Synthesis and characterization of zinc sulphide nanoparticles prepared by mechanochemical route

Pathak, Chandra S.; Mandal, Mrinal Kanti; Agarwala, Vijaya

doi:10.1016/j.spmi.2013.03.011

Cited by 45 publications

(16 citation statements)

References 16 publications

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“…The Tauc's plots for the samples are given in the inset. The relation between the incident photon energy (hm) and absorption co-efficient (a) for direct allowed transition is given by the relation [28] ahm ð Þ…”

Section: Optical Propertiesmentioning

confidence: 99%

Structural, spectral and electrical properties of green synthesized ZnS nanoparticles using Elaeocarpus floribundus leaf extract

Senapati¹,

Sarkar

2015

J Mater Sci: Mater Electron

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The present study reports an environment friendly method for the synthesis of zinc sulphide (ZnS) nanoparticles using an aqueous extract of Elaeocarpus floribundus (Indian olive) leaf that acts as a capping as well as a stabilizing agent. X-ray diffraction and selected area electron diffraction studies confirm cubic structure of the nanoparticles. Transmission electron microscopy shows spherical in shape of the particles with diameter ranging from 8 to 3 nm. Static and high frequency optical dielectric constants are determined for all the samples. The optical band gap calculated from Tauc's plot is found to increase from 3.8 to 4.1 eV. The refractive index of the samples is calculated using Moss and Herve-Vandamme models. The room temperature photoluminescence spectra of the samples show a broad peak centred at 440 nm. The biomolecules involve in the formation of ZnS nanoparticles are studied by Fourier transform infrared spectroscopy analysis. The possible growth mechanism of the synthesized ZnS nanoparticles is also discussed. Current-voltage characteristics under illumination exhibit anomalous behaviour, it shows peak through sudden rise and fall of current with increase of voltage.

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Section: Optical Propertiesmentioning

confidence: 99%

Structural, spectral and electrical properties of green synthesized ZnS nanoparticles using Elaeocarpus floribundus leaf extract

Senapati¹,

Sarkar

2015

J Mater Sci: Mater Electron

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“…The XRD for ZnS shows three main diffraction peaks at 2θ values 31.61, 34.28 and 36.08. The obtained peak positions correspond to Zinc blended type patterns and the XRD pattern is well matched with standard cubic ZnS [6]. The XRD of ZrS 2 /ZnS nanoparticles are compared with ZnS nanoparticles and are as follows.…”

Section: X-ray Diffractionmentioning

confidence: 69%

“…Among the various semiconducting materials, ZnS is a wide-band gap semiconductor of 3.8 eV having luminescent properties and photocatalytic applications. ZnS is one of the II-VI semiconducting material finding application in Cathode ray tubes, IR windows, injection lasers, ultraviolet light-emitting diodes and flat panel displays [5] [6]. Doping of metal ions into ZnS can influence the performance of these photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

An Investigation on Kinetics of Photo Catalysis, Characterization, Antibacterial and Antimitotic Property of Electrochemically Synthesized ZnS and Nano Photocatalysts

Uma¹,

Ananda²,

Ravishankar³

et al. 2017

MRC

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Zinc sulphide is one of the commercially important II-VI semiconductors having a wide band gap, rendering it a very attractive material for optical application especially in nanocrystalline form. Nanocomposites of ZnS and ZrS 2 /ZnS were prepared by simple electrochemical method; their photocatalytic properties had been investigated. The structure, composition and optical property of the product were characterized by X-ray diffraction (XRD), FE-SEM (EDAX), UV-VIS and IR techniques. The UV-VIS spectra exhibited a blue-shift with respect to that of bulk material due to quantum confinement effect. Kinetics of photocatalytic degradation of Indigo Carmine dye has been studied. The photocatalytic decolourization of the dye follows first order kinetics. The antimitotic and antibacterial activity of these nanoparticles was investigated.

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“…"Recently, superconductivity was observed at a very low temperature in organometallic compounds, perovskite, ceramics, cuprates, semiconductors, iron pnictides, iron chalcogenides, rare earth borocarbides, etc. [1][2][3][4]. NCs of different metal oxide shows a high order of conductivity due to their quantum size effects [5,6].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Study of Electrical Conductivity of Intermetallic and Nanocomposites: Subzero Temperature Superconductor

Kumar¹,

Bhateria²,

Singh³

et al. 2021

Preprint

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A comparative study of the electrical conductivity of intermetallic and corresponding nanocomposites at room and the subzero temperature was carried out by experimental and theoretical techniques. Four series of intermetallic compounds (IMCs) and nanocomposites (NCs) of Al2O3, ZnO, TiO2, and CuO were synthesized by high-temperature reactive synthesis and sol-gel technique, respectively. Heat treatment of NCs was carried out at 100, 200, 300, and 400°C. Characterization of NCs was carried out by UV-visible, FTIR, FE-SEM, and XRD techniques. Computational study (DMol3, CASTEP, Forcite, Reflex, and VAMP) was carried out to study the electronic and optical properties of metal nanoparticles. The influence of heat treatment, the addition of coinage metal and ferromagnetic material, effect of a decrease in temperature on the electrical conductivity of IMCs and NCs were thoroughly investigated. The electrical conductivity of NCs was found to increase with an increase in heat treatment temperature (up to 400°C) and with the decrease in temperature (-70°C). The addition of Hematite, α-Fe2O3, and coinage metal do not significantly increase the electrical conductivity of NCs at room temperature. The electrical conductivity of NCs was found to be higher than IMCs and coinage metals. Hence, synthesized NCs can have a large number of potential applications in nanowires, quantum dots, and nano cables with very low resistivity (10-6 ΩWm-1).

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Synthesis and characterization of zinc sulphide nanoparticles prepared by mechanochemical route

Cited by 45 publications

References 16 publications

Structural, spectral and electrical properties of green synthesized ZnS nanoparticles using Elaeocarpus floribundus leaf extract

Structural, spectral and electrical properties of green synthesized ZnS nanoparticles using Elaeocarpus floribundus leaf extract

An Investigation on Kinetics of Photo Catalysis, Characterization, Antibacterial and Antimitotic Property of Electrochemically Synthesized ZnS and Nano Photocatalysts

Experimental and Theoretical Study of Electrical Conductivity of Intermetallic and Nanocomposites: Subzero Temperature Superconductor

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