View : 20 Download: 0

Soft-Chemical Synthesis of Nanometer-Thick Carbon-Coated Titania: Effect of Carbon-Coating on the Photocatalytic Activity of TiO2

Title
Soft-Chemical Synthesis of Nanometer-Thick Carbon-Coated Titania: Effect of Carbon-Coating on the Photocatalytic Activity of TiO2
Authors
Han, Ah ReumHwang, Seong-Ju
Ewha Authors
황성주한아름
SCOPUS Author ID
황성주scopus; 한아름scopusscopus
Issue Date
2008
Journal Title
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
ISSN
1533-4880JCR Link
Citation
vol. 8, no. 10, pp. 5494 - 5498
Keywords
Carbon-CoatingNanometer-Thick Carbon LayersTitanium OxidePhotocatalytic ActivityLow Temperature Dehydration
Publisher
AMER SCIENTIFIC PUBLISHERS
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
Nanometer-thick carbon layer can be successfully coated on titanium oxide via a novel soft-chemical route involving a dehydration process of adsorbed carbohydrate molecules assisted by sulfuric acid. According to powder X-ray diffraction and Ti K-edge X-ray absorption spectroscopic analysis, carbon-coating leads to no significant modification in the anatase-type atomic arrangement of titanium oxide. Transmission electron microscopy, elemental CHNS analysis, and micro-Raman spectroscopy clearly demonstrated that disordered graphitic carbon layer is uniformly coated on the surface of titanium oxide. Of special importance is that the carbon-coating can improve an ability of titanium oxide to remove organic pollutant. On the basis of the experimental findings, we are able to conclude that the present low temperature dehydration method provides a less energy-consuming route not only to the carbon-coating of titanium oxide but also to the improvement of the photocatalytic activity of semiconducting metal oxide.
DOI
10.1166/jnn.2008.1184
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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