Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications

Sr-doped ZnO nanoparticles have been synthesized using a soft chemical method. The doping ratio of Sr is varied in the range of 0 at.%, 3 at.%, and 5 at.% to 7 at.%. X-ray diffractograms revealed that the samples had hexagonal (wurtzite) structure without a trace of any mixed phase. The average crys...

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Autores principales:	R. Karthick, P. Sakthivel, C. Selvaraju, Mosae Selvakumar Paulraj
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Technology (General) T1-995
Acceso en línea:	https://doaj.org/article/fe6b4f3e2bb54070b3ae3d149977be65
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spelling	oai:doaj.org-article:fe6b4f3e2bb54070b3ae3d149977be652021-11-29T00:56:29ZTuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications1687-412910.1155/2021/8352204https://doaj.org/article/fe6b4f3e2bb54070b3ae3d149977be652021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/8352204https://doaj.org/toc/1687-4129Sr-doped ZnO nanoparticles have been synthesized using a soft chemical method. The doping ratio of Sr is varied in the range of 0 at.%, 3 at.%, and 5 at.% to 7 at.%. X-ray diffractograms revealed that the samples had hexagonal (wurtzite) structure without a trace of any mixed phase. The average crystallite size of the nanoparticles (NPs) ranged from 39 to 46 nm. The average crystallite size was increased for the initial doping (3 at.%) of Sr ions, and further increase in the doping ratio reduced the particle size due to some distortion produced in the lattice. The surface morphology of the samples and structure of the NPs were investigated using FESEM (Field Emission Scanning Electron Microscopy) and TEM (Transmission Electron Microscopy) pictures, respectively. EDX (energy-dispersive X-ray) spectroscopy confirmed the presence of strontium (Sr) in the host lattice. Photoluminescence and X-ray diffraction confirmed that the dopant ions replace some of the lattice zinc ions and that Sr2+ and Sr3+ ions coexist in the ZnO lattice. The Sr-doped ZnO exhibited violet and blue luminescence spectra at 408 nm and 492 nm, respectively. ZnO : Sr nanoparticles showed increased antibacterial activity against one gram-positive as well as one gram-negative bacteria.R. KarthickP. SakthivelC. SelvarajuMosae Selvakumar PaulrajHindawi LimitedarticleTechnology (General)T1-995ENJournal of Nanomaterials, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Technology (General) T1-995
spellingShingle	Technology (General) T1-995 R. Karthick P. Sakthivel C. Selvaraju Mosae Selvakumar Paulraj Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications
description	Sr-doped ZnO nanoparticles have been synthesized using a soft chemical method. The doping ratio of Sr is varied in the range of 0 at.%, 3 at.%, and 5 at.% to 7 at.%. X-ray diffractograms revealed that the samples had hexagonal (wurtzite) structure without a trace of any mixed phase. The average crystallite size of the nanoparticles (NPs) ranged from 39 to 46 nm. The average crystallite size was increased for the initial doping (3 at.%) of Sr ions, and further increase in the doping ratio reduced the particle size due to some distortion produced in the lattice. The surface morphology of the samples and structure of the NPs were investigated using FESEM (Field Emission Scanning Electron Microscopy) and TEM (Transmission Electron Microscopy) pictures, respectively. EDX (energy-dispersive X-ray) spectroscopy confirmed the presence of strontium (Sr) in the host lattice. Photoluminescence and X-ray diffraction confirmed that the dopant ions replace some of the lattice zinc ions and that Sr2+ and Sr3+ ions coexist in the ZnO lattice. The Sr-doped ZnO exhibited violet and blue luminescence spectra at 408 nm and 492 nm, respectively. ZnO : Sr nanoparticles showed increased antibacterial activity against one gram-positive as well as one gram-negative bacteria.
format	article
author	R. Karthick P. Sakthivel C. Selvaraju Mosae Selvakumar Paulraj
author_facet	R. Karthick P. Sakthivel C. Selvaraju Mosae Selvakumar Paulraj
author_sort	R. Karthick
title	Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications
title_short	Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications
title_full	Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications
title_fullStr	Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications
title_full_unstemmed	Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications
title_sort	tuning of photoluminescence and antibacterial properties of zno nanoparticles through sr doping for biomedical applications
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/fe6b4f3e2bb54070b3ae3d149977be65
work_keys_str_mv	AT rkarthick tuningofphotoluminescenceandantibacterialpropertiesofznonanoparticlesthroughsrdopingforbiomedicalapplications AT psakthivel tuningofphotoluminescenceandantibacterialpropertiesofznonanoparticlesthroughsrdopingforbiomedicalapplications AT cselvaraju tuningofphotoluminescenceandantibacterialpropertiesofznonanoparticlesthroughsrdopingforbiomedicalapplications AT mosaeselvakumarpaulraj tuningofphotoluminescenceandantibacterialpropertiesofznonanoparticlesthroughsrdopingforbiomedicalapplications
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Tuning of Photoluminescence and Antibacterial Properties of ZnO Nanoparticles through Sr Doping for Biomedical Applications

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