2017
DOI: 10.1021/acs.jpcb.7b08796
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Competitive Removal of Cu(II) and Cd(II) from Water Using a Biocomposite Hydrogel

Abstract: With an objective to improve the adsorption properties of a synthetic hydrogel, potato starch (PS) was incorporated in the ter-copolymer (TP) of acrylic acid (AA), acrylamide (AM), and bicarboxylic itaconic acid (IA) during polymerization of the monomers. The resulting TP-PS composite hydrogels were characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), nuclear magnetic resonance (NMR), scanning electron microscopy with energy dispersive X-ra… Show more

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Cited by 29 publications
(13 citation statements)
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“…This phenomenon is resulted from the increased amount of unsaturated adsorption sites [32]. It is worth noting that there was only subtle increase for MO removal comparing to that of RhB, suggesting different removal behaviors.…”
Section: Effect Of Adsorbent Dosagementioning
confidence: 92%
“…This phenomenon is resulted from the increased amount of unsaturated adsorption sites [32]. It is worth noting that there was only subtle increase for MO removal comparing to that of RhB, suggesting different removal behaviors.…”
Section: Effect Of Adsorbent Dosagementioning
confidence: 92%
“…In this context, the graft copolymers of GG, such as GG- g -poly(ethylacrylate), 26 GG- g -poly(acrylic acid) (AA), 27 GG- g -poly(acrylamide) (AM), 28 and GG-multiwalled carbon nanotubes nanocomposite hydrogels, 29 have effectively been used for adsorptive removals of various aqueous waste contaminants. Again, graft copolymers, such as potato starch- g -poly(AM- co -AA- co -bicarboxylic itaconic acid), 30 xanthan gum- g -poly(hydroxyethylmethacrylate- co -AA), 31 quaternary ammonium chitosan- g -poly(acrylic acid- co -acrylamide), 32 and GG- g -poly(AM- co -aniline), 33 have been tested for removal of dyes and M(II/III/VI) such as Cu(II), Ni(II), Pb(II), Zn(II), Fe(II), Cr(VI), and Hg(II). In this context, incorporation of an acrylamido functionality in the polymer matrix was carried out using several acrylamide derivatives, such as 2-acrylamido glycolic acid, 34 2-acrylamido-2-methylpropane sulfonic acid, 35 2-acrylamido-2-methyl-1-propanesulfonic acid, 36 and 3-acrylamido phenylboronic acid, 37 as external monomers.…”
Section: Introductionmentioning
confidence: 99%
“…At present, graft copolymerization of vinyl monomer is the main method of starch modification. Grafted starch copolymers, such as acrylamide, acrylonitrile, acrylic ester and acrylic acid, have been reported as adsorbents for heavy metal wastewater [14][15][16][17]. However, the effective functional group content is low, and the adsorption effect is not very satisfactory.…”
Section: Introductionmentioning
confidence: 99%