Facile synthesis of metal-organic framework MOF-808 for arsenic removal

Li, Zongqun; Yang, Jian; Sui, Ke-Wen; Yin, Naiqiang

doi:10.1016/j.matlet.2015.08.004

Cited by 167 publications

(64 citation statements)

References 14 publications

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“…With these advantages of MOFs, they are attractive for new research. Previous study [18] reported that using MOF-808 as adsorbent is efficient at arsenic removal from water. Cu 3 (BTC) 2 -SO 3 H also exhibited high Cd(II) uptake capacity, thus has a potential use for cadmium removal [19].…”

mentioning

confidence: 99%

Isotherm Models of Heavy Metal Sorption onto Zinc-tricarboxylic

Kowsura¹,

Pangkumhang²,

Jutaporn³

et al. 2017

IJCEA

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mentioning

confidence: 99%

Isotherm Models of Heavy Metal Sorption onto Zinc-tricarboxylic

Kowsura¹,

Pangkumhang²,

Jutaporn³

et al. 2017

IJCEA

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“…Ti-MIL-125-NH 2 16 and Zr-UiO-66-NH 2 14 are the respective isoreticular motifs to Ti-MIL-125 and Zr-UiO-66 with polar and basic functionalities substituted on the diatopic organic linker. Zr-MOF-808 possesses an acidic pore and high surface area 17 . Zn-ZIF-8 contains polar properties but with narrow pore apertures (3.4 Å) that exhibit hydrophobic properties 18 .…”

Section: Resultsmentioning

confidence: 99%

“…preparation of Mofs. MOFs were prepared according to previously reported methods: Ti-MIL-125 13 , Ti-MIL-125-NH 2 16 , Zr-MOF-808 17 , Zr-UiO-66 14 , Zr-UiO-66-NH 2…”

Section: Mofmentioning

confidence: 99%

Reversible Atmospheric Water Harvesting Using Metal-Organic Frameworks

Logan

Langevin

Xia

2020

Sci Rep

112

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the passive capture of clean water from humid air without reliance on bulky equipment and high energy has been a substantial challenge and has attracted significant interest as a potential environmentally friendly alternative to traditional water harvesting methods. Metal-organic frameworks (MOFs) offer a high potential for this application due to their structural versatility which permits scalable, facile modulations of structural and functional elements. Although Mofs are promising materials for water harvesting, little research has been done to address the microstructure-adsorbing characteristics relationship with respect to the dynamic adsorption-desorption process. in this article, we present a parametric study of nine hydrolytically stable Mofs with diverse structures for unraveling fundamental material properties that govern the kinetics of water sequestration in this class of materials as well as investigating overall uptake capacity gravimetrically. The effects of temperature, relative humidity, and powder bed thickness on the adsorption-desorption process are explored for achieving optimal operational parameters. We found that Zr-MOF-808 can produce up to 8.66 L H2O kg −1 Mof day −1 , an extraordinary finding that outperforms any previously reported values for MOF-based systems. The presented findings help to deepen our understanding and guide the discovery of next-generation water harvesting materials.Despite the rapid growth of modern infrastructure, access to clean water remains a critical issue and challenge to humanity that is projected to increase at a rate faster than that of energy production 1 . Limited access to freshwater due to the absence of sources, such as lakes, rivers, and groundwater is becoming even more problematic, with many of these sources becoming contaminated from human activities. Traditional means to acquire clean water, such as reverse osmosis and distillation, is costly and energy-intensive which in turn restricts real-world uses 2,3 . Therefore, it is essential to find portable solutions that are simple and low cost to produce clean water on demand in various environments.A substantial effort on accessing nontraditional water reserves, such as atmospheric water vapor, focuses on the ability to supply freshwater on-demand virtually anywhere on the earth 4 . Atmospheric water harvesting offers an attractive alternative by providing access to the omnipresent water vapor in the earth's atmosphere off the grid and in virtually any environment. Direct water harvesting from air has been demonstrated through cooling water vapor below its saturation pressure is not practical in dry climates due to its high energy demands 3 .Metal-organic frameworks (MOFs) due to their unique micro-structure, intrinsic porosity, and unprecedented functional and chemical control have a high potential to be used for harvesting water from air 5,6 . Recently, the use of MOFs to leverage the earth's natural thermal swing process to efficiently sequester clean water with little to no additional energy inpu...

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“…This behavior was explained in terms of the high mass transfer velocity produced by the larger amount of adsorbate available in the more concentrated solution 3,42,43 . Table 4 shows a summary of the results reported in literature of the adsorption capacities obtained with different types of adsorbents [44][45][46] . As can be infered, the adsorption capacity of the adsorbatent depends on the initial concentration of the adsorbeate, and in consequence the saturation point or equilibrium may be shifted in any direction.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Study of the Adsorption of Arsenic (III and V) by Magnetite Nanoparticles Synthetized via AACVD

et al. 2016

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Globally, water pollution is mainly caused by the presence of heavy metals and metalloids such as arsenic. The majority of the techniques employed in the removal are of low efficiency and high cost. Therefore, in this work it is presented the adsorption processes of arsenic (As III and V) ions employing magnetite nanoparticles (MNPs) synthesized by the aerosol assisted chemical vapor deposition (AACVD) process. The adsorption efficiency was determined at different times and concentrations. The remaining As concentration in the solutions was analyzed by atomic absorption spectroscopy. The adsorbed As ions on the surface of the NMPs was analyzed by high resolution transmission electron microscopy. The results showed an overall removal efficiency of 87% for As +3 and 98% for As +5, in a contact time of 15 minutes. Results suggested the use of NMPs as a promising alternative in the removal of As ions in water.

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Facile synthesis of metal-organic framework MOF-808 for arsenic removal

Cited by 167 publications

References 14 publications

Isotherm Models of Heavy Metal Sorption onto Zinc-tricarboxylic

Isotherm Models of Heavy Metal Sorption onto Zinc-tricarboxylic

Reversible Atmospheric Water Harvesting Using Metal-Organic Frameworks

Study of the Adsorption of Arsenic (III and V) by Magnetite Nanoparticles Synthetized via AACVD

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