Two-dimensional copper-based metal−organic frameworks nano-sheets composites: One-step synthesis and highly efficient U(VI) immobilization

Duan, Suqing; Wu, Lishun; Li, Jiaxing; Huang, Yongshun; Tan, Xiaoli; Wen, Tao; Hayat, Tasawar; Alsaedi, Ahmed; Wang, Xiangke

doi:10.1016/j.jhazmat.2019.03.119

Cited by 72 publications

(16 citation statements)

References 61 publications

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“…It is well known that the sorption is one of the most efficient methods to eliminate metal ions and/or radionuclides from large volumes of aqueous solutions or to solidify the metal ions on solid particles after metal ion's sorption (Dai et al 2019;Duan et al 2019;Liu et al 2019b). However, the desorption of metal ions should be considered if the environmental conditions are changed and the metal ions are released from solid particles to form free metal ions again.…”

Section: Sorption-reduction-solidification Of High-valent Metal Ions mentioning

confidence: 99%

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Jin

et al. 2020

Biochar

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296

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Biochar have received multidisciplinary attention because of their extraordinary physicochemical properties. In this review, the application of biochar and biochar-based materials for the efficient elimination of organic and inorganic pollutants are summarized. The sorption of organic chemicals and heavy metal ions/radionuclides, degradation/transformation of organic pollutants, and sorption-reduction-solidification of high-valent metal ions are described in detail. The interaction mechanism at molecular level from advanced spectroscopic techniques and theoretical calculations is discussed. Finally, the challenges in the application of biochar and biochar-supported materials in the immobilization of heavy metal ions and photocatalytic degradation of persistent organic pollutants in soils or wastewater are pointed out. This review is helpful for the graduate students to understand the recent works about biochar and biochar-supported materials in environmental pollutants management.

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Section: Sorption-reduction-solidification Of High-valent Metal Ions mentioning

confidence: 99%

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Jin

et al. 2020

Biochar

Self Cite

296

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“…Great efforts have been devoted to exploring high-efficient adsorbent materials such as bimetallic oxide (Wen et al, 2018) and porous carbon (Jafari et al, 2020). In recent years, framework-based materials with abundant porous structures and functional surface groups have gained great concerns and considered to be burgeoning adsorbents (Li et al, 2018;Duan et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bimetallic Coordination in Two-Dimensional Metal–Organic Framework Nanosheets Enables Highly Efficient Removal of Heavy Metal Lead (II)

Liu

Shen

et al. 2021

Front. Chem. Eng.

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Two-dimensional (2D) metal–organic frameworks (MOFs) have emerged as intriguing 2D materials because of their specific features of 2D morphology and designable skeletons, which have elicited great interest in environment remediation. In this work, 2D MOF nanosheets are fabricated via a mixed-solvent solvothermal method, and a regulation strategy of metal inorganic clusters on MOFs is used to construct two different 2D MOFs with monometallic and bimetallic coordination, that is, Ni-MOF and Ni/Cd-MOF. Binary metal coordination renders more crystal defects and vacancies in the framework; thus, compared to monometallic Ni-MOF, bimetallic Ni/Cd-MOF exhibits fewer layers (4∼5 layers), higher specific surface area, larger pore size, and higher surface electronegativity, which leads to its excellent adsorption removal for Pb2+, with higher adsorption rate and affinity, and superior adsorption capacity (950.61 mg/g, almost twice as high as that of monometallic Ni-MOF). Besides, the adsorption mechanism further confirmed that the carboxyl groups (−COO−) from organic linker on 2D MOFs serve as the main binding sites for Pb2+ coordination, and bimetallic Ni/Cd-MOF has more active −COO− sites for Pb2+ capture. Thus, the bimetallic Ni/Cd-MOF regulated by heterogeneous metal atoms shows promising application for highly efficient adsorption of heavy metal ions.

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“…Uranium caused widespread environmental contamination because of mining and milling, and uranium-containing radioactive waste disposal. − Due to the toxicity and bioaccumulation of uranium, it is of great importance to decrease its bioavailability and remove it from wasteswater . Several methods, such as precipitation, coprecipitation, ion-exchange, and sorption , were employed to remove uranium from wastewater.…”

Section: Introductionmentioning

confidence: 99%

Amidoxime-Functionalized Hollow Carbon Spheres for Efficient Removal of Uranium from Wastewater

Liu

Zhang

et al. 2019

ACS Sustainable Chem. Eng.

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Hydrothermal carbon has received increasing attention because of its simple and mild synthesis conditions. In this paper, amidoxime-functionalized hollow carbon spheres (C-HCN-AO) were synthesized via amidation cyano-rich hydrothermal carbon (C-HCN) treatment with hydroxylamine hydrochloride. NaOH solution was used to etch SiO2 to achieve hollow structure. The maximum sorption capacity of hollow C-HCN-AO sphere toward U(VI) was 355.6 mg/g at pH 5.0 and 298 K. The sorption of U(VI) by hollow C-HCN-AO sphere was predominantly controlled by inner-sphere complexation from the study of the sorption mechanism. The regeneration study displayed good reusability of hollow C-HCN-AO sphere. This work can give a guide for the design and fabrication of hollow structures in the application of pollution treatments.

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Two-dimensional copper-based metal−organic frameworks nano-sheets composites: One-step synthesis and highly efficient U(VI) immobilization

Cited by 72 publications

References 61 publications

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Bimetallic Coordination in Two-Dimensional Metal–Organic Framework Nanosheets Enables Highly Efficient Removal of Heavy Metal Lead (II)

Amidoxime-Functionalized Hollow Carbon Spheres for Efficient Removal of Uranium from Wastewater

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