Structural Evolution of Nickel Doped Zinc Oxide Nanostructures

ABSTRACTIn this article, structural evolution in nickel doped zinc oxide nanostructures is reported. The ZnO nanostructures are synthesized with 1-10% of Ni doping adopting a chemical precipitation method. The undoped and doped nanostructures thus prepared, were systematically investigated employing X-ray diffraction (XRD), transmission and scanning electron microscopy (TEM/SEM), Fourier transform infrared (FTIR) and micro-Raman spectroscopy (μRS). The identification of wurtzite phase and determination of lattice parameters of Ni doped ZnO nanocrystallites is ascertained through XRD analysis. TEM/SEM images reveal the structural alteration of ZnO with variation of Ni doping concentrations. The study of vibrational modes of nanostructures at different stages of structural transformation, as performed through FTIR and Raman spectroscopy, assist in deciphering the crucial role of Ni doping concentration in gradual evolution of nickel doped ZnO structure from nanoparticles to nanorods.

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Antibacterial Activities of Zinc Oxide Nanostructures with Different Structures

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.294.36 ◽

2019 ◽

Vol 294 ◽

pp. 36-41

Author(s):

Rolen Brian P. Rivera ◽

Melchor J. Potestas ◽

Ma. Reina Suzette B. Madamba ◽

Rey Y. Capangpangan ◽

Bernabe L. Linog ◽

...

Keyword(s):

Zinc Oxide ◽

Sea Urchin ◽

Inhibition Zone ◽

Antibacterial Activities ◽

The Other ◽

Zno Nanostructures ◽

Zinc Oxide Nanostructures ◽

Sem Images ◽

Structural Morphology ◽

Oxide Nanostructures

We report on antibacterial activities of Zinc oxide (ZnO) with different structures. Fast furrier transform infrared spectroscopy ZnO nanostructures showed peaks in the range between 450–600 cm-1 indicating the successful growth through the presence of Zn-O stretching. On the other hand, impurities such as zinc complexes might be present due to the appearance of peaks at 1110 cm-1, 1390 cm-1 and 1506 cm-1. Furthermore, SEM images revealed that nanorods and sea-urchin like nanostructures are present in the produced ZnO nanostructures. Nanorods exhibit a better antibacterial response than the sea-urchin like structure. The change in structural morphology along with its purity has greatly influenced the area of bacterial inhibition zone during antibacterial testing.

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Zinc Oxide Nanostructures Doped with Transition Metals: Fabrication and Properties

International Journal of Nanoscience ◽

10.1142/s0219581x19400453 ◽

2019 ◽

Vol 18 (03n04) ◽

pp. 1940045 ◽

Cited By ~ 1

Author(s):

E. Chubenko ◽

I. Gerasimenko ◽

V. Bondarenko ◽

D. Zhigulin

Keyword(s):

Zinc Oxide ◽

Transition Metals ◽

Hydrothermal Method ◽

Zno Films ◽

Ferromagnetic Behavior ◽

Silicon Substrates ◽

Zinc Oxide Nanostructures ◽

Sem Images ◽

Nanostructured Films ◽

Oxide Nanostructures

ZnO nanostructured films doped with Co and Ni deposited by hydrothermal method on silicon substrates covered with undoped ZnO sublayer were studied. SEM images of the films demonstrated them to consist of densely packed vertical nanopillars. Doping ZnO films with Ni or Co at concentrations up to [Formula: see text][Formula: see text]cm[Formula: see text] quenches their UV-excited photoluminescence. The doping also leads to the slight ferromagnetic behavior of ZnO.

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Manganese-Doped Zinc Oxide Nanostructures as Potential Scaffold for Photocatalytic and Fluorescence Sensing Applications

Chemosensors ◽

10.3390/chemosensors8040120 ◽

2020 ◽

Vol 8 (4) ◽

pp. 120

Author(s):

Deepika Thakur ◽

Anshu Sharma ◽

Abhishek Awasthi ◽

Dharmender Singh Rana ◽

Dilbag Singh ◽

...

Keyword(s):

Zinc Oxide ◽

Zno Nanostructures ◽

Zinc Oxide Nanostructures ◽

Fluorescence Sensing ◽

X Ray ◽

Sensing Applications ◽

Oxide Nanostructures ◽

Vis Spectroscopy ◽

Doped Zno ◽

Mn Doped

Herein, we report the photocatalytic and fluorescence sensing applications of manganese-doped zinc oxide nanostructures synthesized by a solution combustion technique, using zinc nitrate as an oxidizer and urea as a fuel. The synthesized Mn-doped ZnO nanostructures have been analyzed in terms of their surface morphology, phase composition, elemental analysis, and optical properties with the help of scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), and UV-Visible (UV-Vis) spectroscopy. A careful observation of the SEM micrograph reveals that the synthesized material was porous and grown in very high density. Due to a well-defined porous structure, the Mn-doped ZnO nanostructures can be used for the detection of ciprofloxacin, which was found to exhibit a significantly low limit of detection (LOD) value i.e., 10.05 µM. The synthesized Mn-doped ZnO nanostructures have been further analyzed for interfering studies, which reveals that the synthesized sensor material possesses very good selectivity toward ciprofloxacin, as it detects selectively even in the presence of other molecules. The synthesized Mn-doped ZnO nanostructures have been further analyzed for the photodegradation of methyl orange (MO) dye. The experimental results reveal that Mn-doped ZnO behaves as an efficient photocatalyst. The 85% degradation of MO has been achieved in 75 min using 0.15 g of Mn-doped ZnO nanostructures. The observed results clearly confirmed that the synthesized Mn-dopedZnO nanostructures are a potential scaffold for the fabrication of sensitive and robust chemical sensors as well as an efficient photocatalyst.

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Shape Control in Zinc Oxide nanostructures by Precipitation Method

Journal of Physics Conference Series ◽

10.1088/1742-6596/1144/1/012044 ◽

2018 ◽

Vol 1144 ◽

pp. 012044 ◽

Cited By ~ 1

Author(s):

O Bundit ◽

K Wongsaprom

Keyword(s):

Zinc Oxide ◽

Shape Control ◽

Precipitation Method ◽

Zinc Oxide Nanostructures ◽

Oxide Nanostructures

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Synthesis and Characterization of Aluminum Doped Zinc Oxide Nanostructures by Nd:YAG Laser in Liquid

Iraqi Journal of Science ◽

10.24996/ijs.2020.61.10.15 ◽

2020 ◽

pp. 2590-2598

Author(s):

Khawla S. Khashan ◽

Ghassan M. Sulaiman ◽

Sura A. Hussain

Keyword(s):

Zinc Oxide ◽

Visible Region ◽

Laser Pulses ◽

Deionized Water ◽

Zinc Oxide Nanostructures ◽

Zno Nps ◽

Sem Images ◽

Oxide Nanostructures ◽

Aluminum Doped Zinc Oxide

Aluminum doped zinc oxide nanoparticles (AZO) with different doping concentrations were prepared by Nd-YAG laser ablation of target in deionized water. The characterization of these nanoparticles was performed using Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and photoluminance spectroscopy (PL). FTIR spectra confirmed the formation of vibrational bonds for ZnO NPs and AZO NPs. SEM images illustrated that the size and shape of the NPs changed with changing the number of laser pulses. Photoluminescence peaks exhibited two emission peaks, one at the UV region and the second in the visible region, which were modified as the number of laser pulses and doping concentration were changed.

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