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Effect of Nickel Doping on the Properties of Hydroxyapatite Nanoparticles

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Herein, we studied the effect of nickel (Ni) doping on the properties of hydroxyapatite (HAp) nanoparticles synthesized by facile ultrasonication assisted wet chemical synthesis process. Various doping concentrations of nickel, i.e., 0.01 M, 0.05 M and 0.10 M, were used to dope into hydroxyapatite nanoparticles. The synthesized nanoparticles were characterized by X-ray diffraction (XRD) pattern, scanning electron spectroscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, UV-Visible spectroscopy and Raman-scattering spectroscopy. The detailed structural characterizations confirmed that the crystallite sizes of the Ni-doped hydroxyapatite nanoparticles were reduced up to 53% compared to pure hydroxyapatite upon the doping of different concentrations of Ni ions. The agglomeration in the nanoparticles was also reduced by increasing the doping concentration of Ni ions. The XRD studies revealed that the average crystallite size of the synthesized Ni-doped HAp was decreased with increasing the concentration of Ni2+ ion doping and this observation was well-consistent with the SEM results. The FTIR and Raman studies well-confirmed the formation of pure HAp and Ni-doped HAp. Further, doping with Ni creates a new level of energy between the conductive band and the valence band and hence with increasing the concentration of Ni2+, the intensity in the UV-vis spectra was enhanced.
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Keywords: Hydroxyapatite; Nanoparticles; Ni2+ Doping

Document Type: Research Article

Affiliations: 1: Energy and Biophotonics Lab, Department of Physics, AMET Deemed to be University, Kanathur, Chennai 603112, Tamil Nadu (TN), India 2: Crystal Growth Centre, Anna University, Chennai 600025, Tamil Nadu, India 3: Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, 61413 Abha, Saudi Arabia 4: Depertment of Chemistry, Faculty of Arts and Sciences and Promising Center for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Saudi Arabia 5: Department of Chemistry, College of Science, King Saud University, Riyadh-11451, Kingdom of Saudi Arabia

Publication date: April 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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