2017
DOI: 10.1016/j.arabjc.2016.06.009
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Furfuryl alcohol functionalized graphene for sorption of radionuclides

Abstract: In this study, graphene was functionalized with furfuryl alcohol (FA) through the DielsAlder reaction. The as-prepared FA functionalized graphene (FAG) was characterized by XRD, Raman, TEM, AFM, FT-IR and TG. The sorption performance of the obtained FAG toward radionuclides was evaluated. The maximum sorption capacities from the Langmuir model were calculated to be 1.178, 1.947, 1.431 and 1.608 mmol g À1 for U(VI), Eu(III), Sr(II), and Co(II), respectively, at T = 303 K and pH = 3.0, indicating the hierarchica… Show more

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Cited by 19 publications
(10 citation statements)
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“…Studies such as those carried out by Wang et al [ 34 ] show that the nanostructured titanium pyrophosphates and the isomorphous substitution of Zr 4+ by Ti 4+ result in an enhancement of sorption capacity of actinides. Other materials, such as the novel SiO 2 -ZrO 2 -calcium alginate aerogels [ 66 ] or graphene [ 67 ], have a higher actinide retention capacity than the solid studied, but their structural stability has not been demonstrated when subjected to intense fields of thermal and ionizing radiation.…”
Section: Resultsmentioning
confidence: 99%
“…Studies such as those carried out by Wang et al [ 34 ] show that the nanostructured titanium pyrophosphates and the isomorphous substitution of Zr 4+ by Ti 4+ result in an enhancement of sorption capacity of actinides. Other materials, such as the novel SiO 2 -ZrO 2 -calcium alginate aerogels [ 66 ] or graphene [ 67 ], have a higher actinide retention capacity than the solid studied, but their structural stability has not been demonstrated when subjected to intense fields of thermal and ionizing radiation.…”
Section: Resultsmentioning
confidence: 99%
“…The peaks at 1345 cm −1 (D band) and 1588 cm −1 (G band) can be assigned to disordered structures (defects and disordered sp 3 carbon atoms and/or other impurities) and the graphite structure (sp 2 -hybridized carbon atoms in graphene sheets), respectively [29]. The peak intensity ratio of D and G bands (I D /I G ) reflects the relative defect degree of graphitic materials [27]. In comparison to graphene oxide (I D /I G~0 .96), the I D /I G ratio of TA/GO (~0.89) was reduced by about 0.07, indicating that tannic acid/graphene oxide (TA/GO) composites were successfully prepared.…”
Section: Characterization Of Ta/go Compositesmentioning
confidence: 99%
“…When the pH value was less than 6.0, free UO 2 2+ ions were the main form of uranium. Because of the interaction of adsorption sites between H+/Na+ and UO 2 2+ ions, the adsorption of uranium ions by the adsorbent was inhibited at pH < 6.0 [15,27]. With the increase of pH, the concentration of H + ions in the solution gradually decreased and more surface functional groups became deprotonated [15]; thus, the adsorbent surface carried a large amount of negative charges.…”
Section: Effects Of Ph and Ionic Strengthmentioning
confidence: 99%
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“…Romanchuk et al 29 used graphene oxides (GO) to remove radionuclides from acidic wastewaters (pH < 2); this study described heavy actinide sorption kinetics on GO surfaces, suggesting that GO is more effective for the removal of transuranic elements from wastewater than many conventional sorbents. However, GO has the disadvantage of relatively low adsorption efficiency, although GO performance has been reportedly enhanced by chemical functionalization 30 32 .…”
Section: Introductionmentioning
confidence: 99%