NH2-rich polymer/graphene oxide use as a novel adsorbent for removal of Cu(II) from aqueous solution

Xing, Hai Tao; Chen, Jian Hua; Sun, Xiao; Huang, Yi; Su, Zhen; Hu, Shi Rong; Weng, Wen; Li, Shun Xing; Guo, Hong; Wu, Wen Bing; He, Ya Shan; Li, Fei Ming; Huang, Yang

doi:10.1016/j.cej.2014.10.111

Cited by 129 publications

(33 citation statements)

References 64 publications

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“…and Ni 2? in the contact solutions [13,[30][31][32]. Thus, we believe that pH depended species of elements could not affect the sorption kinetics.…”

Section: Resultsmentioning

confidence: 99%

Sorption of radionuclides and metals to graphene oxide and magnetic graphene oxide

Lujaniené

Šemčuk

Kulakauskaitė

et al. 2015

J Radioanal Nucl Chem

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Graphene oxide (GO) and two magnetic graphene oxide (MGO) composites with a different amount of magnetite were synthesized, characterized and used in sorption experiments. The effect of pH on sorption of Am(III) and Pu(IV) isotopes as well as Co(II), Ni(II), Cu(II) and Pb(II) to GO and MGO was studied in equilibrium and kinetic experiments. The adsorption capacities varied from 30 to 574 mg g -1 while rate constants ranged from 0.29 to 0.46 min -1 and increased in the following order Co, Cu, Pb and Ni. Large variations in the uptake of studied elements by adsorbents depending on initial and final pH of solutions were observed.

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“…and Ni 2? in the contact solutions [13,[30][31][32]. Thus, we believe that pH depended species of elements could not affect the sorption kinetics.…”

Section: Resultsmentioning

confidence: 99%

Sorption of radionuclides and metals to graphene oxide and magnetic graphene oxide

Lujaniené

Šemčuk

Kulakauskaitė

et al. 2015

J Radioanal Nucl Chem

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“…The isotherm data were tested by four models (details provided in the Supplementary material). [18,19,31,33]. Fig.…”

Section: Adsorption Isothermsmentioning

confidence: 92%

“…Graphene oxide (GO) is an engineered nanomaterial that consists of various functional groups including hydroxyl, carboxyl and epoxy groups. These groups can not only enhance the dispensability of GO, but also serve as adsorption sites for various contaminants in aqueous solution [19][20][21]. In comparison to other carbonaceous nanomaterials, GO may be more environmental friendly and have better biocompatibility [22].…”

Section: Introductionmentioning

confidence: 99%

EDTA functionalized magnetic graphene oxide for removal of Pb(II), Hg(II) and Cu(II) in water treatment: Adsorption mechanism and separation property

Cui

Wang

Gao

et al. 2015

Chemical Engineering Journal

643

152

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“…b, in the spectra of HMGO‐PAMAM‐G1.0 (Fig. c), a new band is located at 1,730 cm −1 for CO stretching vibration of the amide , meanwhile, the N‐H and C‐N stretching vibration bonds have been strengthen.…”

Section: Resultsmentioning

confidence: 91%

Magnetic graphene oxide grafted with different hydrophobic chain lengths low‐generation polyamidoamine dendrimers for adsorption of Pb(II) and Hg(II) in aqueous solution

Shao

Jin

et al. 2018

Polymer Composites

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In this study, using hexamethylenediamine (HMD)‐modified magnetic graphene oxide (HMGO‐NH2) as carrier, HMD and methyl acrylate as function monomers, MGO grafted with longer hydrophobic chain length low‐generation HMD type polyamidoamine dendrimers (HMGO‐PAMAM‐G1.0) was prepared by Michael addition and amidation condensation reaction. The obtained HMGO‐PAMAM‐G1.0 sample was characterized by transmission electron microscope, X‐ray diffraction, Fourier transform infrared spectroscopy, nitrogen adsorption/desorption isotherms, thermal properties analysis, vibrating sample magnetometer, and X‐ray photoelectron spectroscopy analysis. The adsorption properties for Pb(II) and Hg(II) heavy metal ions of HMGO‐PAMAM‐G1.0 and the magnetic graphene oxide grafted with shorter hydrophobic chain length low‐generation ethylenediamine type polyamidoamine dendrimers (MGO‐PAMAM‐G1.0) reported in our previous work were explored. The results showed that the HMGO‐PAMAM‐G1.0 with longer hydrophobic chain length had higher adsorption capacity for Pb(II) and Hg(II) than MGO‐PAMAM‐G1.0 at the higher concentrations. The adsorption process of HMGO‐PAMAM‐G1.0 and MGO‐PAMAM‐G1.0 for Pb(II) and Hg(II) was well in agreement with pseudo‐second‐order kinetic model and the Langmuir isotherm model. The Pb(II) was only adsorbed on the sample, while the Hg(II) was partially reduced to Hg(I) in the adsorption process. POLYM. COMPOS., 40:E1685–E1696, 2019. © 2018 Society of Plastics Engineers

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NH2-rich polymer/graphene oxide use as a novel adsorbent for removal of Cu(II) from aqueous solution

Cited by 129 publications

References 64 publications

Sorption of radionuclides and metals to graphene oxide and magnetic graphene oxide

Sorption of radionuclides and metals to graphene oxide and magnetic graphene oxide

EDTA functionalized magnetic graphene oxide for removal of Pb(II), Hg(II) and Cu(II) in water treatment: Adsorption mechanism and separation property

Magnetic graphene oxide grafted with different hydrophobic chain lengths low‐generation polyamidoamine dendrimers for adsorption of Pb(II) and Hg(II) in aqueous solution

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