Investigation of complex formation between (sodium alginate/acrylamide) semi-interpenetrating polymer networks and lead, cadmium, nickel ions

Şolpan, Dilek; Torun, Murat

doi:10.1016/j.colsurfa.2005.04.035

Cited by 24 publications

(9 citation statements)

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“…For separation of toxic heavy metal ions, natural poly-␥-glutamic acid (␥-PGA) and other natural polymers have been investigated [3,5]. The aggregate size distribution in flocculants was studied and it was found that it mainly depended on the pH and concentration of the electrolytes [15].…”

Section: Introductionmentioning

confidence: 99%

“…Biomacromolecules have an important role in a wide range of industrial fields including water treatment [3,4]. For separation of toxic heavy metal ions, including lead ions, several natural polymers have been investigated [5,6]. The most valuable properties of these biopolymers are their biocompatibility, biodegradability, and flocculating activity for metal ions [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Nanoparticles formed by complexation of poly-gamma-glutamic acid with lead ions

Bodnár¹,

Kjøniksen²,

Molnar³

et al. 2007

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanoparticles formed by complexation of poly-gamma-glutamic acid with lead ions

Bodnár¹,

Kjøniksen²,

Molnar³

et al. 2007

Journal of Hazardous Materials

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“…In solution, the polymer-metal complexes form micro heterogeneous regions occupied by polymer backbone where physicochemical properties differ from those of the bulk solution [1] . Many polysaccharides, such as cellulosic, carrageenan, lignin, chitin and alginate derivatives are known to bind heavy metal ions strongly [2][3][4][5][6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Novel Thermoplastic Films for Removal of Heavy Metal Ions

Haroun

Taleb

El‐Ghaffar

2010

Polymer-Plastics Technology and Engineering

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The main objective of this study is to establish the applicability of novel thermoplastic films based on extracted gelatins from bovine (G b ) and bird (G c ) bones in addition to hide powder (HP), which blended with modified polyethylene (MPE) for the removal of heavy metal ions such as copper (II), chromium (VI), nickel (II) and zinc (II) from aqueous media. The chemical reaction between 2-oxoglutaric acid with furfural in presence of methyl amine, via Mannich reaction mechanism, resulted in chemical compound I. The chemical structure of product I was confirmed by different spectroscopic tools such as: nuclear magnetic resonance ( 13 C-and 1 H-NMR) and Fourier transform infrared spectroscopy (FT-IR). The synthesized chemical product I was used as compatibilizing agent for blending G b , G c and Hp with MPE to obtain thermoplastic films using a polymer melting technique. The efficiency of the prepared films for absorption of different heavy metal ions from aqueous solution was investigated. The results indicated that the compatibilized films (MPE/I/HP) illustrated a maximum removal of zinc metal ions ($100%) under conditions of initial metal concentration about 240 mg/l. While, at initial metal concentration of about 150 mg/l, they exhibited excellent efficiency for removal of mixed metal ions of about 97-100% relative to the uncompatibilized ones (MPE/HP) 0%. INTRODUCTIONPolymer-metal complexes are composed of polymeric ligand and metal ions. In solution, the polymer-metal complexes form micro heterogeneous regions occupied by polymer backbone where physicochemical properties differ from those of the bulk solution [1] . Many polysaccharides, such as cellulosic, carrageenan, lignin, chitin and alginate derivatives are known to bind heavy metal ions strongly [2][3][4][5][6][7][8] . The negative effects of heavy metals on the environment have necessitated the need to look for suitable technologies for their removal from different industrial effluents, before discharging, such as mining, battery,

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“…The width and intensity of spectral bands, as well as the position of peaks are all sensitive to environmental changes and the conformations of the macromolecule at a molecular level. In interpenetrating polymer networks, there are intermolecular interactions [16]. Raman spectroscopy has also been exploited to characterize the diffusion properties of solutes in hydrogels.…”

Section: Introductionmentioning

confidence: 99%