Synthesis of diethylaminoethyl dextran hydrogel and its heavy metal ion adsorption characteristics

Demirbilek, Celile; Dinç, Cemile Özdemir

doi:10.1016/j.carbpol.2012.06.068

Cited by 55 publications

(17 citation statements)

References 56 publications

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“…The same order of adsorption affinities (Zn 2+ >Pb 2+ >Cd 2+ ) was shown by another polysaccharide hydrogel, an amino‐functionalized dextran hydrogel, at neutral pH. The adsorption of Zn 2+ was in this case particularly high (500 mg/g) while the Cd 2+ adsorption was very low (<3 mg/g) . A higher adsorption of Cu 2+ compared with Pb 2+ was in agreement with the behavior of a hemicellulose hydrogel based on arabinoxylan and cross‐linked with acrylic acid .…”

Section: Resultssupporting

confidence: 80%

“…Chitosan contains numerous amine pendant groups that may act as chelating groups. A chitosan‐derived hydrogel was shown to be effective for Cu 2+ adsorption, whereas an amino‐functionalized dextran hydrogel showed a particular affinity for Zn 2+ . Furthermore, a salep sulfate‐graft‐polyacrylic acid hydrogel was demonstrated to remove Co 2+ , Zn 2+ , and Cu 2+ from an aqueous solution …”

Section: Introductionmentioning

confidence: 99%

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Design of renewable poly(amidoamine)/hemicellulose hydrogels for heavy metal adsorption

Ferrari

Ranucci

Edlund

et al. 2014

J of Applied Polymer Sci

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Renewable poly(amidoamine)/hemicellulose hydrogels were prepared from O-acetylated galactoglucomannan (AcGGM)rich biomass and shown to display a significantly high adsorption capacity for Cu 21 , Cd 21 , Pb 21, Zn 21 , Ni 21 , Co 21 , and CrO 2-4 . Two different acrylamido end-capped poly(amidoamine) oligomers (PAA) were prepared and covalently immobilized onto an in situ formed polysaccharide network via water-based free radical graft copolymerization and cross-linking. The synthetic approach was shown to be viable when using a highly purified AcGGM or a crude spruce hydrolysate, an AcGGM and lignin containing biomass fraction as a reactant. Homogeneous reaction mixtures were obtained in both cases with polysaccharide contents up to 20% by weight. Oscillatory shear measurements indicated a predominantly solid-like behavior of the hydrogels with an increase in shear storage modulus with increasing cross-link density. The mechanical integrity of the PAA/hemicellulose hydrogels showed higher water swelling capacity and less fragility than the parent PAA hydrogels and they retained the heavy metal ion absorption ability of the PAA component, even in the presence of the least purified hemicellulose fraction.

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Section: Resultssupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Design of renewable poly(amidoamine)/hemicellulose hydrogels for heavy metal adsorption

Ferrari

Ranucci

Edlund

et al. 2014

J of Applied Polymer Sci

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“…Among various natural polysaccharides, dextran is an important starting material for new functional materials with promising properties. 19 Due to its common solubility, biocompatibility, and biodegradability, dextran is already successfully applied in the medical and biomedical eld, [20][21][22] however, the applications in adsorbents were seldom reported. Here, we synthesized a hydrogel adsorbent based on dextran.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a poly(acrylic acid) based hydrogel with fast adsorption rate and high adsorption capacity for the removal of cationic dyes

Yuan

Wang

et al. 2019

RSC Adv.

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“…Hydrogels containing ionic components or ionic side groups have found a large variety of uses, mostly related to environmental applications . Polyampholyte hydrogels (PAHs), which are a class of this group, have attracted considerable interest of scientists and engineers studying in these areas .…”

Section: Introductionmentioning

confidence: 99%

Development of polyampholyte hydrogels based on laponite for electrically stimulated drug release

Ekici

Tetik

2014

Polym. Int.

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Polyampholyte hydrogels (PAHs) composed of laponite, polyacrylamide and poly(3-acrylamidopropyl)trimethylammonium chloride crosslinked with ethylene glycol dimethacrylate were synthesized and characterized for their sensitivity to external conditions and their ability to control the release of the active drug agent paracetamol. Three PAHs were synthesized by taking the weight ratio of laponite to total monomer as 7, 15 and 29%. PAHs were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis and swelling measurements carried out in various media. Equilibrium and pulsatile swelling studies were performed on all hydrogels to determine to what extent the hydrogels would respond to changes in environmental pH, ionic strength and electric field, and how fast that response would be. Paracetamol was loaded into the hydrogels, and was released into buffered solutions as a function of pulsatile changes in pH and electric field.

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Synthesis of diethylaminoethyl dextran hydrogel and its heavy metal ion adsorption characteristics

Cited by 55 publications

References 56 publications

Design of renewable poly(amidoamine)/hemicellulose hydrogels for heavy metal adsorption

Design of renewable poly(amidoamine)/hemicellulose hydrogels for heavy metal adsorption

Preparation of a poly(acrylic acid) based hydrogel with fast adsorption rate and high adsorption capacity for the removal of cationic dyes

Development of polyampholyte hydrogels based on laponite for electrically stimulated drug release

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