ZnFe2O4 nanoparticles: Microwave-hydrothermal ionic liquid synthesis and photocatalytic property over phenol

“…synthesized the Ag‐cluster embedded ZFO nanoplates by using co‐precipitation method and used them in photodegradation application . A study demonstrated that ZFO prepared by microwave–hydrothermal method was found to be useful in phenol photodecomposition . Zhang et al .…”

Section: Introductionmentioning

confidence: 99%

Solar hydrogen generation from spinel ZnFe₂O₄photocatalyst: effect of synthesis methods

Dom

Chary

Subasri

et al. 2015

Int. J. Energy Res.

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SummaryThis paper investigates solar radiation‐induced photocatalytic hydrogen generation using spinel ZnFe2O4 (ZFO) photocatalysts fabricated using different routes, viz., solid state reaction (SSR), polymer complex (PC), microwave sintering (μW) and self‐propagating combustion (SPC) method. The physicochemical properties of the photocatalysts like crystallinity, surface area, band gap and band energetics is studied as it influences their photochemical behavior. The study reveals a high crystallinity of the ZFO photocatalysts, those are synthesized using SSR, PC and μW methods, where SSR method yields the larger dimension crystallites of ~53 nm. The nanoparticles obtained from SPC methodology exhibit a relatively large surface area and a smaller crystallite size of around ~18 nm. Monodispersed particles with comparatively large surface area are obtained in the case of PC method. ZFO obtained from μW synthesis exhibits enhanced optical properties, thus favoring high absorption of solar photons. A relatively more negative flat band potential is displayed by the μW samples (−0.543 vs normal hydrogen electrode) as estimated from the electrochemical measurements. Consequently, these samples yield a higher quantum yield (0.19%) for hydrogen evolution even without co‐catalyst loading. On the contrary, the photocatalysts obtained by SSR and PC methods did display an enhancement in the quantum yield as compared to the μW samples but only after Pt co‐catalyst loading. Copyright © 2015 John Wiley & Sons, Ltd.

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“…In the same sense, the loss factor phenomena is the reason why some ferrite materials can be synthesized at low temperatures only when microwave heating is used [63]. Cao et al [64] …”

Section: Microwave-assisted Hydrothermal Crystallizationmentioning

confidence: 99%

Synthesis of advanced ceramics by hydrothermal crystallization and modified related methods

Ortíz-Landeros¹,

Gómez-Yáñez²,

López-Juárez³

et al. 2012

J Adv Ceram

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Abstract:The present article aims to give a brief overview about the advantages of the hydrothermal crystallization method for the synthesis of advanced ceramics. Emphasis is given, not only on the conventional hydrothermal crystallization, but also on some of its variants; such as ultrasound-assisted, electrochemical-assisted, microwave-assisted and surfactant-assisted hydrothermal methods which open up new opportunities for the synthesis of ceramic materials with novel properties demanded for advanced applications. In the current work the synthesis of barium titanate (BaTiO 3 ), lithium metasilicate (Li 2 SiO 3 ) and sodium-potassium niobate (Na, K)NbO 3 powders are reported as cases of study.

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ZnFe2O4 nanoparticles: Microwave-hydrothermal ionic liquid synthesis and photocatalytic property over phenol

Cited by 149 publications

References 30 publications

Preparation and photocatalytic property of α-Fe2O3 hollow core/shell hierarchical nanostructures

Preparation and photocatalytic property of α-Fe2O3 hollow core/shell hierarchical nanostructures

Solar hydrogen generation from spinel ZnFe₂O₄photocatalyst: effect of synthesis methods

Synthesis of advanced ceramics by hydrothermal crystallization and modified related methods

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ZnFe2O4 nanoparticles: Microwave-hydrothermal ionic liquid synthesis and photocatalytic property over phenol

Cited by 149 publications

References 30 publications

Preparation and photocatalytic property of α-Fe2O3 hollow core/shell hierarchical nanostructures

Preparation and photocatalytic property of α-Fe2O3 hollow core/shell hierarchical nanostructures

Solar hydrogen generation from spinel ZnFe2O4photocatalyst: effect of synthesis methods

Synthesis of advanced ceramics by hydrothermal crystallization and modified related methods

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Product

Resources

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Solar hydrogen generation from spinel ZnFe₂O₄photocatalyst: effect of synthesis methods