La<sub>2</sub>O<sub>3</sub> nanoparticle/polyacrylonitrile nanofibers for bacterial inactivation based on phosphate control

He, Jiaojie; Wang, Wei; Shi, Wenxin; Cui, Fuyi

doi:10.1039/c6ra22374e

Cited by 31 publications

(3 citation statements)

References 37 publications

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“…Several studies have examined the antibacterial activity of La 2 O 3 [ [53] , [54] , [55] ]. The mechanism was attributed to nutritional inhibition by the absorption of phosphoric acids [ 54 , 55 ]. Actually, LMO exhibited higher activity than that of either La 2 O 3 or MoO 3 , which suggests synergic effects of La and Mo.…”

Section: Resultsmentioning

confidence: 99%

Effects of cerium and tungsten substitution on antiviral and antibacterial properties of lanthanum molybdate

Matsumoto

Sunada²,

Nagai³

et al. 2020

Materials Science and Engineering: C

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Powders of cerium (Ce)-substituted and tungsten (W)-substituted La 2 Mo 2 O 9 (LMO) were prepared using polymerizable complex method. Their antiviral and antibacterial performances were then evaluated using bacteriophage Qβ, bacteriophage Φ6, Escherichia coli , and Staphylococcus aureus . The obtained powders, which were almost single-phase, exhibited both antiviral and antibacterial properties. Effects of dissolved ions on their antiviral activity against bacteriophage Qβ were remarkable. A certain contribution of direct contact to the powder surface was also inferred along with the dissolved ion effect for antiviral activity against bacteriophage Φ6. Dissolved ion effects and pH values suggest that both Mo and W are in the form of polyacids. Antiviral activity against bacteriophage Φ6 was improved by substituting Ce for La in LMO. Similarly to LMO, Ce-substituted LMO exhibited hydrophobicity. Inactivation of alkaline phosphatase enzyme proteins was inferred as one mechanism of the antiviral and antibacterial activities of the obtained powders.

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Section: Resultsmentioning

confidence: 99%

Effects of cerium and tungsten substitution on antiviral and antibacterial properties of lanthanum molybdate

Matsumoto

Sunada²,

Nagai³

et al. 2020

Materials Science and Engineering: C

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“…It was also confirmed that the catalysts have no toxicity towards human cervical cancer cells (HeLa cells) and photocatalysts could be easily recycled and reused for their antibacterial activities. Last year La 2 O 3 nanoparticle-doped PAN nanofiber mats were prepared by an electrospinning process [172]. The metal oxide nanofibers were applied for bacterial inactivation based on a feasible antibacterial strategy through phosphate starvation.…”

Section: Other Applicationsmentioning

confidence: 99%

Recent Advances in the Synthesis of Metal Oxide Nanofibers and Their Environmental Remediation Applications

Mondal

2017

Inventions

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Recently, wastewater treatment by photocatalytic oxidation processes with metal oxide nanomaterials and nanocomposites such as zinc oxide, titanium dioxide, zirconium dioxide, etc. using ultraviolet (UV) and visible light or even solar energy has added massive research importance. This waste removal technique using nanostructured photocatalysts is well known because of its effectiveness in disintegrating and mineralizing the unsafe organic pollutants such as organic pesticides, organohalogens, PAHs (Polycyclic Aromatic Hydrocarbons), surfactants, microorganisms, and other coloring agents in addition to the prospect of utilizing the solar and UV spectrum. The photocatalysts degrade the pollutants using light energy, which creates energetic electron in the metal oxide and thus generates hydroxyl radical, an oxidative mediator that can oxidize completely the organic pollutant in the wastewater. Altering the morphologies of metal oxide photocatalysts in nanoscale can further improve their photodegradation efficiency. Nanoscale features of the photocatalysts promote enhance light absorption and improved photon harvest property by refining the process of charge carrier generation and recombination at the semiconductor surfaces and in that way boost hydroxyl radicals. The literature covering semiconductor nanomaterials and nanocomposite-assisted photocatalysis-and, among those, metal oxide nanofibers-suggest that this is an attractive route for environmental remediation due to their capability of reaching complete mineralization of organic contaminants under mild reaction conditions such as room temperature and ambient atmospheric pressure with greater degradation performance. The main aim of this review is to highlight the most recent published work in the field of metal oxide nanofibrous photocatalyst-mediated degradation of organic pollutants and unsafe microorganisms present in wastewater. Finally, the recycling and reuse of photocatalysts for viable wastewater purification has also been conferred here and the latest examples given.

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“…34 The peak at 1068 cm À1 was assigned to the asymmetric stretch vibration of P-O, and the peak at 560 cm À1 was related to the vibration of O-P-O. 35 It is noteworthy that, the La-O coordination peak vibration was found at 484 cm À1 on La 0.005 @Fe/C-A, which possibly happened due to the reaction between the La and the oxygen anion in the phosphate molecule. 36 Furthermore, the bands at 1068 cm À1 became stronger aer adsorbing phosphate, suggesting the existence of PO 4 3À on La 0.005 @Fe/C-A.…”

Section: Adsorbentmentioning

confidence: 99%

Facile synthesis of novel 3D flower-like magnetic La@Fe/C composites from ilmenite for efficient phosphate removal from aqueous solution

et al. 2019

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La₂O₃ nanoparticle/polyacrylonitrile nanofibers for bacterial inactivation based on phosphate control

Abstract: La2O3 nanoparticle-doped PAN nanofiber mats were prepared by an electrospinning process.

Cited by 31 publications

References 37 publications

Effects of cerium and tungsten substitution on antiviral and antibacterial properties of lanthanum molybdate

Effects of cerium and tungsten substitution on antiviral and antibacterial properties of lanthanum molybdate

Recent Advances in the Synthesis of Metal Oxide Nanofibers and Their Environmental Remediation Applications

Facile synthesis of novel 3D flower-like magnetic La@Fe/C composites from ilmenite for efficient phosphate removal from aqueous solution

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La2O3 nanoparticle/polyacrylonitrile nanofibers for bacterial inactivation based on phosphate control

Abstract: La2O3 nanoparticle-doped PAN nanofiber mats were prepared by an electrospinning process.

Cited by 31 publications

References 37 publications

Effects of cerium and tungsten substitution on antiviral and antibacterial properties of lanthanum molybdate

Effects of cerium and tungsten substitution on antiviral and antibacterial properties of lanthanum molybdate

Recent Advances in the Synthesis of Metal Oxide Nanofibers and Their Environmental Remediation Applications

Facile synthesis of novel 3D flower-like magnetic La@Fe/C composites from ilmenite for efficient phosphate removal from aqueous solution

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Product

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La₂O₃ nanoparticle/polyacrylonitrile nanofibers for bacterial inactivation based on phosphate control