Zeolitic imidazolate framework-based nanomaterials for the capture of heavy metal ions and radionuclides: A review

Liu, Yue; Pang, Hongwei; Wang, Xiangxue; Yu, Shujun; Chen, Zhongshan; Zhang, Pan; Chen, Lan; Song, Gang; Alharbi, Njud S.; Rabah, Samar

doi:10.1016/j.cej.2020.127139

Cited by 186 publications

(46 citation statements)

References 191 publications

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“…Polymers 2022, 14, x FOR PEER REVIEW 6 of 15 structure, which is consistent with the morphology of ZIF−8 reported in the references [1,2]. This phenomenon implies that ZIF−8 might be synthesized on the surface of the PAN nanofiber membrane via in situ growth.…”

Section: Characterization Of Adsorbentssupporting

confidence: 87%

“…After the solvothermal reaction, as shown in Figure 2b, a layer of ZIF−8 polyhedral particles with uniform size was attached onto the surface of the PAN electrospun nanofiber membrane. The enlarged image in the upper right corner on Figure 2b clearly shows that the particles had a rhombic dodecahedron structure, which is consistent with the morphology of ZIF−8 reported in the references [1,2]. This phenomenon implies that ZIF−8 might be synthesized on the surface of the PAN nanofiber membrane via in situ growth.…”

Section: Characterization Of Adsorbentssupporting

confidence: 87%

“…With the development of the global economy and continuous progress of light industry, the discharge of industrial waste water has rapidly increased. The pollutants in waste water containing heavy metal ions have entered and accumulated in drinking water resources and the soil [1,2], which not only affects the output of agricultural products, but also ultimately endangers human health through the food chain [3][4][5]. The existing methods used to remove heavy metal pollutions mainly include filtration [6], adsorption [7,8], membrane separation [9], ion exchange [10] and photocatalytic degradation [11].…”

Section: Introductionmentioning

confidence: 99%

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Preparation of the Carbonized Zif−8@PAN Nanofiber Membrane for Cadmium Ion Adsorption

et al. 2022

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The zeolitic imidazolate framework (ZIF−8)@polyacrylonitrile (PAN) nanofiber membrane was prepared and carbonized for heavy metal cadmium ion (Cd2+) adsorption in aqueous medium. Zinc oxide (ZnO) was first sputtered onto the surface of the PAN electrospun nanofiber membrane to provide a metal ion source. Then, the ZIF−8@PAN nanofiber membrane was prepared via in situ solvothermal reaction and carbonized in a tube furnace at 900 °C under a N2 atmosphere to enhance adsorption performance. The synthesized ZIF−8 particles with polyhedral structure were uniformly immobilized on the surface of the PAN electrospun nanofiber membrane. After being heated at 900 °C, the polygonal ZIF−8 shrank, and the carbonized ZIF−8@PAN nanofiber membrane was obtained. Compared with the nanofiber membrane without being carbonized, the adsorption capacity of the carbonized ZIF−8@PAN nanofiber membrane reached 102 mg L−1, and its Cd2+ adsorption efficiency could be more than 90% under the adsorption temperature of 35 °C and solution of pH = 7.5 conditions. According to the adsorption thermodynamics analysis, the Cd2+ adsorption process of the carbonized ZIF−8@PAN nanofiber membrane was spontaneous. The whole Cd2+ adsorption process was more suitably described by the pseudo second-order adsorption kinetics model, indicating that there exists a chemical adsorption mechanism besides physical adsorption.

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Section: Characterization Of Adsorbentssupporting

confidence: 87%

Section: Characterization Of Adsorbentssupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

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Preparation of the Carbonized Zif−8@PAN Nanofiber Membrane for Cadmium Ion Adsorption

et al. 2022

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“…Nonsolvent-based strategies including mechanochemical synthesis and minimization (dry-gel) methods, have been reported. [33,48] As a representative work, Llopiz et al reported the synthesis of Zn-ZIF by mechanical grinding of ZnO with a large excess of imidazole. [49] Besides the preparation of ZIF powders, other ZIF-based films/ membranes have also been prepared for specific use.…”

Section: Synthesis Characteristics and Modulation Of Zifs And Their Derivativesmentioning

confidence: 99%

Recent Progress on Zeolitic Imidazolate Frameworks and Their Derivatives in Alkali Metal–Chalcogen Batteries

Chen

et al. 2021

Advanced Energy Materials

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The commercialization of high‐energy‐density alkali metal (Li, Na, and K)–chalcogen (S, Se, and Te) batteries (AMCBs) has been primarily hindered by the volume expansion of chalcogen cathodes during repeated charging/discharging cycles, the shuttling effect of intermediates in the electrolytes, and unstable alkali metal anodes. Owing to their unique structural and physicochemical characteristics, including high specific surface areas, self‐doped N atoms, open pore structure, versatile compositions, and favorable chemical stability, zeolitic imidazolate frameworks (ZIFs) and their derivatives have been widely used in different battery components, such as cathodes, anodes, separators, and interlayers, to resolve these issues simultaneously. This review discusses recent advances in ZIFs and their derivatives for cathode construction, anode protection, and interlayer/separator design in AMCBs. The processing methods, structure and morphology engineering, composition tuning, and electrochemical performance of various ZIFs and their derivatives are systematically examined. More importantly, the remaining challenges and future research directions are summarized and discussed. This review is expected to offer new approaches for the rational design of ZIFs and their derivatives for emerging energy storage devices.

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“…Examples of useful nanoadsorbents are zerovalent iron (n-ZVI), iron oxide (Fe 3 O 4 ), Fe 3 O 4 @SiO 2 -SH, iron sulfide (FeS), amorphous silica (SiO 2 ) and aluminium-silicate-mixed oxides nanomaterials. Interestingly, blends of inorganic nanomaterials with large surface area metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) have shown high adsorption capacity for heavy metals and radionuclides [80,81].…”

Section: Introductionmentioning

confidence: 99%

Heavy metal pollution and the role of inorganic nanomaterials in environmental remediation

et al. 2021

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Contamination of water and soil with toxic heavy metals is a major threat to human health. Although extensive work has been performed on reporting heavy metal pollutions globally, there are limited review articles on addressing this pernicious phenomenon. This paper reviews inorganic nanoparticles and provides a framework for their qualities required as good nanoadsorbents for efficient removal of heavy metals from water. Different inorganic nanoparticles including metals, metal oxides and metal sulfides nanoparticles have been applied as nanoadsorbents to successfully treat water with high contaminations of heavy metals at concentrations greater than 100 mg l −1 , achieving high adsorption capacities up to 3449 mg g −1 . It has been identified that the synthesis method, selectivity, stability, regeneration and reusability, and adsorbent separation from solution are critical parameters in deciding on the quality of inorganic nanoadsorbents. Surface functionalized nanoadsorbents were found to possess high selectivity and capacity for heavy metals removal from water even at a very low adsorbent dosage of less than 2 g l −1 , which makes them better than conventional adsorbents in environmental remediation.

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Zeolitic imidazolate framework-based nanomaterials for the capture of heavy metal ions and radionuclides: A review

Cited by 186 publications

References 191 publications

Preparation of the Carbonized Zif−8@PAN Nanofiber Membrane for Cadmium Ion Adsorption

Preparation of the Carbonized Zif−8@PAN Nanofiber Membrane for Cadmium Ion Adsorption

Recent Progress on Zeolitic Imidazolate Frameworks and Their Derivatives in Alkali Metal–Chalcogen Batteries

Heavy metal pollution and the role of inorganic nanomaterials in environmental remediation

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