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Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods

Selenium is an important element for human’s health, small size is very helpful for Se nanoparticles to be absorbed by human's body. Here, we present a facile approach to fabrication of small selenium nanoparticles (Nano-Se) as well as nanorods by dissolving sodium selenite (Na(2)SeO(3)) in gly...

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Detalles Bibliográficos
Autores principales: Jiang, Fengrui, Cai, Weiquan, Tan, Guolong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5468178/
https://www.ncbi.nlm.nih.gov/pubmed/28610394
http://dx.doi.org/10.1186/s11671-017-2165-y
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author Jiang, Fengrui
Cai, Weiquan
Tan, Guolong
author_facet Jiang, Fengrui
Cai, Weiquan
Tan, Guolong
author_sort Jiang, Fengrui
collection PubMed
description Selenium is an important element for human’s health, small size is very helpful for Se nanoparticles to be absorbed by human's body. Here, we present a facile approach to fabrication of small selenium nanoparticles (Nano-Se) as well as nanorods by dissolving sodium selenite (Na(2)SeO(3)) in glycerin and using glucose as the reduction agent. The as-prepared selenium nanoparticles have been characterized by X-ray diffraction (XRD), UV-Vis absorption spectroscopy and high resolution transmission electron microscope (HRTEM). The morphology of small Se nanoparticles and nanorods have been demonstrated in the TEM images. A small amount of 3-mercaptoproprionic acid (MPA) and glycerin play a key role on controlling the particle size and stabilize the dispersion of Nano-Se in the glycerin solution. In this way, we obtained very small and uniform Se nanoparticles; whose size ranges from 2 to 6 nm. This dimension is much smaller than the best value (>20 nm) ever reported in the literatures. Strong quantum confinement effect has been observed upon the size-dependent optical spectrum of these Se nanoparticles.
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spelling pubmed-54681782017-06-26 Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods Jiang, Fengrui Cai, Weiquan Tan, Guolong Nanoscale Res Lett Nano Express Selenium is an important element for human’s health, small size is very helpful for Se nanoparticles to be absorbed by human's body. Here, we present a facile approach to fabrication of small selenium nanoparticles (Nano-Se) as well as nanorods by dissolving sodium selenite (Na(2)SeO(3)) in glycerin and using glucose as the reduction agent. The as-prepared selenium nanoparticles have been characterized by X-ray diffraction (XRD), UV-Vis absorption spectroscopy and high resolution transmission electron microscope (HRTEM). The morphology of small Se nanoparticles and nanorods have been demonstrated in the TEM images. A small amount of 3-mercaptoproprionic acid (MPA) and glycerin play a key role on controlling the particle size and stabilize the dispersion of Nano-Se in the glycerin solution. In this way, we obtained very small and uniform Se nanoparticles; whose size ranges from 2 to 6 nm. This dimension is much smaller than the best value (>20 nm) ever reported in the literatures. Strong quantum confinement effect has been observed upon the size-dependent optical spectrum of these Se nanoparticles. Springer US 2017-06-12 /pmc/articles/PMC5468178/ /pubmed/28610394 http://dx.doi.org/10.1186/s11671-017-2165-y Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Jiang, Fengrui
Cai, Weiquan
Tan, Guolong
Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods
title Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods
title_full Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods
title_fullStr Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods
title_full_unstemmed Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods
title_short Facile Synthesis and Optical Properties of Small Selenium Nanocrystals and Nanorods
title_sort facile synthesis and optical properties of small selenium nanocrystals and nanorods
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5468178/
https://www.ncbi.nlm.nih.gov/pubmed/28610394
http://dx.doi.org/10.1186/s11671-017-2165-y
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