Paper Title:
Role of the Hydrothermal Synthesis Conditions on the Structure and Morphology of Co-Doped Y2O3:Er3+-Yb3+ Nanostructured Materials
  Abstract

This work is devoted to the structural and morphological study of co-doped Y2O3:Yb3+-Er3+ nanophosphors, with 1 mol% of Er2O3 and 2 mol% of Yb2O3, synthesized by hydrothermal precipitation method via cetyltrimethylammonium bromide (CTAB) surfactant complex for different ethanol/water solvent ratios ranging from 1:1 to 1:10. Structural characterization results showed the prevalence of cubic phase independent of the solvent ratio although particle size does depend on the solvent ratio. Concerning to morphology, microscopic characterization indicates that the content of water used in synthesis is determinant in the morphology of resulting samples: a high content of water favored the formation of nanorods/nanofibers while a low water content give rise to heterogeneous morphology with irregular particles. Also, solvent ratio determines the consistency of nanostructured materials; an intermediate solvent ratio leads to nanofibers while a high solvent ratio let to obtain nanorods with length/diameter ratio ~3-5. These results show that solvent concentration plays an important role in particle size and morphology of nanostructured materials while the annealing temperature determines the phase composition and crystallite size.

  Info
Periodical
Edited by
Guest Editors: Velumani S., R. Asomoza and Umapada Pal
Pages
109-116
DOI
10.4028/www.scientific.net/JNanoR.9.109
Citation
A. Martinez, J. Morales, P. Salas, C. Ángeles-Chávez, L.A. Diaz-Torres, E. De la Rosa Cruz, "Role of the Hydrothermal Synthesis Conditions on the Structure and Morphology of Co-Doped Y2O3:Er3+-Yb3+ Nanostructured Materials ", Journal of Nano Research, Vol. 9, pp. 109-116, 2010
Online since
February 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Fei Li, Xiao Ping Zou, Jin Cheng, Hong Dan Zhang, Peng Fei Ren, Guang Zhu, Mao Fa Wang
Abstract:Catalytic grown carbon nanofibers have been obtained from decomposition of ethanol over copper plate. Ferric chloride of different...
809
Authors: Xu Sheng Du, Cui Feng Zhou, Zong Wen Liu, Simon P. Ringer, Yiu Wing Mai
Abstract:A novel solid state and surfactant-free method has been developed for synthesis of polyaniline superstructure composed of dendritic...
638
Authors: Yi Su, Xiao Ping Zou, Jin Cheng, Guang Zhu, Mao Fa Wang
Abstract:. Carbon nanofibers have been attracted many attentions for their potential applications in nanocomposites and electromagnetic wave-absorbing...
416
Authors: Yuan Liao, Shu Hua Qi, Dong Hong Wang, You Ming Wu
Abstract:In this paper Polyglycol (PG) was used as ‘soft’ template to induce the polymerization of aniline in aqueous ethanol and hence control both...
309
Authors: Ning Wu, Ya Nan Jiao, Zhi Qing Yuan, Yun Xing Liang, Li Chen
Chapter 1: Textile Science and Technology
Abstract:The Fe3+,La3+ co-doped polyvinyl acetate(PVAc)/titanium dioxide(TiO2) composite nanofibers were firstly prepared by combining sol-gel method...
14