Application of Fe3O4/graphene oxide composite for the separation of Cs(I) and Sr(II) from aqueous solution

Wang, Xu; Yu, Jitao

doi:10.1007/s10967-014-3431-4

Cited by 39 publications

(7 citation statements)

References 27 publications

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“…The diffraction peaks at 30.5° (220), 36.0° (311), 43.5° (400), 53.9° (422), 57.5° (511), and 63.2° (440) observed were consistent with the standard XRD pattern of cubic Fe 3 O 4 (JCPDS, no. 19-0629) . The peak at 25.2° corresponds to the (002) reflection of graphitic carbon .…”

Section: Resultsmentioning

confidence: 99%

“…The results demonstrated that the Cs + and Sr 2+ adsorption was not significantly affected by the presence of coexisting cations. The metal ions (Cs + and Sr 2+ ) bind preferentially and more strongly to the COO – groups of the rGO than Na + and K + . , This is due to the relative binding affinity of COO – groups to the metal ions in the order of Sr 2+ ≫ Cs + ≫ Na + . In addition, in the acidic medium, the H + ions compete with Na + and K + for adsorption site, and therefore, the adsorption of Na + and K + was less as compared to the Cs + and Sr 2+ .…”

Section: Resultsmentioning

confidence: 99%

“…19-0629). 32 The peak at 25.2°corresponds to the (002) reflection of graphitic carbon. 31 The XRD patterns of as-synthesized rGO and Fe 3 O 4 are shown in Figure 2a for comparison.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Magnetite Nanoparticle Decorated Reduced Graphene Oxide Composite as an Efficient and Recoverable Adsorbent for the Removal of Cesium and Strontium Ions

Minitha

Suresh

Maity

et al. 2018

Ind. Eng. Chem. Res.

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Magnetite nanoparticles (Fe 3 O 4 ) decorated reduced graphene oxide (rGO) composite was synthesized by the solvothermal method and utilized as a potential adsorbent for the removal of cesium (Cs + ) and strontium (Sr 2+ ) ions from aqueous solution. The effects of adsorbate concentration and reaction time on the removal efficiencies of Cs + and Sr 2+ were investigated. The adsorption capacity increases as the initial concentration of Cs + /Sr 2+ increased from 1 to 170 mg/L, which might be due to the more available adsorption sites, and the adsorbent reached equilibrium at 360 min. The adsorption isotherm was fitted to the Freundlich model with maximum adsorption capacities of Cs + and Sr 2+ being 128.2 and 384.6 mg g −1 , respectively. The kinetic study showed that the adsorption behavior followed pseudo-second-order kinetics. The rGO/Fe 3 O 4 nanocomposite showed excellent selectivity toward Cs + and Sr 2+ even in the presence of competitive cations (Na + , K + , and Mg 2+ ) having a higher concentration.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Magnetite Nanoparticle Decorated Reduced Graphene Oxide Composite as an Efficient and Recoverable Adsorbent for the Removal of Cesium and Strontium Ions

Minitha

Suresh

Maity

et al. 2018

Ind. Eng. Chem. Res.

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“…尽管磁性有所降低, 但是复合材料仍然能够在30 min内快速固液分离 (图2(F))且 137 Cs最大吸附量为43.09 mg/g. Wang等 [59] 利用Fe3O4和氧化石墨烯(GO)材料制备得到的Fe3O4@GO 对水溶液中的Cs(I)和Sr(II)展现了良好的吸附性能, 在 pH为5.0、温度为293 K时的最大吸附量分别为15.8和…”

Section: 四氧化三铁(Fe3o4)unclassified

Removal of radionuclides by metal oxide materials and mechanism research

et al. 2017

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With the development of civil nuclear industry, "radioactive contamination" has aroused worldwide public attention increasingly. The study on the interaction of radionuclides at solid-liquid interfaces can lead to a more profound comprehension of its diffusion, migration and transformation in the natural environment, which would make the disposal and control of radioactive wastes more effectively. The metal oxide materials have shown great potential applications in the field of radionuclides' removal, which are mainly attributed to their multiple advantages, such as the sufficiency, the low cost, the environmental friendliness and the large sorption capacity. Herein, we reviewed the application of commonly used metal oxide materials (such as iron oxides, layered double oxides, aluminum oxides and titanium dioxides) in the sorption of radionuclides from large volumes of aqueous solutions in the last five years. The sorption properties and the main interaction mechanism were investigated and discussed through batch experiments, surface complexation models, spectroscopic techniques and theoretical calculations. Moreover, the application of the metal oxide materials in environmental radioactive pollution cleanup was also discussed. Therefore, we hope that this work would be helpful to further investigation and application of metal oxide materials in environmental radionuclide pollution management.

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“…Several methods of removing 90 Sr and 137 Cs from aqueous solutions have been studied, including bioremediation, liquid-liquid solvent extraction, chitosan adsorption, and modified graphene oxide adsorption. 1,[3][4][5] Of these, adsorption is the most effective and economical method of removing radioactive substances from aqueous solutions, and several adsorbents have already been studied. 6) In addition, adsorbents produced from waste biomass have received special attention, because they are cheap, readily available, simple to modify, and environmentally friendly.…”

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confidence: 99%

Biomass Potential of Virgin and Calcined Tapioca (Cassava Starch) for the Removal of Sr(II) and Cs(I) from Aqueous Solutions

Ogata

Nagai

Ueta

et al. 2018

CHEMICAL & PHARMACEUTICAL BULLETIN

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In this study, we prepared novel adsorbents containing virgin and calcined tapioca products for removing strontium (Sr(II)) and cesium (Cs(I)) from aqueous solutions. The characteristics of tapioca, along with its capacity to adsorb Sr(II) and Cs(I), were evaluated. Multiple tapioca products were prepared and tested. The adsorbent prepared by boiling the tapioca followed by calcination at 300°C (BTP300) was the most effective. In addition, adsorption was affected by the adsorbent's surface properties. The Sr(II) and Cs(I) adsorbed onto BTP300 could be recovered through desorption by hydrochloric acid at different concentrations, which indicates that BTP300 can be used several times for adsorption/desorption. The results of this study suggest that BTP300, which was produced from tapioca biomass, can remove Sr(II) and Cs(I) from aqueous solutions.

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Application of Fe3O4/graphene oxide composite for the separation of Cs(I) and Sr(II) from aqueous solution

Cited by 39 publications

References 27 publications

Magnetite Nanoparticle Decorated Reduced Graphene Oxide Composite as an Efficient and Recoverable Adsorbent for the Removal of Cesium and Strontium Ions

Magnetite Nanoparticle Decorated Reduced Graphene Oxide Composite as an Efficient and Recoverable Adsorbent for the Removal of Cesium and Strontium Ions

Removal of radionuclides by metal oxide materials and mechanism research

Biomass Potential of Virgin and Calcined Tapioca (Cassava Starch) for the Removal of Sr(II) and Cs(I) from Aqueous Solutions

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