Fabrication of Electrospun Cellulose Acetate/Nanoclay Composites for Pollutant Removal

Tsekova, Petya; Stoilova, Olya

doi:10.3390/polym14235070

Cited by 4 publications

(1 citation statement)

References 55 publications

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“…It has appealing properties such as being renewable, environmentally friendly, cost-effective, non-toxic, bio-degradable, bio-compatible, having a great degree of crystallinity, an extraordinary degree of polymerization, an elevation tensile strength, being highly crystalline, and having a high specific surface area 21 – 23 . Notable investigations on cellulose acetate & nano-clay composites on electrospinning were undertaken; however, an effective approach to properly using cellulose acetate and clay for removing pollutants is still lacking 24 – 26 .…”

Section: Introductionmentioning

confidence: 99%

Electrospun cellulose acetate/activated carbon composite modified by EDTA (rC/AC-EDTA) for efficient methylene blue dye removal

Elmaghraby

Omer

Kenawy

et al. 2023

Sci Rep

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The present study fabricated regenerated cellulose nanofiber incorporated with activated carbon and functionalized rC/AC3.7 with EDTA reagent for methylene blue (MB) dye removal. The rC/AC3.7 was fabricated by electrospinning cellulose acetate (CA) with activated carbon (AC) solution followed by deacetylation. FT-IR spectroscopy was applied to prove the chemical structures. In contrast, BET, SEM, TGA and DSC analyses were applied to study the fiber diameter and structure morphology, the thermal properties and the surface properties of rC/AC3.7-EDTA. The CA was successfully deacetylated to give regenerated cellulose nanofiber/activated carbon, and then ethylenediaminetetraacetic acid dianhydride was used to functionalize the fabricated nanofiber composite. The rC/AC3.7-EDTA, rC/AC5.5-EDTA and rC/AC6.7-EDTA were tested for adsorption of MB dye with maximum removal percentages reaching 97.48, 90.44 and 94.17%, respectively. The best circumstances for batch absorption experiments of MB dye on rC/AC3.7-EDTA were pH 7, an adsorbent dose of 2 g/L, and a starting MB dye concentration of 20 mg/L for 180 min of contact time, with a maximum removal percentage of 99.14%. The best-fit isotherm models are Temkin and Hasely. The outcome of isotherm models illustrates the applicability of the Langmuir isotherm model (LIM). The maximal monolayer capacity Qm determined from the linear LIM is 60.61 for 0.5 g/L of rC/AC3.7-EDTA. However, based on the results from error function studies, the generalized isotherm model has the lowest accuracy. The data obtained by the kinetic models’ studies exposed that the absorption system follows the pseudo-second-order kinetic model (PSOM) throughout the absorption period.

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Section: Introductionmentioning

confidence: 99%

Electrospun cellulose acetate/activated carbon composite modified by EDTA (rC/AC-EDTA) for efficient methylene blue dye removal

Elmaghraby

Omer

Kenawy

et al. 2023

Sci Rep

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Use of Electrospun Cellulose Acetate/Silica Composites as Multifunctional Ingredients in Eco‐Friendly Semisolid Lubricant Formulations

Toro‐Gallego,

Valencia,

Sánchez

et al. 2024

J of Applied Polymer Sci

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Cellulose acetate/silica (CA/SIL) nanocomposites are prepared by electrospinning and investigated as multifunctional ingredients in eco‐friendly semisolid lubricant formulations. The structuring ability of these electrospun composites in castor oil and the antifriction and antiwear properties are examined through rheological and tribological experiments. The multifunctionality of CA/SIL composites arises from a balance between the silica content and the formation of nanofiber‐dominated structures. The linear viscoelasticity functions in the oleo‐dispersions increase by several orders of magnitude with both the spinning solution concentration and the CA:SIL ratio. However, the rheological response primarily depends on the morphology of the nanofiber mat obtained, specifically nanofiber diameter and the presence of beads. In contrast, the silica content significantly impacts the tribological performance of the oleo‐dispersions regardless of nanofiber morphology. For similar nanoarchitectures and rheological responses, the friction coefficient is reduced from 0.227 to 0.108 by incorporating silica in a 10:1 CA:SIL ratio, compared with the SIL‐free electrospun CA nanofibers, while wear is completely prevented. Increasing the composite concentration from 5 to 12.5 wt. % enhances wear protection and the gel strength of oleo‐dispersions, for example, the plateau modulus rises from 800 to 42,000 Pa using a composite with a 10:1 CA:SIL ratio.

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Electrospinning of cellulose acetate for methylene blue dye removal

S V,

Subash,

Gholap

et al. 2024

Hybrid Advances

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Fabrication of Electrospun Cellulose Acetate/Nanoclay Composites for Pollutant Removal

Cited by 4 publications

References 55 publications

Electrospun cellulose acetate/activated carbon composite modified by EDTA (rC/AC-EDTA) for efficient methylene blue dye removal

Electrospun cellulose acetate/activated carbon composite modified by EDTA (rC/AC-EDTA) for efficient methylene blue dye removal

Use of Electrospun Cellulose Acetate/Silica Composites as Multifunctional Ingredients in Eco‐Friendly Semisolid Lubricant Formulations

Electrospinning of cellulose acetate for methylene blue dye removal

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