shown in Fig. 2e , compared to the pristine HC film, both etched samples (3-h treatment of non-prewetted HC and 30-s treatment of prewetted HC) display severely weakened absorbance at ~1737 cm −1 (C=O) and enhanced absorbance at ~3331 cm −1 (-OH), indicating that the formation of etched porous structures is due to the base-catalytic deacetylation of CTA 49 – 52 . Meanwhile, the changed microstructure and exposed -OH group contribute to the improved hydrophilicity.…”

Section: Resultsmentioning

confidence: 96%

A confined-etching strategy for intrinsic anisotropic surface wetting patterning

et al. 2022

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Anisotropic functional patterned surfaces have shown significant applications in microfluidics, biomedicine and optoelectronics. However, surface patterning relies heavily on high-end apparatuses and expensive moulds/masks and photoresists. Decomposition behaviors of polymers have been widely studied in material science, but as-created chemical and physical structural changes have been rarely considered as an opportunity for wettability manipulation. Here, a facile mask-free confined-etching strategy is reported for intrinsic wettable surface patterning. With printing technology, the surface wetting state is regulated, enabling the chemical etching of setting locations and efficient fabrication of complex patterns. Notably, the created anisotropic patterns can be used for realizing water-responsive information storage and encryption as well as fabricating flexible electrodes. Featuring advantages of simple operation and economic friendliness, this patterning approach brings a bright prospect in developing functional materials with versatile applications.

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“…For instance, a spray-coated PVA-based active layer on electrospun nanofibers (PAN-made) resulted in a flux of ~235 kg m −2 h −1 (at 75 °C and 1.5 wt.% NaCl) [90]. In another work, a cellulose triacetate/cellulose nanocrystals mixed-matrix membrane permitted water fluxes ~107 kg m −2 h −1 at 70 °C and 90,000 ppm NaCl feed concentration [91]. Fig.…”

Section: Comparison With Previously Reported Membranesmentioning

confidence: 96%

Hydrophobic polydimethylsiloxane thin-film composite membranes for the efficient pervaporative desalination of seawater and brines

Genduso

Missinne

Ali

et al. 2022

Separation and Purification Technology

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Ultra-high flux alkali-treated cellulose triacetate/cellulose nanocrystal nanocomposite membrane for pervaporation desalination

Cited by 28 publications

References 45 publications

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

Progress and Prospects of Nanocellulose-Based Membranes for Desalination and Water Treatment

A confined-etching strategy for intrinsic anisotropic surface wetting patterning

Hydrophobic polydimethylsiloxane thin-film composite membranes for the efficient pervaporative desalination of seawater and brines

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