Electrospinning of multifunctional cellulose acetate membrane and its adsorption properties for ionic dyes

Chen, Wenjuan; Ma, Hongzhu; Xing, Baoshan

doi:10.1016/j.ijbiomac.2020.04.249

Cited by 88 publications

(44 citation statements)

References 54 publications

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“…Eventually, all active sites get occupied by dye molecules and the adsorption capacity remains almost constant 78 . Chen et al 79 reported that on increasing the contact time from 20 to 180 min, Congo red adsorption capacity of PDA@DCA-COOH membrane enhances from 30 mg/g to 79.33 mg/g. After 180 min, no further improvement in the adsorption capacity was noted and thus the authors selected 180 min for performing the adsorption studies.…”

Section: Resultsmentioning

confidence: 99%

“…Knowledge of adsorption isotherm is essential to design the adsorption system, as it shed light on adsorbate-adsorbent interaction and adsorption capacity of the adsorbent. Freundlich, Langmuir, Temkin and Dubinin-Radushkevich isotherm models are commonly used to understand the adsorption process 79 , 81 . In the present work, the adsorption behavior of the prepared membrane was evaluated using Freundlich and Langmuir isotherm models.…”

Section: Resultsmentioning

confidence: 99%

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Removal of anionic dye Congo red from aqueous environment using polyvinyl alcohol/sodium alginate/ZSM-5 zeolite membrane

Radoor

Karayil²,

Parameswaranpillai

et al. 2020

Sci Rep

101

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In this study, a novel PVA/SA/ZSM-5 zeolite membrane with good regeneration capacity was successfully prepared by solvent casting technique. The properties of the membranes were assessed by employing different characterization techniques such as X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), optical microscopy (OP), thermogravimetric analysis (TGA), contact angle and universal testing machine (UTM). XRD, TGA and UTM results revealed that the crystallinity and thermo-mechanical performance of the membrane could be tuned with zeolite content. The successful incorporation of zeolite into the polymer matrix was confirmed by FT-IR, SEM and OP analysis. The adsorption ability of the as-prepared membrane was evaluated with a model anionic dye, Congo red. Adsorption studies show that the removal efficiency of the membrane could be tuned by varying zeolite content, initial concentration of dye, contact time, pH and temperature. Maximum dye adsorption (5.33 mg/g) was observed for 2.5 wt% zeolite loaded membrane, at an initial dye concentration of 10 ppm, pH 3 and temperature 30 °C. The antibacterial efficiency of the membrane against gram-positive (Staphylococcus aureus) and gram-negative bacteria (Escherichia coli) was also reported. The results show that membrane inhibits the growth of both gram-positive and gram-negative bacteria. The adsorption isotherm was studied using two models: Langmuir and Freundlich isotherm. The results show that the experimental data fitted well with Freundlich isotherm with a high correlation coefficient (R2 = 0.998). Meanwhile, the kinetic studies demonstrate that pseudo-second-order (R2 = 0.999) model describe the adsorption of Congo red onto PVA/SA/ZSM-5 zeolite membrane better than pseudo-first-order (R2 = 0.972) and intra particle diffusion model (R2 = 0.91). The experimental studies thus suggest that PVA/SA/ZSM-5 zeolite could be a promising candidate for the removal of Congo red from aqueous solution.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Removal of anionic dye Congo red from aqueous environment using polyvinyl alcohol/sodium alginate/ZSM-5 zeolite membrane

Radoor

Karayil²,

Parameswaranpillai

et al. 2020

Sci Rep

101

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“…The strategies involved in the modification of natural fibers or their incorporation in hybrid composites recognize the effi- [11] Acid blue 80 292.28 [11] Corn fibers Alcian blue 159.00 [57] Methylene blue 70.00 [57] Neutral red 50.00 [57] Brilliant blue 35.00 [57] Silver nanoparticles loaded on activated carbon prepared from Rosa canine tree Malachite green 105.00 [59] Methylene blue 81.43 [59] Corn silk Reactive blue 19 71.60 [24] Reactive red 218 63.30 [24] Green coconut mesocarp Remazol Brilliant violet 7.28 [32] Remazol red 3.97 [32] Wood Remazol red 0.71 [32] Remazol Brilliant violet 0.64 [32] Natural cotton-based activated flexible carbon fiber aerogels Methylene blue 102.23 [22] Wood apple shells Malachite green 80.64 [60] Tunisian Phragmites australis Methylene blue 41.20 [10] Eggshell membrane Methylene blue 25.48 [58] Unmodified Populus tremula fiber Acid blue 25 22.33 [12] Grafted Luffa cylindrical fiber Congo red 19.24 [61] cient use of limited resources, which are based on the "trash to treasure" methodology considering that science and technology can close the loop, satisfying the concepts of the circular economy. [13,14] The advantages of synthetic fibers include the controlled intermolecular interactions, porosity, and the production of hierarchical structures that can be employed not only as adsorbents (for simultaneous removal of cationic and anionic dyes) [62] and multifunctional devices used in different applications such as supercapacitors and batteries. [63] Electrospinning is a simple experimental method applied in the production of polymer fiber mats at nano-and microscale.…”

Section: Synthetic Fibersmentioning

confidence: 99%

Natural and Synthetic Fiber‐Based Adsorbents for Water Remediation

Candido

Pires

2021

CLEAN Soil Air Water

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The use of unmodified and chemically treated natural fibers for water remediation (removal of chemical residues/oil spills and organic wastewater from water) is a significant and low-cost strategy to reduce the contamination of aquifers with metal ions, as well as marine environments with oil spills and water bodies with organic dyes. Furthermore, synthetic fibers exhibit a superior performance owing to their tunable surface area and superhydrophobic/swelling properties. This review summarizes the most recent advances in natural fiber-based biosorbents and synthetic fiber mats since the efficient removal of toxic compounds depend on adequate incorporation of functional groups on the fiber surface for mutual electrostatic and diffusion of contaminants into the fibrils. The most relevant results in the removal of oil, trace metal ions, and organic dyes are presented and evaluated. The evaluation is done according to the strategies for chemical modification of raw materials by the reuse of plastics or conventional electrospinning techniques to support the hierarchical growth of more complex chemical structures.

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“…109 Researchers have successfully grafted carboxyl and hydroxyl multifunctional groups on the surface of the nanofibers by deacetylation, carboxymethylation. 110 Strong electrostatic attraction through the abundant functional groups result in excellent adsorption capacities of the membrane.…”

Section: Surface Modificationmentioning

confidence: 99%

“…57 Bioactive substance like polydopamine (pDA) coating technology is also mentioned. 24,110 In previous study, human gingival fibroblasts (HGF) grew faster on pDA-coated PCL electrospun scaffolds, which means the great potential application of coating in the usage of periodontal tissue regeneration. 120 However, its effect on different cells varies.…”

Section: Surface Modificationmentioning

confidence: 99%

Biodegradable engineered fiber scaffolds fabricated by electrospinning for periodontal tissue regeneration

Ren

et al. 2020

J Biomater Appl

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Considering the specificity of periodontium and the unique advantages of electrospinning, this technology has been used to fabricate biodegradable tissue engineering materials for functional periodontal regeneration. For better biomedical quality, a continuous technological progress of electrospinning has been performed. Based on property of materials (natural, synthetic or composites) and additive novel methods (drug loading, surface modification, structure adjustment or 3 D technique), various novel membranes and scaffolds that could not only relief inflammation but also influence the biological behaviors of cells have been fabricated to achieve more effective periodontal regeneration. This review provides an overview of the usage of electrospinning materials in treatments of periodontitis, in order to get to know the existing research situation and find treatment breakthroughs of the periodontal diseases.

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Electrospinning of multifunctional cellulose acetate membrane and its adsorption properties for ionic dyes

Cited by 88 publications

References 54 publications

Removal of anionic dye Congo red from aqueous environment using polyvinyl alcohol/sodium alginate/ZSM-5 zeolite membrane

Removal of anionic dye Congo red from aqueous environment using polyvinyl alcohol/sodium alginate/ZSM-5 zeolite membrane

Natural and Synthetic Fiber‐Based Adsorbents for Water Remediation

Biodegradable engineered fiber scaffolds fabricated by electrospinning for periodontal tissue regeneration

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