Comparative studies on structural, magnetic and adsorptive properties of fused Fe2O3@ SiO2and rattle shapedSiO2@Fe2O3nanospheres with reversal of core-shell

Kaur, Jaskirat; Kaur, Manpreet

doi:10.1016/j.matchemphys.2019.122548

Cited by 8 publications

(1 citation statement)

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“…SiO 2 –TiO 2 -based nanocomposites have been reported for the removal of methyl orange, methylene blue, and Staphylococcus aureus (S. aureus). − In previous reports of our lab, core–shell nanocomposites of SiO 2 with MgFe 2 O 4 , Fe 2 O 3 , and Sr 0.4 Ti 0.6 Fe 2 O 4.6 have been documented as adsorbents and photocatalysts. − SiO 2 thickness is an important parameter that can alter the photocatalytic properties of core–shell nanocomposites. In this article, for the first time, we have studied the effect of SiO 2 thickness on the photocatalytic and antibacterial activity of Ti 4+ - and Mg 2+ -substituted strontium ferrite (Sr 0.4 Ti 0.4 Mg 0.2 Fe 2 O 4.4 ).…”

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confidence: 99%

Precise Tuning of SiO₂ Thickness in SiO₂@Sr_0.4Ti_0.4Mg_0.2Fe₂O_4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

Kaur,

Vyas

2023

ACS Sustainable Chem. Eng.

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Core–shell heterostructures have attracted great concern as promising visible light-driven photocatalysts. Herein, core–shell nanocomposites of SiO2@Sr0.4Ti0.4Mg0.2Fe2O4.4 with varying SiO2 thickness were rationally designed. Effect of modulating the SiO2 thickness on the structural and optical properties was studied. Homogenous SiO2 layer of varying thickness was coated over Sr0.4Ti0.4Mg0.2Fe2O4.4 NPs. HRTEM and XRD analyses confirmed the successful formation of core–shell nanocomposites. The photocatalytic performance was evaluated by using tetracycline hydrochloride, azure-B, Staphylococcus aureus, and Escherichia coli as model pollutants. Maximum enhancement in photocatalytic activity was observed in a core–shell nanocomposite having an average shell thickness of 24 nm. The results were supported by its higher porosity and specific surface area, along with a narrowed band gap and fluorescence quenching. The formation of the core–shell heterojunction promoted charge separation. Under the optimized conditions of irradiation time, pH, and dose, its degradation efficiency was 96.5% for tetracycline hydrochloride, 96.3% for azure-B, 97.1% for S. aureus, and 95.4% for E. coli. Hydroxyl radicals and holes played a vital role in the degradation process. The photocatalytic parameters were optimized using Box–Behnken statistical methodology. This work bears broad potential for fabricating an efficient and high-performance photocatalyst of SiO2 with ferrite having a core–shell heterostructure.

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Section: Introductionmentioning

confidence: 99%

Precise Tuning of SiO₂ Thickness in SiO₂@Sr_0.4Ti_0.4Mg_0.2Fe₂O_4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

Kaur,

Vyas

2023

ACS Sustainable Chem. Eng.

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Magnesium ferrite-nitrogen–doped graphene oxide nanocomposite: effective adsorptive removal of lead(II) and arsenic(III)

Kaur

Singh

Feng

et al. 2022

Environ Sci Pollut Res

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Cationic surfactant templated synthesis of magnetic mesoporous nanocomposites for efficient removal of Light Green

Erdem

Tekin

2021

Korean J. Chem. Eng.

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Comparative studies on structural, magnetic and adsorptive properties of fused Fe2O3@ SiO2and rattle shapedSiO2@Fe2O3nanospheres with reversal of core-shell

Cited by 8 publications

References 57 publications

Precise Tuning of SiO₂ Thickness in SiO₂@Sr_0.4Ti_0.4Mg_0.2Fe₂O_4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

Precise Tuning of SiO₂ Thickness in SiO₂@Sr_0.4Ti_0.4Mg_0.2Fe₂O_4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

Magnesium ferrite-nitrogen–doped graphene oxide nanocomposite: effective adsorptive removal of lead(II) and arsenic(III)

Cationic surfactant templated synthesis of magnetic mesoporous nanocomposites for efficient removal of Light Green

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Comparative studies on structural, magnetic and adsorptive properties of fused Fe2O3@ SiO2and rattle shapedSiO2@Fe2O3nanospheres with reversal of core-shell

Cited by 8 publications

References 57 publications

Precise Tuning of SiO2 Thickness in SiO2@Sr0.4Ti0.4Mg0.2Fe2O4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

Precise Tuning of SiO2 Thickness in SiO2@Sr0.4Ti0.4Mg0.2Fe2O4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

Magnesium ferrite-nitrogen–doped graphene oxide nanocomposite: effective adsorptive removal of lead(II) and arsenic(III)

Cationic surfactant templated synthesis of magnetic mesoporous nanocomposites for efficient removal of Light Green

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Precise Tuning of SiO₂ Thickness in SiO₂@Sr_0.4Ti_0.4Mg_0.2Fe₂O_4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity

Precise Tuning of SiO₂ Thickness in SiO₂@Sr_0.4Ti_0.4Mg_0.2Fe₂O_4.4 Core–Shell Nanocomposites for Augmenting Photocatalytic and Antibacterial Activity