A porous multifunctional and magnetic layered graphene oxide/3D mesoporous MOF nanocomposite for rapid adsorption of uranium(VI) from aqueous solutions

Amini, Asma; Khajeh, Mostafa; Oveisi, Ali Reza; Daliran, Saba; Ghaffari‐Moghaddam, Mansour; Delarami, Hojat Samareh

doi:10.1016/j.jiec.2020.10.008

Cited by 93 publications

(23 citation statements)

References 75 publications

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“…(Zhang et al 2020;Chen et al 2020). Many studies have been done by researchers and found that coating the surface with other materials (such as MOF) is considered to be a good way to avoid its defects, and GO-MOF composite material is hence considered to be a good composite adsorption material (Zhou et al 2014; Amini et al 2020;Eltaweil et al 2020; Bu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Liu

Bakhtari

et al. 2021

Environ Sci Pollut Res

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In this study, , Cu), and Graphene Oxide (GO) /MIL-101(Fe,Cu) were synthesized to compose a novel sorbent. The adsorption properties of these three MOFs-based composites were compared toward the removal of phosphate. Furthermore, the influencing factors including reaction time, pH, temperature and initial concentration on the adsorption capacity of phosphate on these materials as well as the reusability of the material were discussed. The structure of fabricated materials and the removal mechanism of phosphate on the composite material were analyzed by Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen adsorption-desorption analysis and zeta potential. The results show that the maximum adsorption capacity of phosphate by the composite GO/MIL-101(Fe,Cu)-2% was 204.60 mg•g -1 , which is higher than that of MIL-101(Fe,Cu) and MIL-101(Fe). likewise the specific surface area of GO/MIL-101(Fe,Cu)-2% is 778.11 m 2 /g is higher than that of Cu) and ,which are 747.75 and 510.66m 2 /g respectively. The adsorption mechanism of phosphate is electrostatic attraction, form coordination bonds and hydrogen bonds. The fabricated material is a promising adsorbent for the removal of phosphate with good reusability.

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Section: Introductionmentioning

confidence: 99%

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Liu

Bakhtari

et al. 2021

Environ Sci Pollut Res

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“…Wan et al [ 91 ] reported the results of a humic acid/L-cysteine-codecorated magnetite that has complex properties, resulting from functional groups, ion exchange, and negatively charged surfaces. In another study, Amini et al [ 87 ] reported a novel composite, GO/Fe 3 O 4 /OPO 3 H 2 /PCN-222, that can extract U(VI) in 3 min, with a capacity of 416.7 mg/g. It took three steps to prepare the adsorbents; therefore, large-scale production was unfeasible and not cost-effective.…”

Section: Conventional Synthesis Methods Of Magnetic Adsorbentsmentioning

confidence: 99%

Magnetic Adsorbents for Wastewater Treatment: Advancements in Their Synthesis Methods

et al. 2022

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The remediation of water streams, polluted by various substances, is important for realizing a sustainable future. Magnetic adsorbents are promising materials for wastewater treatment. Although numerous techniques have been developed for the preparation of magnetic adsorbents, with effective adsorption performance, reviews that focus on the synthesis methods of magnetic adsorbents for wastewater treatment and their material structures have not been reported. In this review, advancements in the synthesis methods of magnetic adsorbents for the removal of substances from water streams has been comprehensively summarized and discussed. Generally, the synthesis methods are categorized into five groups, as follows: direct use of magnetic particles as adsorbents, attachment of pre-prepared adsorbents and pre-prepared magnetic particles, synthesis of magnetic particles on pre-prepared adsorbents, synthesis of adsorbents on preprepared magnetic particles, and co-synthesis of adsorbents and magnetic particles. The main improvements in the advanced methods involved making the conventional synthesis a less energy intensive, more efficient, and simpler process, while maintaining or increasing the adsorption performance. The key challenges, such as the enhancement of the adsorption performance of materials and the design of sophisticated material structures, are discussed as well.

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“…The composites of MOFs with other functional materials, such as graphene oxide (GO), [35,69] Fe 3 O 4 , [70] graphitic carbon nitride (g-C 3 N 4 ), [36] nanoscale zero-valent iron (nZVI) [37,71] and carbon sponge (CS), [72] are also promising materials with enhanced uranium uptake performance. The GO-COOH/UiO-66 composite was fabricated by coordination between the Zr(IV) of UiO-66 and the À COOH of GO.…”

Section: Uio-66-based Composite Adsorbents With Extra Active Sitesmentioning

confidence: 99%

Metal‐Organic‐Framework Based Functional Materials for Uranium Recovery: Performance Optimization and Structure/Functionality‐Activity Relationships

et al. 2021

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Uranium recovery has profound significance in both uranium resource acquisition and pollution treatment. In recent years, metal‐organic frameworks (MOFs) have attracted much attention as potential uranium adsorbents owing to their tunable structural topology and designable functionalities. This review explores the research progress in representative classic MOFs (MIL‐101, UiO‐66, ZIF‐8/ZIF‐67) and other advanced MOF‐based materials for efficient uranium extraction in aqueous or seawater environments. The uranium uptake mechanism of the MOF‐based materials is refined, and the structure/functionality‐property relationship is further systematically elucidated. By summarizing the typical functionalization and structure design methods, the performance improvement strategies for MOF‐based adsorbents are emphasized. Finally, the present challenges and potential opportunities are proposed for the breakthrough of high‐performance MOF‐based materials in uranium extraction.

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A porous multifunctional and magnetic layered graphene oxide/3D mesoporous MOF nanocomposite for rapid adsorption of uranium(VI) from aqueous solutions

Cited by 93 publications

References 75 publications

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Magnetic Adsorbents for Wastewater Treatment: Advancements in Their Synthesis Methods

Metal‐Organic‐Framework Based Functional Materials for Uranium Recovery: Performance Optimization and Structure/Functionality‐Activity Relationships

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