Inducing multiple functionalities in ZnS nanoparticles by doping Ni+2 ions

Dixit, Namrata; Anasane, Nishant; Chavda, Mukesh; Bodas, Dhananjay; Soni, Hemant

doi:10.1016/j.materresbull.2013.02.011

Cited by 17 publications

(6 citation statements)

References 27 publications

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“…Then, 19 this concentrated waste is either incinerated or dumped on land 20 contributing to another type of pollution. The same is true for 21 chemical methods of removal of pollutants using advanced 22 oxidation processes as well. The ground reality is that the available 23 traditional techniques are primitive and unable to destroy wastes 24 completely by transforming into harmless minerals or gases [2].…”

Section: Introductionmentioning

confidence: 89%

Photocatalytic activity of Fe doped ZnS nanoparticles and carrier mediated ferromagnetism

Dixit

Vaghasia

Soni

et al. 2015

Journal of Environmental Chemical Engineering

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Section: Introductionmentioning

confidence: 89%

Photocatalytic activity of Fe doped ZnS nanoparticles and carrier mediated ferromagnetism

Dixit

Vaghasia

Soni

et al. 2015

Journal of Environmental Chemical Engineering

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“…When Ni doping concentration = 0.03, the intensity of the PL spectrum reaches maximum, whereas when the Ni doping concentration is greater than 3%, the intensity of Zn 1− Ni S (505 nm) (520 nm) (610 nm) (325 nm) samples decreases slightly with the increase of Ni amount. The substitution of Zn 2+ ions by Ni 2+ ions could increase the number of trapped electron hole pairs and emit more photons and generate new radiation centers, which enhances the PL intensity [23]. The subsequent quenching may be attributed to the capture ability of transition metal nickel ions better than the anion vacancy defect centers to the photo-excited electrons.…”

Section: Photoluminescence Studiesmentioning

confidence: 99%

Optical and Magnetic Properties of Ni Doped ZnS Diluted Magnetic Semiconductors Synthesized by Hydrothermal Method

Wei

Zhao

et al. 2017

Journal of Nanomaterials

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Diluted magnetic semiconductors Zn 1− Ni S with different consistency ratio ( = 0, 0.01, 0.03, 0.05, and 0.07) were successfully synthesized by hydrothermal method using ethylenediamine as a modifier. The influence of Ni doping concentration on the microstructure, morphology, and optical and magnetic properties of undoped and Ni doped ZnS nanocrystals was characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), X-ray energy dispersive spectrometry (XEDS), ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FT-IR), photoluminescence spectra (PL), and the vibrating sample magnetometer (VSM), respectively. The experiment results show the substitution of Ni 2+ on Zn 2+ sites without changing the hexagonal wurtzite structure of ZnS and generate single-phase Zn 1− Ni S with good crystallization. The lattice constant causes distortion and decreases with the increase of Ni 2+ doped concentration. The appearance of the samples is one-dimensional well-dispersed nanorods. UV-vis spectra reveal the band gap of all Zn 1− Ni S samples greater than that of bulk ZnS (3.67 eV), and blue shift phenomenon occurs. The photoluminescence spectra of undoped and doped samples possess the broad blue emission band in the range of 400-650 nm; the PL intensities of Zn 1− Ni S nanorods increase with the increase of Ni content comparing to pure ZnS and reach maximum for = 0.03. Magnetic measurements indicated that the undoped ZnS samples are superparamagnetic, whereas the doped samples exhibit ferromagnetism.

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“…This may create new radiation centers, resulting in increased intensity. 23 As the Fe concentration is increased further up to 10%, the doped Fe ions interfere with the radiative recombination which hides the effect of creation of new radiation centers, resulting in quenching of the fluorescence intensity. Similar observations for Ni-doped ZnS nanorods have been reported in the literature.…”

Section: Pl Studiesmentioning

confidence: 99%

“…These nanorods have applications as interconnects in a variety of nanoelectromechanical systems (NEMS) which are difficult to achieve with their bulk counterparts. Although several other studies of the PL and magnetic properties of transition metal-doped ZnS nanostructures have also been reported in the literature, [18][19][20][21][22][23][24][25][26] room-temperature magnetism induced in transition metal-doped ZnS DMS nanostructures remains a challenge.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Magnetic and Optical Properties of Wurtzite Fe-Doped ZnS Nanorods

Kumar

Verma

2015

Journal of Elec Materi

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The optical and magnetic properties of Fe-doped ZnS nanorods have been investigated at room temperature. X-ray diffraction revealed the doped and undoped nanorods had a wurtzite crystal structure. The lattice constants of Fe-doped ZnS nanorods were less than those of the undoped counterpart. The elemental composition of the Fe-doped ZnS nanorods was verified by use of electron dispersive spectroscopy, which confirmed the presence of Fe. Compared with the undoped counterpart, a blue shift in the absorption edge was observed for Fe-doped ZnS nanorods. Blue and green emission lines were obtained from undoped and Fe-doped ZnS nanorods at 447 nm and 533 nm, respectively. Study of photoluminescence intensity revealed quenching at higher Fe concentration. The ferromagnetic character induced in Fe-doped ZnS nanorods was analyzed by use of M-H curves. Magnetic saturation initially increased with increased Fe doping up to 5%, then decreased with Fe doping up to 10%.

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Inducing multiple functionalities in ZnS nanoparticles by doping Ni+2 ions

Cited by 17 publications

References 27 publications

Photocatalytic activity of Fe doped ZnS nanoparticles and carrier mediated ferromagnetism

Photocatalytic activity of Fe doped ZnS nanoparticles and carrier mediated ferromagnetism

Optical and Magnetic Properties of Ni Doped ZnS Diluted Magnetic Semiconductors Synthesized by Hydrothermal Method

Investigation of the Magnetic and Optical Properties of Wurtzite Fe-Doped ZnS Nanorods

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