Chitosan/(polyvinyl alcohol)/zeolite electrospun composite nanofibrous membrane for adsorption of Cr6+, Fe3+ and Ni2+

Habiba, Umma; Afifi, Amalina M.; Salleh, Areisman; Ang, Bee Chin

doi:10.1016/j.jhazmat.2016.06.028

Cited by 364 publications

(88 citation statements)

References 70 publications

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“…It was reported that the sorption of Pb 2+ ions on PVA-Co-MOF) were twice as compared to the PVA nanofiber. Habiba et al (2017) (2009) studied the removal of Cu(II) and Pb(II) ions from aqueous solution using electrospun chitosan nanofiber mats, neutralized with potassium carbonate, via adsorption. It was reported by Haider and Park that chitosan nanofiber mats had good erosion stability in water and high adsorption affinity for metal ions in an aqueous solution.…”

Section: Electrospun Nanofibersmentioning

confidence: 99%

Removal of heavy metals and pollutants by membrane adsorption techniques

2018

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Application of polymeric membranes for the adsorption of hazardous pollutants may lead to the development of next-generation reusable and portable water purification appliances. Membranes for membrane adsorption (MA) have the dual function of membrane filtration and adsorption to be very effective to remove trace amounts of pollutants such as cationic heavy metals, anionic phosphates and nitrates. In this review article, recent progresses in the development of MA membranes are surveyed. In addition, recent progresses in the development of advanced adsorbents such as nanoparticles are summarized, since they are potentially useful as fillers in the host membrane to enhance its performance. The future directions of R&D in this field are also shown in the conclusion section.

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Section: Electrospun Nanofibersmentioning

confidence: 99%

Removal of heavy metals and pollutants by membrane adsorption techniques

2018

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“…Chitosan (CS) is produced by the deacetylation of chitin, which is the main component of the exoskeleton of some crustaceans (such as crabs). CS, which is biodegradable, non-toxic, and potentially antibacterial, has been used extensively in biomedical applications, including tissue engineering [11]. The use of CS for fabricating new materials has also produced notable results.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Sodium Carboxymethyl Cellulose/Sodium Alginate/Chitosan Composite Film

2018

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A sodium alginate/chitosan solution was prepared by dissolving sodium alginate, chitosan, and glycerol in an acetic acid solution. This solution was then combined with a sodium carboxymethyl cellulose solution and the mixture was cast onto a glass plate and dried at a constant temperature of 60 • C. Then, a carboxymethyl cellulose/sodium alginate/chitosan composite film was obtained by immersing the film in a solution of a cross-linking agent, CaCl 2 , and air-drying the resulting material. First, the most advantageous contents of the three precursors in the casting solution were determined by a completely random design test method. Thereafter, a comprehensive orthogonal experimental design was applied to select the optimal mass ratio of the three precursors. The composite film obtained with sodium alginate, sodium carboxymethyl cellulose, and chitosan contents of 1.5%, 0.5%, and 1.5%, respectively, in the casting solution displayed excellent tensile strength, water vapor transmission rate, and elongation after fracture. Moreover, the presence of chitosan successfully inhibited the growth and reproduction of microorganisms. The composite film exhibited antibacterial rates of 95.7% ± 5.4% and 93.4% ± 4.7% against Escherichia coli and Staphylococcus aureus, respectively. Therefore, the composite film is promising for antibacterial food packaging applications.

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“…The high surface areas make them good candidates for exploring high performance absorbents for removal of hexavalent chromium. For example, various polymers including polyacrylonitrile, polyethyleneimine, and chitosan have been employed to prepare polymer nanofiber mats and their ability for removal of Cu 2+ , Pb 2+ , Cr 6+ , and Cd 2+ has been investigated . However, most polymers are hydrophobic and lack typical functional groups for adsorption of heavy metal ions.…”

Section: Introductionmentioning

confidence: 99%

Sulfonated poly(arylene ether nitrile)/polypyrrole core/shell nanofibrous mat: an efficient absorbent for the removal of hexavalent chromium from aqueous solution

Zhan

Wan

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Sulfonated poly(arylene ether nitrile)/polypyrrole core/shell nanofibrous mats were prepared by an electrospinning technique, followed by in situ polymerization of pyrrole monomer. Their removal of hexavalent chromium (Cr (VI)) from aqueous solution was systematically investigated. The structure and composition of core/shell PEN/PPy nanofibrous mats were examined and confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR‐FTIR), X‐ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). RESULTS The adsorption results revealed that the adsorption capacity of core/shell PEN/PPy nanofibrous mats increased with the decrease of initial solution pH and the adsorption process can be described by the pseudo‐second‐order model. These core/shell PEN/PPy nanofibrous mats showed high Cr (VI) adsorption capacity up to 165.3 mg g−1 at room temperature, which can largely be maintained after four adsorption/desorption cycles. Furthermore, the adsorption isotherms of PEN/PPy nanofibrous mats for Cr(VI) removal fitted the Langmuir isotherm model. The adsorption mechanism of electrostatic attraction between PEN/PPy nanofibrous mats was also presented. CONCLUSION The core/shell PEN/PPy nanofibrous mats in the form of flexible membrane allowed easy handling during application, and can be considered a stable and effective adsorbent for removal of heavy metals and other anionic contaminants from wastewater. © 2017 Society of Chemical Industry

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Chitosan/(polyvinyl alcohol)/zeolite electrospun composite nanofibrous membrane for adsorption of Cr6+, Fe3+ and Ni2+

Cited by 364 publications

References 70 publications

Removal of heavy metals and pollutants by membrane adsorption techniques

Removal of heavy metals and pollutants by membrane adsorption techniques

Preparation and Properties of Sodium Carboxymethyl Cellulose/Sodium Alginate/Chitosan Composite Film

Sulfonated poly(arylene ether nitrile)/polypyrrole core/shell nanofibrous mat: an efficient absorbent for the removal of hexavalent chromium from aqueous solution

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