Document Detail


Sonochemical synthesis of Dy2(CO3)3 nanoparticles, Dy(OH)3 nanotubes and their conversion to Dy2O3 nanoparticles.
MedLine Citation:
PMID:  20304697     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Dysprosium carbonates nanoparticles were synthesized by the reaction of dysprosium acetate and NaHCO(3) by a sonochemical method. Dysprosium oxide nanoparticles with average size about 17 nm were prepared from calcination of Dy(2)(CO(3))(3).1.7H(2)O nanoparticles. Dy(OH)(3) nanotubes were synthesized by sonication of Dy(OAC)(3).6H(2)O and N(2)H(4). The as-synthesized nanostructures were characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR). Photoluminescence measurement shows that the nanoparticles have two emission peaks around 17,540 cm(-1) and 20,700 cm(-1), which should come from the electron transition from (4)F(9)(/)(2)-->(6)H(15)(/)(2) levels and (4)F(9)(/)(2)-->(6)H(13)(/)(2) levels, respectively. The effect of calcination temperature and sonication time was investigated on the morphology and particle size of the products. The sizes could be controlled by the feeding rate of the precipitating agent (NaHCO(3) and N(2)H(4)) and slower feeding rate lead to smaller nanoparticles.
Authors:
Masoud Salavati-Niasari; Jaber Javidi; Fatemeh Davar
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-03-01
Journal Detail:
Title:  Ultrasonics sonochemistry     Volume:  17     ISSN:  1873-2828     ISO Abbreviation:  Ultrason Sonochem     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-03     Completed Date:  2010-08-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9433356     Medline TA:  Ultrason Sonochem     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  870-7     Citation Subset:  IM    
Copyright Information:
(c) 2010 Elsevier B.V. All rights reserved.
Affiliation:
Institute of Nano Science and Nano Technology, Department of Inorganic Chemistry, University of Kashan, Kashan, P.O. Box 87317-51167, Islamic Republic of Iran. salavati@kashanu.ac.ir
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MeSH Terms
Descriptor/Qualifier:
Dysprosium / chemistry*,  radiation effects*
Nanoparticles / chemistry*,  radiation effects
Sonication*
Chemical
Reg. No./Substance:
1308-87-8/dysprosium oxide; 7429-91-6/Dysprosium

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