Electrospun magnetically separable calcium ferrite nanofibers for photocatalytic water purification

EL-Rafei, Amira M.; El‐Kalliny, Amer S.; Gad‐Allah, Tarek A.

doi:10.1016/j.jmmm.2016.12.020

Cited by 37 publications

(14 citation statements)

References 22 publications

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“…Recently, other methods, as mentioned in the section 1, have been employed for the synthesis of ferrites such as combustion route, electrospinning and sol-gel [34,88,89]. Ansari et al…”

Section: Ferrite Photocatalysts For Water Detoxificationmentioning

confidence: 99%

Ferrite Materials for Photoassisted Environmental and Solar Fuels Applications

et al. 2019

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Ferrites are a large class of oxides containing Fe 3+ and at least another metal cation that have been investigated for and applied to a wide variety of fields ranging from mature technologies like circuitry, permanent magnets, magnetic recording and microwave devices to the most recent developments in areas like bioimaging, gas sensing, and photocatalysis. In the last respect, although ferrites have been less studied than other types of semiconductors, they present interesting properties such as visible light absorption, tuneable optoelectronic properties and high chemical and photochemical stability. The versatility of their chemical composition and of their crystallographic structure opened a playground for developing new catalysts with enhanced efficiency. This article reviews the recent development of the application of ferrites to photoassisted processes for environmental remediation and for the synthesis of solar fuels. Applications in the photocatalytic degradation of pollutants in water and air, photo-Fenton, and solar fuels production, via photocatalytic and photoelectrochemical water splitting and CO2 reduction, are reviewed paying special attention to the relationships between the physico-chemical characteristics of the ferrite materials and their photo-activated performance.

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“…Recently, other methods, as mentioned in the section 1, have been employed for the synthesis of ferrites such as combustion route, electrospinning and sol-gel [34,88,89]. Ansari et al…”

Section: Ferrite Photocatalysts For Water Detoxificationmentioning

confidence: 99%

Ferrite Materials for Photoassisted Environmental and Solar Fuels Applications

et al. 2019

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“…Both oxygen and hydroxyl radicals are capable of degrading organic matter but of the two, several studies have reported hydroxyl radicals to be more reactive and able to attack a wide range of organic species indiscriminately [24,25,35,38,39,55]. A semiconductor material having a bandgap between 1.7 eV and 3.1 eV would be considered visible light active i.e.…”

Section: Advances In Photocatalytic Treatment Of Pomementioning

confidence: 99%

Recent Advances in Photocatalytic Treatment of Palm Oil Mill Effluent (POME): A Review

Charles¹,

Cheng²

2018

IJET

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Palm oil mill effluent (POME) pollution is a serious issue that has gained the attention of an international audience including policy makers, mill owners, NGOs and academicians. With a production rate of 74 million metric tonnes a year, Malaysia is in dire need for new technologies able to address this mounting problem. While previous research has attempted to modify existing microbial driven organic degradation methods to optimize the organic load removal, new studies recognize the futility in this endeavour as mills are unwilling to change the way they operate and adopt these disruptive technologies. Instead current research aims at tertiary polishing technologies of which photocatalysis has emerged as a forerunner. Recent advances indicate photocatalytic treatment of POME is a viable solution to the problem but for it to be cost effective, future studies should focus on visible light driven processes and new reactor configurations to improve the photocatalytic activity of existing systems.

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“…[17] Superparamagnetic nanofibers were developed that produced active hydroxyl radicals, under light irradiation, for applications involving photocatalysis in water purification. [18] In another study, authors demonstrated that a functionalized magnetic nanofibrous composite could effectively remove chromium (VI) adsorbents from water. [19] In addition to other heavy metals, the presence of iron in groundwater is an issue affecting countries across the world.…”

Section: Introductionmentioning

confidence: 99%

Preparation of electrospun magnetic polyvinyl butyral/Fe₂O₃ nanofibrous membranes for effective removal of iron ions from groundwater

Peer

Cvek

Urbánek

et al. 2020

J of Applied Polymer Sci

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Removing iron ions from groundwater to purify, it is a challenge faced by countries across the globe, which is why developing polymeric microfiltration membranes has garnered much attention. The authors of this study set out to develop nanofibrous membranes by embedding magnetic Fe2O3 nanoparticles (MNPs) into polyvinylbutyral (PVB) nanofibers via the electrospinning process. Investigation was made into the effects of the concentration of the PVB and MNPs on the morphology of the nanofibers, their magnetic properties, and capacity for filtration to remove iron ions. The fabrication and presence of well‐incorporated MNPs in the PVB nanofibers were confirmed by scanning electron microscopy and transmission electron microscopy. Depending on the concentration of the MNPs, the membranes exhibited magnetization to the extent of 45.5 emu g−1; hence, they exceeded the performance of related nanofibrous membranes in the literature. The magnetic membranes possessed significantly higher efficiency for filtration compared to their nonmagnetic analogues, revealing their potential for groundwater treatment applications.

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Electrospun magnetically separable calcium ferrite nanofibers for photocatalytic water purification

Cited by 37 publications

References 22 publications

Ferrite Materials for Photoassisted Environmental and Solar Fuels Applications

Ferrite Materials for Photoassisted Environmental and Solar Fuels Applications

Recent Advances in Photocatalytic Treatment of Palm Oil Mill Effluent (POME): A Review

Preparation of electrospun magnetic polyvinyl butyral/Fe₂O₃ nanofibrous membranes for effective removal of iron ions from groundwater

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Electrospun magnetically separable calcium ferrite nanofibers for photocatalytic water purification

Cited by 37 publications

References 22 publications

Ferrite Materials for Photoassisted Environmental and Solar Fuels Applications

Ferrite Materials for Photoassisted Environmental and Solar Fuels Applications

Recent Advances in Photocatalytic Treatment of Palm Oil Mill Effluent (POME): A Review

Preparation of electrospun magnetic polyvinyl butyral/Fe2O3 nanofibrous membranes for effective removal of iron ions from groundwater

Contact Info

Product

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Preparation of electrospun magnetic polyvinyl butyral/Fe₂O₃ nanofibrous membranes for effective removal of iron ions from groundwater