Structural, morphological and optical properties of multifunctional magnetic-luminescent ZnO@Fe3O4 nanocomposite

Manikandan, A.; Yogasundari, M.; Thanrasu, K.; Dinesh, A.; Raja, K. Kanmani; Slimani, Y.; Jaganathan, Saravana Kumar; Srinivasan, Ramasamy; Baykal, A.

doi:10.1016/j.physe.2020.114291

Cited by 47 publications

(13 citation statements)

References 36 publications

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“…Photocatalysis, sensing, optoelectronics, and plasmonics are a few of the potential applications of these materials [13]. TMO nanoparticles (NPs) have recently gained prominence as prospective candidates for a range of scientific applications, including biological applications [14,15], smart materials [16], superconductors [17], radiation shielding [18], and many more. Oxide-based semiconductors, however, are preferred over others owing to their unique properties such as (1) capability for absorbing light, (2) having a long lifespan in an excited state, (3) transferring charge, and (4) having electronic structures.…”

Section: Introductionmentioning

confidence: 99%

Starch-assisted synthesis of WO₃ nanoparticles for degradation of crystal violet dye

Tiwari

Joshi

2023

Materials Science and Technology

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In the present study, WO3 nanoparticles (NPs) synthesised via starch-assisted co-precipitation approach and crystal violet (CV) dye was selected as a model pollutant to examine the photocatalytic efficiency of synthesised samples. The XRD of samples verified monoclinic phase with a crystallite size of 24 and 32 nm for starch-assisted WO3 (WS1) and without starch WO3 (WS0) NPs, respectively. SEM and FESEM analysed the morphology of synthesised samples and the average particle size of 108 nm is obtained for WS1. The bandgap value of WS1 has been calculated to be about 2.69 eV. According to obtained result, about 97% of CV dye degrades in the presence of WS1 under sunlight after 150 min with a rate constant of 0.01532 min−1.

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Section: Introductionmentioning

confidence: 99%

Starch-assisted synthesis of WO₃ nanoparticles for degradation of crystal violet dye

Tiwari

Joshi

2023

Materials Science and Technology

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“…The fabrication of amorphous materials with high surface roughness and surface area for higher electrocatalytic activity can be done easily, economically, and environmentally through the use of electrodeposition. Its binder-free method, which has more stickiness to the substrate and higher activity, is another advantage of electrodeposition over other methods used for the synthesis of these materials. − …”

Section: Introductionmentioning

confidence: 99%

Fabrication of Efficient Electrocatalysts for Electrochemical Water Oxidation Using Bimetallic Oxides System

et al. 2023

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The study focused on the fabrication of nickel, cobalt, and their bimetallic oxide via a facile electrodeposition approach over the surface of conducting glass has been reported here. Fabricated electrodes have been employed as binder-free and effective anode materials toward oxygen evolution reactions (OER) in electrochemical water splitting at high pH. Nickel and cobalt oxides showed overpotential values of 520 mV and 536 mV at the current density of 10 mAcm −2 with charge transfer resistances of 170 and 195 Ω. For bimetallic oxides (NiCoO@FTO), the overpotential depressed up to 460 mV and lower charge transfer value of 80 Ω. Additionally, double-layer capacitance also boosted for the bimetallic oxide with a value of 199 μF as compared to monometallic nickel oxide (106 μF) and cobalt oxide (120 μF). Multimetal oxides of Ni−Co showed the best performance, which was further supported with larger electrochemical surface area. This facile approach toward the electrode fabrication could be a charming alternate to replace the Ru-and Ir-based expensive materials for OER in electrochemical water splitting.

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“…Their possible future usages in the field of spintronic devices are studied that including non‐volatile storage, spin light emitting diodes, spin valve transistors, logic devices, etc [31] . The DMSs with wide bandgap chalcogenides or oxides like CdSe, ZnSe, ZnO, TiO 2 , SnO 2 , In 2 O 3 , and GaN have received a significant amount of attention due to their optically transparent ferromagnetism (FM) over ambient temperature [32–37] . Joseph et al.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of Cu_0.66‐xZn_0.34+xSe Materials and Investigation of Their Structural, Optical, and Magnetic Properties

Parida,

Senapati,

Pradhan

et al. 2023

ChemistrySelect

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In the current paper, we have prepared Cu0.66‐xZn0.34+xSe materials by varying the concentration of copper and zinc (x=0, 0.085, 0.17, 0.255, 0.34) with the help of a facile one‐step hydrothermal method. The X‐ray diffraction study reveals that the as‐prepared nanomaterials show the polycrystalline property. The crystallinity increases with the variation of Zn concentration, and the average crystallite size was calculated in the 39 to 55 nm range. The morphological analysis shows the uniform and agglomerated particles having an average size of around 596 nm. High‐resolution transmission electron microscopy and selected area electron diffraction study reveal the crystalline phases of the prepared sample. The energy‐dispersive X‐ray analysis confirmed the presence of constituent elements in the sample. The sample shows a high optical bandgap in the range of 3.6 eV to 4.09 eV, which was calculated from absorbance spectra. Photoluminescence measurements of the samples were carried out with 532 nm laser excitation, where the defect‐related emission peaks in the 540–850 nm range are observed. A change in the bandgap and optical emission is observed for different compositions. The magnetic properties analysis through the vibrating sample magnetometer reveals that the prepared sample exhibits ferromagnetic behaviour at room temperature, which can be used in magnetic storage applications. The tuning of the optical properties of the samples by varying the copper and zinc concentrations will be useful for various photonic devices.

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Structural, morphological and optical properties of multifunctional magnetic-luminescent ZnO@Fe3O4 nanocomposite

Cited by 47 publications

References 36 publications

Starch-assisted synthesis of WO₃ nanoparticles for degradation of crystal violet dye

Starch-assisted synthesis of WO₃ nanoparticles for degradation of crystal violet dye

Fabrication of Efficient Electrocatalysts for Electrochemical Water Oxidation Using Bimetallic Oxides System

Hydrothermal Synthesis of Cu_0.66‐xZn_0.34+xSe Materials and Investigation of Their Structural, Optical, and Magnetic Properties

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Structural, morphological and optical properties of multifunctional magnetic-luminescent ZnO@Fe3O4 nanocomposite

Cited by 47 publications

References 36 publications

Starch-assisted synthesis of WO3 nanoparticles for degradation of crystal violet dye

Starch-assisted synthesis of WO3 nanoparticles for degradation of crystal violet dye

Fabrication of Efficient Electrocatalysts for Electrochemical Water Oxidation Using Bimetallic Oxides System

Hydrothermal Synthesis of Cu0.66‐xZn0.34+xSe Materials and Investigation of Their Structural, Optical, and Magnetic Properties

Contact Info

Product

Resources

About

Starch-assisted synthesis of WO₃ nanoparticles for degradation of crystal violet dye

Starch-assisted synthesis of WO₃ nanoparticles for degradation of crystal violet dye

Hydrothermal Synthesis of Cu_0.66‐xZn_0.34+xSe Materials and Investigation of Their Structural, Optical, and Magnetic Properties