Co-axial electrospun hollow MgO nanofibers for efficient removal of fluoride ions from water

Sahoo, Shraban Kumar; Panigrahi, G.; Dhal, Jyoti Prakash; Sahoo, Jitendra Kumar; Behera, Akash Kumar; Panda, Prakash Chandra; Patel, Priyanka; Mund, Swagat Kumar; Muduli, Swapna Mayee; Panda, Lopamudra

doi:10.1016/j.colsurfa.2022.129877

Cited by 10 publications

(2 citation statements)

References 38 publications

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“…As a result, the removal rate of fluoride ions only reached 7.5%. This phenomenon occurred because the PO 4 3− ion carried a higher charge, facilitating its binding with H + ions in the solution, thereby influencing the solution's pH and consequently impacting the active sites of the ternary compound oxides [45,46]. In addition, the presence of PO 4 3− affected the HF species of fluoride, limiting the effective contact between the fluoride ions and the adsorption active site.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

The Constructing of the Oxide Phase Diagram for Fluoride Adsorption on La-Fe-Al: A Collaborative Study of Density Functional Calculation and Experimentation

Xie,

Xiao,

Huang

et al. 2024

Nanomaterials

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In recent years, fluoride pollution in water is a problem that has attracted much attention from researchers. The removal of fluoride-containing wastewater by adsorption with metal oxide as an adsorbent is the most common treatment method. Based on this, the effect of the doping ratio of La2O3, Fe2O3, and Al2O3 on the fluoride-removal performance was discussed by constructing a phase diagram. In this study, the adsorption mechanism of nanocrystalline lanthanum oxide terpolymer was investigated by density functional theory calculation and experiment. The optimal pH condition selected in the experiment was three, and the adsorption kinetics of fluoride ions were more consistent with the quasi-second-order kinetic model. The adsorption thermodynamics was more consistent with the Langmuir model. When the La-Fe-Al ternary composite oxides achieved the optimal adsorption efficiency for fluoride ions, the mass synthesis ratio was Al2O3:(Fe2O3:La2O3 = 1:2) = 1:100, resulting in a fluoride ion removal rate of up to 99.78%. Density functional calculations revealed that the La-Fe-Al ternary composite oxides had three important adsorption sites for La, Fe, and Al. Among them, the adsorption capacity for HF was Fe2O3 > La2O3 > Al2O3, and for F− was La2O3 > Al2O3 > Fe2O3. This provided good guidance for designing adsorbents to remove fluoride.

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Section: Adsorption Kineticsmentioning

confidence: 99%

The Constructing of the Oxide Phase Diagram for Fluoride Adsorption on La-Fe-Al: A Collaborative Study of Density Functional Calculation and Experimentation

Xie,

Xiao,

Huang

et al. 2024

Nanomaterials

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“…In this field, polymer fibers are functionalized by adding active ingredients in a mixed electrospinning process. Additionally, by adjusting post-treatment operations, different types of nanofibers, such as carbon nanofibers, metal oxide nanofibers, or composite nanofibers [ 22 , 23 ], can be produced (for instance, by heating nanofibers in different atmospheres). Electrospun nanofibers with various structures can be obtained using different spinning processes and by adjusting spinning parameters appropriately [ 24 , 25 , 26 ], such as porous fibers [ 27 , 28 ], hollow structures [ 29 , 30 ], hollow porous structures [ 31 , 32 ], core–shell fibers [ 33 , 34 , 35 , 36 ], Janus fibers [ 37 , 38 ], beaded fibers [ 39 , 40 ], and side-by-side structures [ 41 , 42 ].…”

Section: Introductionmentioning

confidence: 99%

Recent Progress of the Preparation and Application of Electrospun Porous Nanofibers

Wang

Cao

et al. 2023

Polymers

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Electrospun porous nanofibers have gained a lot of interest recently in various fields because of their adjustable porous structure, high specific surface area, and large number of active sites, which can further enhance the performance of materials. This paper provides an overview of the common polymers, preparation, and applications of electrospun porous nanofibers. Firstly, the polymers commonly used to construct porous structures and the main pore-forming methods in porous nanofibers by electrospinning, namely the template method and phase separation method, are introduced. Secondly, recent applications of electrospun porous nanofibers in air purification, water treatment, energy storage, biomedicine, food packaging, sensor, sound and wave absorption, flame retardant, and heat insulation are reviewed. Finally, the challenges and possible research directions for the future study of electrospun porous nanofibers are discussed.

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Remarkable High Adsorption of Methylene Blue Dye from Aqueous Solutions Using Facilely Synthesized MgFe2O4 Nanoparticles

Al-Wasidi

Algethami

Saad

et al. 2023

J Inorg Organomet Polym

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Co-axial electrospun hollow MgO nanofibers for efficient removal of fluoride ions from water

Cited by 10 publications

References 38 publications

The Constructing of the Oxide Phase Diagram for Fluoride Adsorption on La-Fe-Al: A Collaborative Study of Density Functional Calculation and Experimentation

The Constructing of the Oxide Phase Diagram for Fluoride Adsorption on La-Fe-Al: A Collaborative Study of Density Functional Calculation and Experimentation

Recent Progress of the Preparation and Application of Electrospun Porous Nanofibers

Remarkable High Adsorption of Methylene Blue Dye from Aqueous Solutions Using Facilely Synthesized MgFe2O4 Nanoparticles

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