Cargando…
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...
Autores principales: | , , |
---|---|
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 |
_version_ | 1783243377529061376 |
---|---|
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. |
format | Online Article Text |
id | pubmed-5468178 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT jiangfengrui facilesynthesisandopticalpropertiesofsmallseleniumnanocrystalsandnanorods AT caiweiquan facilesynthesisandopticalpropertiesofsmallseleniumnanocrystalsandnanorods AT tanguolong facilesynthesisandopticalpropertiesofsmallseleniumnanocrystalsandnanorods |