38 0

Synthesis of CeO2 nanorods with improved photocatalytic activity: comparison between precipitation and hydrothermal process

Title
Synthesis of CeO2 nanorods with improved photocatalytic activity: comparison between precipitation and hydrothermal process
Author
김태환
Keywords
DOPED CERIA; NANOCRYSTALS; SURFACE; NANOTUBES; GROWTH
Issue Date
2013-05
Publisher
Springer
Citation
Materials in Electronics, May 2013, 24(5), P.1644-1650
Abstract
The main purpose of this article is to examine the surface free cerium oxide (CeO2) nanostructures prepared by different methods. CeO2 nanoparticles and nanorods were prepared by two different methods including precipitation and hydrothermal process. In precipitation process the nanoparticles were prepared at room temperature, while in hydrothermal process nanorods were prepared at high temperature. X-ray and electron diffraction analysis show the presence of CeO2. X-ray photoelectron spectroscopy (XPS) confirms the presence of CeO2 in both nanostructures. From BET, the specific surface area of nanorods (110 m(2)g(-1)) is found to be higher than nanoparticles (52 m(2)g(-1)). Also, the effect of morphology on their photodegradation of azo dye acid orange 7 (AO7) under UV-Visible light has been successfully investigated. The results show that the CeO2 nanorods synthesized by hydrothermal method have high surface area and exhibit improved performance in the photocatalytic activity.
URI
http://link.springer.com/article/10.1007%2Fs10854-012-0989-xhttp://hdl.handle.net/20.500.11754/45810
ISSN
0957-4522
DOI
10.1007/s10854-012-0989-x
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE