Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology

Bao, Liu; Jian, Meipeng; Liu, Ruiping; Yao, Jianfeng; Zhang, Xiwang

doi:10.1016/j.colsurfa.2015.06.009

Cited by 121 publications

(39 citation statements)

References 32 publications

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“…In the case of the physical-based adsorption, various interactions can be responsible for the elevated adsorptive capability of MOFs as mentioned above. The net charge of the framework and the presence of specific functional groups have a positive impact on the extent of the physical interactions [61]. The manipulation of the above can be achieved by grafting of particular species/groups into the framework or by tuning the net charge as a result of the solution pH in which the adsorption takes place.…”

Section: Mechanisms Of Metal Ions Extraction With Metal-organic Framementioning

confidence: 99%

Extraction of Metal Ions with Metal–Organic Frameworks

et al. 2019

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Metal–organic frameworks (MOFs) are crystalline porous materials composed of metal ions or clusters coordinated with organic linkers. Due to their extraordinary properties such as high porosity with homogeneous and tunable in size pores/cages, as well as high thermal and chemical stability, MOFs have gained attention in diverse analytical applications. MOFs have been coupled with a wide variety of extraction techniques including solid-phase extraction (SPE), dispersive solid-phase extraction (d-SPE), and magnetic solid-phase extraction (MSPE) for the extraction and preconcentration of metal ions from complex matrices. The low concentration levels of metal ions in real samples including food samples, environmental samples, and biological samples, as well as the increased number of potentially interfering ions, make the determination of trace levels of metal ions still challenging. A wide variety of MOF materials have been employed for the extraction of metals from sample matrices prior to their determination with spectrometric techniques.

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Section: Mechanisms Of Metal Ions Extraction With Metal-organic Framementioning

confidence: 99%

Extraction of Metal Ions with Metal–Organic Frameworks

et al. 2019

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“…Relatively lower capacity for As(III) and the deformation of the crystal structure aer its adsorption, which was not observed in the present study suggest the possibility of a different driving mechanism. 14,15 3.4 Application for the analysis of arsenic levels below the WHO-recommended level…”

Section: àmentioning

confidence: 99%

“…12 In recent years, zeolitic imidazolate framework 8 (ZIF-8, Zn(2-methylimidazole) 2 ), a metal organic framework, has been reported to be able to uptake anionic arsenic oxide from water. [13][14][15][16][17][18][19] Such studies focused on demonstrating the signicantly higher adsorption capacity of ZIF-8 and its capability of lowering arsenic levels to <10 mg L À1 . Regarding the removal of arsenic, several cost-effective adsorbents and methods such as electrocoagulation have been widely reported.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of ng L⁻¹-level arsenic by ZIF-8 nanoparticles: application to the monitoring of environmental water

et al. 2018

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“…Furthermore, the pore surfaces that consist of organic-inorganic parts resulted into flexible and permanent porosity. Based on these excellent structure-related properties, MOFs were widely studied for gases adsorption applications such as methane and hydrogen storage, carbon dioxide capture, gases or molecular separation and as heterogeneous catalysis [10,11]. A series of MOFs with various structures were reported in the year 2000 by Yaghi and co-workers [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…A series of MOFs with various structures were reported in the year 2000 by Yaghi and co-workers [7,8]. Several types of MOFs such as MOF-5, MOF-74, MOF-177, HKUST-1, MIL-100 and MIL-101 are becoming potential solid materials as adsorbents to store substantial amounts of gases [10,11]. These gases are either for energy utilization or pollutant gases storage.…”

Section: Introductionmentioning

confidence: 99%

Water Adsorption Characteristics and Microcalorimetric Studies of MOF-5 and MOF-199 Synthesized Using ``Green'' Sol-Gel

et al. 2019

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In this study, types of porous metal-organic framework materials namely MOF-5 (robust framework), MOF-199 (open framework) in the non ion-exchanged condition was compared in terms of hydrophobicity-hydrophilicity of the surface. The investigations were done using microcalorimetric measurements of heat of immersions in water. MOF-5 and MOF-199 were synthesized using plant-based polymer of palm oil derived fatty alcohols (PODFA) as porous template using "green" sol-gel approach. The synthesis approach applied was environmental-friendly by eliminating the use of organic solvents and surfactants substituting with water and PODFA. X-ray diffraction patterns of MOF-199 exhibited prominent reflection peaks assigned to octahedral structure with small peak shift while MOF-5 exhibited truncated and full cubic morphology. PODFA with longer aliphatic carbon chain exhibited higher porosity and pore volume. The addition of PODFA increased the homogeneity of the cubic and octahedral single crystals typically observed in MOF-5 and MOF-199 morphology. This was due to the increased in immiscibility of metal oxide precursors and organic linkers hence allowing reactions to occur from all directions. PODFA molecules were suggested to form self-assemblies at the air-water interface governed by surface tension auto-oscillations and formed clusters on which metal oxide and organic linker precursors bind with. The water adsorption isotherms of MOF-5 and MOF-199 prepared in this study exhibited "gate-opening" effect at lower relative pressure not observed in other nanoporous framework structure made up of two-components such as organosilica materials.

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Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology

Cited by 121 publications

References 32 publications

Extraction of Metal Ions with Metal–Organic Frameworks

Extraction of Metal Ions with Metal–Organic Frameworks

Adsorption of ng L⁻¹-level arsenic by ZIF-8 nanoparticles: application to the monitoring of environmental water

Water Adsorption Characteristics and Microcalorimetric Studies of MOF-5 and MOF-199 Synthesized Using ``Green'' Sol-Gel

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Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology

Cited by 121 publications

References 32 publications

Extraction of Metal Ions with Metal–Organic Frameworks

Extraction of Metal Ions with Metal–Organic Frameworks

Adsorption of ng L−1-level arsenic by ZIF-8 nanoparticles: application to the monitoring of environmental water

Water Adsorption Characteristics and Microcalorimetric Studies of MOF-5 and MOF-199 Synthesized Using ``Green'' Sol-Gel

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Adsorption of ng L⁻¹-level arsenic by ZIF-8 nanoparticles: application to the monitoring of environmental water