Improved preparation of electrospun MgO ceramic fibers with mesoporous structure and the adsorption properties for lead and cadmium

Xu, Chonghe; Yu, Zhichao; Yuan, Kangkang; Jin, Xiaotong; Shi, Shuying; Wang, Xinqiang; Zhu, Luyi; Zhang, Guanghui; Xü, Dong; Jiang, He

doi:10.1016/j.ceramint.2018.11.041

Cited by 41 publications

(11 citation statements)

References 36 publications

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“…The suggested mechanisms of Cd adsorption by the nano-composite are in accord with Xu et al (2019) [50] who concluded that both cation exchange and precipitation reactions control sorption process of Cd on mesoporous MgO ceramic fibers. They demonstrated that Cd can be adsorbed on MgO to form CdO as a result of cation exchange reaction between Mg and Cd.…”

Section: Suggested CD Adsorption Mechanismssupporting

confidence: 80%

Using nano-magnesium oxide/bentonite composite for cadmium removal from industrial wastewater

Elkhatib

Moharem

Saad

et al. 2022

Environmental Engineering Research

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Nowadays, the removal of toxic heavy metals from industrial wastewater is a long standing problem due to the industrial progress worldwide. This study mainly focused on the production of a novel nMgO-bentonite nanocomposite using sol–gel method to enhance Cd ions removal from industrial wastewater. The nMgO-bentonite nano-composite was characterized for structural morphology and presence of functional groups using SEM/EDS, XRD and FTIR analysis. Cadmium sorption equilibrium and kinetic data were well fitted to Langmuir and power function models respectively as confirmed by the highest R<sup>2</sup> (0.965), and the lowest SE (38*10<sup>-6</sup>) values among other studied models. The Langmuir removal capacity of the nanocomposite is 200 mg/g which is 60 times greater than that of bentonite. Increased Cd sorption on nano-composite with increased temperature from 287 to 307K and the thermodynamic results revealed that Cd adsorption process was endothermic and spontaneous. The data also showed highly repetitive application of nano-composite during six cycles of adsorption/ desorption experiment. The final results pointed out that nMgO-bentonite nano-composite has great adsorption affinity for Cd and could potentially employ as a cost-effective, ecofriendly and efficient sorbent for Cd removal from contaminated wastewater.

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Section: Suggested CD Adsorption Mechanismssupporting

confidence: 80%

Using nano-magnesium oxide/bentonite composite for cadmium removal from industrial wastewater

Elkhatib

Moharem

Saad

et al. 2022

Environmental Engineering Research

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“…During the past two decades, adsorption as a simple and effective method has been widely used to remove heavy metal ions. [4][5][6][7] Activated carbon is commonly used as an adsorbent, but there are certain limitations due to the relatively high cost and particularly the difficulty in the regeneration. 8 Natural mineral materials can be used as an alternative due to their unique surface and porous structure.…”

Section: Introductionmentioning

confidence: 99%

A facile fabrication of sepiolite mineral nanofibers with excellent adsorption performance for Cd²⁺ ions

et al. 2019

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“…The presence of the oxygen in air then proceeds to the conversion of ceramic particles to oxides. Pyrolyzing in an inert atmosphere (N 2 or Ar) changes the polymer structure to a carbon and graphite structure, which increases the adsorption ability of the nanofibers [ 51 ]. In this state, ceramic particles react with N 2 and increase the nitrides in the nanofiber structure.…”

Section: Types Of Electrospun Nanofiber Compositesmentioning

confidence: 99%

“…Then, through the calcination process, the nanoparticles are stabilized, and homogenous surface-treated electrospun ceramic nanofibers are fabricated. In addition, the carbonization step increases the porosity of the nanofibers and enhances the nanofiber surface area [ 48 , 51 ]. In one study, ZnO/In 2 O 3 electrospun composite ceramic nanofibers were fabricated using a co-electrospinning technique [ 55 ].…”

Section: Types Of Electrospun Nanofiber Compositesmentioning

confidence: 99%

Progress on the Fabrication and Application of Electrospun Nanofiber Composites

et al. 2020

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Nanofibers are one of the most attractive materials in various applications due to their unique properties and promising characteristics for the next generation of materials in the fields of energy, environment, and health. Among the many fabrication methods, electrospinning is one of the most efficient technologies which has brought about remarkable progress in the fabrication of nanofibers with high surface area, high aspect ratio, and porosity features. However, neat nanofibers generally have low mechanical strength, thermal instability, and limited functionalities. Therefore, composite and modified structures of electrospun nanofibers have been developed to improve the advantages of nanofibers and overcome their drawbacks. The combination of electrospinning technology and high-quality nanomaterials via materials science advances as well as new modification techniques have led to the fabrication of composite and modified nanofibers with desired properties for different applications. In this review, we present the recent progress on the fabrication and applications of electrospun nanofiber composites to sketch a progress line for advancements in various categories. Firstly, the different methods for fabrication of composite and modified nanofibers have been investigated. Then, the current innovations of composite nanofibers in environmental, healthcare, and energy fields have been described, and the improvements in each field are explained in detail. The continued growth of composite and modified nanofiber technology reveals its versatile properties that offer alternatives for many of current industrial and domestic issues and applications.

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Improved preparation of electrospun MgO ceramic fibers with mesoporous structure and the adsorption properties for lead and cadmium

Cited by 41 publications

References 36 publications

Using nano-magnesium oxide/bentonite composite for cadmium removal from industrial wastewater

Using nano-magnesium oxide/bentonite composite for cadmium removal from industrial wastewater

A facile fabrication of sepiolite mineral nanofibers with excellent adsorption performance for Cd²⁺ ions

Progress on the Fabrication and Application of Electrospun Nanofiber Composites

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Improved preparation of electrospun MgO ceramic fibers with mesoporous structure and the adsorption properties for lead and cadmium

Cited by 41 publications

References 36 publications

Using nano-magnesium oxide/bentonite composite for cadmium removal from industrial wastewater

Using nano-magnesium oxide/bentonite composite for cadmium removal from industrial wastewater

A facile fabrication of sepiolite mineral nanofibers with excellent adsorption performance for Cd2+ ions

Progress on the Fabrication and Application of Electrospun Nanofiber Composites

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A facile fabrication of sepiolite mineral nanofibers with excellent adsorption performance for Cd²⁺ ions