Removal of various anionic dyes using sodium alginate/poly(N-vinyl-2-pyrrolidone) blend hydrogel beads

İnal, Murat; Erduran, Nuran

doi:10.1007/s00289-015-1367-7

Cited by 55 publications

(11 citation statements)

References 54 publications

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“…Thus, SA readily complexes with cations such as divalent calcium, magnesium and zinc, with the potential to form gels for applications such as absorption and use in controlled drug release [26,27]. This latter application is further optimized because of SA having biocompatibility, biodegradability and non-toxicity properties [28]. Du used sodium alginate as carrier to immobilize sludge-based biomass carbon to prepare a new type of environmental friendly and economical adsorbent for copper removal, sodium alginate immobilized sludge carbon (SASC) [29].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Removal of Sb (III) from Water: A Fe3O4@HCO Composite Adsorbent Caged in Sodium Alginate Microbeads

et al. 2020

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To remove antimony (Sb) ions from water, a novel composite adsorbent was fabricated from ferriferous oxide and waste sludge from a chemical polishing process (Fe3O4@HCO) and encapsulated in sodium alginate (SAB). The SAB adsorbent performed well with 80%–96% removal of Sb (III) ions within a concentration range of 5–60 mg/L. The adsorption mechanism of Sb (III) was revealed to be the synergy of chemisorption (ion exchange) and physisorption (diffusion reaction). The adsorption isotherms and kinetics conformed to the Langmuir isotherm and the pesudo-second-order kinetic model. Both initial pH and temperature influenced the adsorption performance with no collapse of microbeads within solution pH range 3–7. Most importantly for practical applications, these microspheres can be separated and recovered from aqueous solution by a magnetic separation technology to facilitate large-scale treatment of antimony-containing wastewater.

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Section: Introductionmentioning

confidence: 99%

Enhancing the Removal of Sb (III) from Water: A Fe3O4@HCO Composite Adsorbent Caged in Sodium Alginate Microbeads

et al. 2020

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“…Polysaccharides have been added to other synthetic biodegradablep olymers in order to impart desired properties such as improved mechanical strength, swelling capability with retention of shape, endowment of pH sensitivity and enhancement of biodegradability.S uperabsorbent hydrogels with favorable swelling and mechanical properties were obtained by crosslinking various polysaccharides and polysaccharide-synthetic mixtures such as tara gum-acrylica cid, [46] bacterial cellulose-acrylic acid, [47] dextran-poly(e-caprolactone), [48] chitosanpoly(ethylene glycol), [49] chitosan-cyclodextrin, [50] modified hemicellulose-N-isopropylacrylamide, [51] CMC-poly(acrylic acid), [52] modified chitosan-carbopol, [53] alginate-poly(N-vinyl-2pyrrolidone), [54] alginate-polyacrylamide, [55] chitosan-chondroitin-6-sulfate, [56] psyllium-acrylamide and 2-acrylamido-2-methylpropanesulfonic acid, [57] psyllium-acrylic acid, [58] xanthanpoly(acrylic acid)-poly(vinyl alcohol) [59] and chitosan-gelatin, [60] chitosan-poly(vinyla lcohol). [61] These semisynthetic hydrogels have aw ide variety of biomedical applications, such as controlledr elease drugd elivery, [47,57,[61][62] wound dressings, [61,63] tissue engineering [36,64] and gene therapy.…”

Section: Crosslinking In Polysaccharides and Synthetic Biodegradable mentioning

confidence: 99%

Biodegradable Polysaccharides for Controlled Drug Delivery

et al. 2016

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Polysaccharides are ideal candidates for drug delivery and biomedical applications as they are easily obtained from natural sources. Furthermore, they can be subjected to a wide range of chemical and enzymatic reactions, they have biocompatible and biodegradable properties and have inherently low immunogenicity. Polysaccharides are potentially the materials of choice for the development of “smart” delivery systems, which are capable of releasing, at the appropriate time and site of action, an encapsulated drug. This Review examines various aspects of the crosslinking of polysaccharides, either for a single polysaccharide or mixtures, and also natural–synthetic hybrids. The Review focuses on the strategies for using these biodegradable polymers for controlled drug delivery, and examines in particular polysaccharide–drug conjugates, the encapsulation of drugs in hydrogels and aerogels, and the self‐assembly of polysaccharide drug‐loaded nanoparticles.

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“…Anthropogenic pollutants in nature have been a huge problem for a long time. There were numerous attempts in the last several years to remove these chemicals owning various properties (Shawabkeh 2006;Ayar et al 2008;Zhao et al 2014;Acar et al 2015;Hassani et al 2015;İnal and Erduran 2015;Belhouchat et al 2017;Chen et al 2017;Dinu et al 2017;Phiri et al 2019;Duman et al 2020). One of the most widely used technics is sorption, wherewith these contaminants can be removed.…”

Section: Introductionmentioning

confidence: 99%

“…The diverse properties can be attributed to the fact that the residues of guluronic acid have higher affinity to the divalent cations than the residues of mannuronic acid; moreover, the different divalent cations have different affinities to the monomers of alginate (de Vos et al 2014;Hecht and Srebnik 2016;Wang et al 2019). Utilization of alginate is multivarious, for example, it has been already used for removing pollutants, such as 4-nitrophenol (Peretz and Cinteza 2008), toluene (Phiri et al 2019) or dyes (Hassani et al 2015;İnal and Erduran 2015;Belhouchat et al 2017;Dinu et al 2017). Furthermore, numerous studies can be found in the literature, in which alginate was used as an encapsulation, immobilizing media, where such as Vitamin B 12 and polyethylene glycol (Puguan et al 2015), β-glucuronidase enzyme (Li et al 2009), enzyme yeast alcohol dehydrogenase (Xu et al 2007), glucose oxidase enzyme (Blandino et al 2001), ovalbumin protein (Yu et al 2019) or thyme extract (Stojanovic et al 2012) were immobilized.…”

Section: Introductionmentioning

confidence: 99%

Sorption of potential ionic pollutants on oil shale and its non-series composite sorbents

Molnár

Földényi

Horváth

2020

Int. J. Environ. Sci. Technol.

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Huge amounts of anthropogenic environmental pollutants appearing in nature mean an emerging problem. Oil shale is a convenient candidate, wherewith these contaminations can be removed from our natural environment, taking into account its sorption ability and low price. However, oil shale has a crumbling nature, which restricts its facile usage. Hence, oil shale was transformed into more handleable forms, using binding materials. Two oil shale composite forms were prepared by applying sodium alginate and agar. A cationic and an anionic chemicals, benzyltriethylammonium chloride and sodium 2,3-diisopropylnaphthalene-1-sulfonate, respectively, were used as model pollutants, and their sorptions on these newly prepared composites were studied. Sorption properties of oil shale powder and oil shale composites were compared. In the composite materials, oil shale properly sorbed the model pollutants (the binding material did not cover the sorption sites); furthermore, oil shale composites had significantly higher removal efficiency compared to that of the oil shale powder: 208 ± 15.6 (oil shale–agar) and 171 ± 22.8 (oil shale–alginate) vs 140 ± 11.1 µmol/g for the cationic compound; 151 ± 1.6 (oil shale–agar) and 165 ± 7.6 (oil shale–alginate) vs 81.5 ± 2.6 µmol/g for the anionic compound. Results of diffusion models for the two composites show that the opposite charges of the solutes largely influence the rate of their diffusion, owing to the interaction between the solute and the composite material. These results indicate that oil shale and its composites are applicable candidates as sorbents, from which the most effective one can be chosen by considering the chemical properties of the actual pollutant to be removed.

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Removal of various anionic dyes using sodium alginate/poly(N-vinyl-2-pyrrolidone) blend hydrogel beads

Cited by 55 publications

References 54 publications

Enhancing the Removal of Sb (III) from Water: A Fe3O4@HCO Composite Adsorbent Caged in Sodium Alginate Microbeads

Enhancing the Removal of Sb (III) from Water: A Fe3O4@HCO Composite Adsorbent Caged in Sodium Alginate Microbeads

Biodegradable Polysaccharides for Controlled Drug Delivery

Sorption of potential ionic pollutants on oil shale and its non-series composite sorbents

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