Amine Functionalized Electrospun Cellulose Nanofibers for Fluoride Adsorption from Drinking Water

Araga, Ramya; Sharma, Chandra Shekhar

doi:10.1007/s10924-019-01394-2

Cited by 37 publications

(11 citation statements)

References 28 publications

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“…On the other hand, the pore size and adsorption selectivity of the next layers are designed based on the application (Liu X. et al, 2019). Furthermore, deposition of the functionalized nanomaterials, on the mid or top layer, provides efficient adsorption performance to eliminate contaminants such as bacteria, viruses, heavy metal ions, dyes, and toxins (Karim et al, 2017;Araga and Sharma, 2019). The past few decades attempted to industrialize the electrospinning technique as the most versatile method for the production of nanofibrous networks.…”

Section: Introductionmentioning

confidence: 99%

Multilayered Bio-Based Electrospun Membranes: A Potential Porous Media for Filtration Applications

et al. 2020

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Among the different polymeric membranes, electrospun membranes have shown promising performance for filtration applications through the facile and controlled preparation method leading to tailored material structure. Furthermore, multilayered biobased electrospun membranes exhibited superior filtration performance, considering they are eco-friendly with superior mechanical properties and better adsorption efficiency compared to the single-layered electrospun membranes. The aim of this mini-review is to reveal the current state-of-art development of multilayered biobased electrospun membranes and to provide new insights into the future of tailored membranes toward practical applications.

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Section: Introductionmentioning

confidence: 99%

Multilayered Bio-Based Electrospun Membranes: A Potential Porous Media for Filtration Applications

et al. 2020

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“…Selection of appropriate adsorbents is a popular research topic in the development of efficient adsorption materials [8][9][10]. Natural polymer-based adsorbents are popular owing to their ecofriendliness [11,12]; some examples include magnetic iron-modified biopolymers [13,14], sodium alginate (Alg) [15,16], hydroxyapatite [17], K-carrageenan (Kc) [18,19], and cellulose [20,21]. Natural polymers have the advantages of low production cost, easy regeneration, high efficiency, recyclability, and comprehensive benefits, and they do not cause secondary pollution.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Pb(II) from Aqueous Solutions Using Nanocrystalline Cellulose/Sodium Alginate/K-Carrageenan Composite Hydrogel Beads

Shen

Ouyang

et al. 2021

J Polym Environ

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Based on the excellent performances of nanocrystalline cellulose, sodium alginate, or K-carrageenan in Pb 2+ adsorption, nanocrystalline cellulose/sodium alginate/K-carrageenan composite hydrogel beads were prepared to adsorb Pb(II) from aqueous solutions. The objective of this study was to demonstrate the excellent potential of the composite hydrogel beads for heavy metal ion adsorption. We successfully prepared ecofriendly Fe-modified nanocrystalline cellulose/sodium alginate/Kcarrageenan composite hydrogel beads and characterized them. The structure and adsorption mechanism were investigated using scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy, and the optimal adsorption conditions were determined. The tricomponent hydrogel beads were robust and exhibited improved adsorption capacity for Pb 2+ and good reusability. The adsorption results could be fitted well with a pseudo-second-order kinetic model and the Langmuir adsorption model. The maximum adsorption capacity obtained by fitting was 351.04 mg g −1 .Recycling experiments revealed that the adsorption capacity of the adsorbent remained high after five cycles of reuse.

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“…Recently, polymer nanocomposites have attracted a lot of attention to the adsorption of pollutants from water. Araga and Sharma 19 prepared amine‐functionalized cellulose nanofibers for fluoride adsorption from drinking water. They showed that the developed nanofibers mat was effective for high adsorption efficiency of fluoride ions from aqueous solution even at low concentration.…”

Section: Introductionmentioning

confidence: 99%

Dual‐functioning core@shell nanofiber strip for enhancing drinking water quality: Polysulfone/graphene oxide adsorbent core layer and polyvinylpyrrolidone/mint sacrificial shell layer

Hajiali

Khajavi

Kalaee

et al. 2021

J of Applied Polymer Sci

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Drinking water quality is considered a continuing concern of human health. Herein, for the improvement of water quality, dual functioning core‐shell (CS) nanofibers were developed by use of polysulfone (PSU)/graphene oxide (GO) as the adsorbent core layer for removing heavy metal ions and polyvinylpyrrolidone (PVP)/mint extract as the shell layer for inducing antioxidant activity to the water. Various analyses on the strip samples before and after the water treatment experiment were performed. ATR‐FTIR by appearing or disappearing chemical bonds, TEM micrographs based on the formation of shell layer around the nanofibers, FESEM according to the uniformity and diameter of nanofibers, and EDX analysis based on the elemental and mapping results, verified the core‐shell structure of nanofibers. The results of the antioxidant activity demonstrated that after the dissolution shell layer, radical scavenging capability of water was improved effectively. Thereafter, the remained core layer had a high capacity and efficiency for the adsorption of metal ions especially for CS3 with 70.9% and 58.7% efficiency for Fe(III) and Ni(II). By achieving 0.975 and 0.568 L/g partition coefficient (PC), the desired performance of CS3 (core layer: 15 wt% PSU, 0.5% GO and shell layer: 5 wt% PVP, and 2.5 wt% mint) was confirmed.

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Amine Functionalized Electrospun Cellulose Nanofibers for Fluoride Adsorption from Drinking Water

Cited by 37 publications

References 28 publications

Multilayered Bio-Based Electrospun Membranes: A Potential Porous Media for Filtration Applications

Multilayered Bio-Based Electrospun Membranes: A Potential Porous Media for Filtration Applications

Adsorption of Pb(II) from Aqueous Solutions Using Nanocrystalline Cellulose/Sodium Alginate/K-Carrageenan Composite Hydrogel Beads

Dual‐functioning core@shell nanofiber strip for enhancing drinking water quality: Polysulfone/graphene oxide adsorbent core layer and polyvinylpyrrolidone/mint sacrificial shell layer

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