Functional metal-organic frameworks for metal removal from aqueous solutions

Viltres, Herlys; López, Yeisy C.; Gupta, Nishesh Kumar; Leyva, Carolina; Paz, Roxana; Gupta, Anjali; Sengupta, Arijit

doi:10.1080/15422119.2020.1839909

Cited by 23 publications

(21 citation statements)

References 129 publications

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“…Though nitrate is weakly coordinating anion, however, it is preferred over water molecules towards Th 4+ for maintaining charge neutrality. Such complexes are well reported in literature [19,35,36,[55][56][57]. These structure elucidation is purely speculative in nature.…”

Section: Surface Characterizationsupporting

confidence: 53%

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The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

Salunkhe

Chauhan

Sengupta

2022

Environ. Sci.: Adv.

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Section: Surface Characterizationsupporting

confidence: 53%

“…Such complexes have been widely reported in the literature. 19,35,36,[55][56][57] This structure elucidation is purely speculative in nature. Evidencing the same is beyond the scope of this manuscript.…”

Section: Papermentioning

confidence: 99%

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

Salunkhe

Chauhan

Sengupta

2022

Environ. Sci.: Adv.

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“…Metal–organic frameworks (MOFs) are inorganic–organic hybrid materials formed by the self-assembly of metal ions and bridging organic ligands. Unique physicochemical properties like large surface area and pore volume, good structural stability, and ease of fabrication have popularized their use in various environmental applications 5 , 6 . MOFs are being used as precursors for the fabrication of porous metal oxides with application-specific structural and functional characteristics 7 – 11 .…”

Section: Introductionmentioning

confidence: 99%

Metal organic framework derived NaCoxOy for room temperature hydrogen sulfide removal

Gupta

Bae

Kim

2021

Sci Rep

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Novel NaCoxOy adsorbents were fabricated by air calcination of (Na,Co)-organic frameworks at 700 °C. The NaCoxOy crystallized as hexagonal microsheets of 100–200 nm thickness with the presence of some polyhedral nanocrystals. The surface area was in the range of 1.15–1.90 m2 g−1. X-ray photoelectron spectroscopy (XPS) analysis confirmed Co2+ and Co3+ sites in MOFs, which were preserved in NaCoxOy. The synthesized adsorbents were studied for room-temperature H2S removal in both dry and moist conditions. NaCoxOy adsorbents were found ~ 80 times better than the MOF precursors. The maximum adsorption capacity of 168.2 mg g−1 was recorded for a 500 ppm H2S concentration flowing at a rate of 0.1 L min−1. The adsorption capacity decreased in the moist condition due to the competitive nature of water molecules for the H2S-binding sites. The PXRD analysis predicted Co3S4, CoSO4, Co3O4, and Co(OH)2 in the H2S-exposed sample. The XPS analysis confirmed the formation of sulfide, sulfur, and sulfate as the products of H2S oxidation at room temperature. The work reported here is the first study on the use of NaCoxOy type materials for H2S remediation.

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“…Manikandan et al [127] reported that hydrothermal reaction time in the preparation of NiÀ MOF nanostructures plays a vital role in SC performance. When compared to other reaction times (12,18, and 24 hours), the NiÀ MOF produced with 30 hours demonstrated significantly improved electrochemical energy storage (EES) performance. Cyclic voltammetry (CV) measurements were initially performed to assess the capacitance performance of the NiÀ MOF electrode at various scan rates.…”

Section: Pristine Nià Mofmentioning

confidence: 99%

Potential Applications of Nickel‐Based Metal‐Organic Frameworks and their Derivatives

Helal

Shah

Usman

et al. 2022

The Chemical Record

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Metal‐Organic Frameworks (MOFs), a novel class of porous extended crystalline structures, are favored in different fields of heterogeneous catalysis, CO2 separation and conversion, and energy storage (supercapacitors) due to their convenience of synthesis, structural tailor‐ability, tunable pore size, high porosity, large specific surface area, devisable structures, and adjustable compositions. Nickel (Ni) is a ubiquitous element extensively applied in various fields of catalysis and energy storage due to its low cost, high abundance, thermal and chemical stability, and environmentally benign nature. Ni‐based MOFs and their derivatives provide us with the opportunity to modify different properties of the Ni center to improve their potential as heterogeneous catalysts or energy storage materials. The recent achievements of Ni−MOFs and their derivatives as catalysts, membrane materials for CO2 separation and conversion, electrode materials and their respective performance have been discussed in this review.

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Functional metal-organic frameworks for metal removal from aqueous solutions

Cited by 23 publications

References 129 publications

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

Metal organic framework derived NaCoxOy for room temperature hydrogen sulfide removal

Potential Applications of Nickel‐Based Metal‐Organic Frameworks and their Derivatives

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