Novel PVA/MOF Nanofibres: Fabrication, Evaluation and Adsorption of Lead Ions from Aqueous Solution

Shooto, Ntaote David; Dikio, Charity Wokwu; Wankasi, Donbebe; Sikhwivhilu, Lucky; Mtunzi, Fanyana M.; Dikio, Ezekiel Dixon

doi:10.1186/s11671-016-1631-2

Cited by 49 publications

(27 citation statements)

References 37 publications

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“…The maximum calculated (q e ) value for Pb(II) ions was 171.42 mg/g. Co-MOF [34] have a maximum adsorption capacity corresponding to 50 % of the adsorption capacity value obtained for Cd-H 4 bta while Cu-MOF [35], Fe-MOF [36] and Zr-MOF [37,38] have adsorption capacity corresponding to only 42, 53 and 79 % respectively. The maximum adsorption capacity values of Cd-MOF for Cu(II), Pb(II) and Ni(II) ion (183.43, 171.42 and 120.31 mg/g) respectively indicated that this material is a potential candidate for removing metal ions from aqueous solution.…”

Section: Effect Of Concentration On Percentage Removalmentioning

confidence: 90%

Highly Porous MOF Adsorbent for Wastewater Treatment

Shooto¹,

Dikio²

2018

Asian J. Chem.

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Section: Effect Of Concentration On Percentage Removalmentioning

confidence: 90%

Highly Porous MOF Adsorbent for Wastewater Treatment

Shooto¹,

Dikio²

2018

Asian J. Chem.

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“…Synthesis of Ni-MOF: Ni-MOF was synthesized using the method adopted from Shooto et al [13]. A solvent, DMF of 80 mL was transferred into a round bottom flask.…”

Section: Methodsmentioning

confidence: 99%

“…The pollution of heavy metals in the environment is increasing because of improper disposal of industrial effluents from factories, which manufacture steel, dyes, fertilizers and many others [1]. It is therefore important to remove these pollutants from water.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study of Lead Ions on Nickel-Metal Organic Framework

et al. 2019

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Nickel(II) based metal-organic framework (MOF) was synthesized using terephthalic acid, C6H4(COOH)2 as an organic linker. This MOF was characterized and used as an adsorbent for the removal of lead ions in aqueous medium. Characterization was conducted by X-ray diffraction, Fourier transform infrared spectroscopy, thermal gravimetric analysis and scanning electron microscopy techniques. The removal of Pb2+ ions from aqueous medium varied with contact time, concentration, pH and temperature.

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“…[105][106][107] Thinfilm nanofiber membranes have been developed for various water treatment processes. For a similar application, Shooto et al [109] reported the fabrication of PVA/La-TBC, PVA/ Sr-TBC, and PVA/La-TBC nanofibers produced by the electrospinning method, where TBC is benzene 1,2,4,5-tetracarboxylate. However, the majority of the applications of nanofiber membranes in water treatment is limited to the microfiltration range, due to the relatively large pore sizes (≈1 µm) of nanofiber structures.…”

Section: Water Treatmentmentioning

confidence: 99%

Electrospinning of Metal–Organic Frameworks for Energy and Environmental Applications

2019

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organic linkers with a periodic, nanoscaled structure and ultrahigh surface areas. With their tunable pore/cage sizes, flexible skeleton, and large surface-to-volume ratio, [13][14][15][16][17][18][19] MOFs have a large potential for a wide range of applications, including gas storage and separation, rechargeable batteries, supercapacitors, solar cells, nanoreactors, heterogeneous catalysis, or drug delivery. [20][21][22][23][24][25][26][27] Recently, significant efforts have been devoted to the design and synthesis of new MOFs structures and the investigation of their physical or chemical properties. MOFs are generally prepared as bulk form through traditional hydrothermal or solvothermal synthesis. [28][29][30][31] In order to expand the application range, suitable pathways for the structuring of MOF powders into a functional architecture or devices are highly desirable.Currently, intensive efforts are focusing on the structuring of MOFs at the mesoscopic/macroscopic scale for the use as coatings, membranes, or sophisticated architectures in specific devices and applications. [32][33][34][35] A major difference in the structuring of MOFs into complex shapes compared to inorganic microporous materials, such as zeolites or silica, is the fact that most inorganic binders cannot be used for MOFs as these binders usually require heat treatment. The intrinsic fragility of MOFs needs to be considered which is related to the inorganic/organic hybrid character of this class of materials and the resulting limited thermal and mechanical stability. Alternatively, a more effective way to structure MOFs is the combination with polymer materials. The polymer which acts as a binder improves the mechanical flexibility and ensures chemical stability. Numerous methods have been developed for structuring MOF-polymer compositions including hard or soft templates, spin-or dip-coating, spray-drying, printing, or lithography approaches. [36][37][38] The integration of MOFs into a polymer matrix can result in poor MOF-polymer dispersion and compatibility issues owing to the different physical and chemical properties for the two kinds of materials and this is a challenge in some applications, e.g., in MOF-based mixed matrix membranes for gas separation. [39][40][41][42] The poor interfacial compatibility would lead to agglomeration of MOF particles, causing the formation of nonselective voids between the MOFs particles and the polymer.Electrospinning is a fabrication method to produce continuous ultrafine fibers with diameters in the range of a few tens of nanometers to a few micrometers in the form of nonwoven mats, yarns, etc. The mechanism of electrospinning is based Herein, recent developments of metal-organic frameworks (MOFs) structured into nanofibers by electrospinning are summarized, including the fabrication, post-treatment via pyrolysis, properties, and use of the resulting MOF nanofiber architectures. The fabrication and post-treatment of the MOF nanofiber architectures are described systematically by two routes: i) the dire...

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Novel PVA/MOF Nanofibres: Fabrication, Evaluation and Adsorption of Lead Ions from Aqueous Solution

Cited by 49 publications

References 37 publications

Highly Porous MOF Adsorbent for Wastewater Treatment

Highly Porous MOF Adsorbent for Wastewater Treatment

Adsorption Study of Lead Ions on Nickel-Metal Organic Framework

Electrospinning of Metal–Organic Frameworks for Energy and Environmental Applications

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