Current time in Korea 17:12 Oct 22 (Sun) Year 2017 KCS KCS Publications
KCS Publications
My Journal Log In Register
HOME > Search > Browsing(BKCS) > Archives

Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 9
BKCSDE 35(9)
September 20, 2014 

 
Title
Photocatalytic Degradation of Methylene Blue in Presence of Graphene Oxide/TiO2 Nanocomposites
Author
Sung Phil Kim, Hyun Chul Choi*
Keywords
Thiolated graphene oxide, GO-TiO2, Photocatalyst, Methylene blue
Abstract
A simple method of depositing titanium dioxide (TiO2) nanoparticles onto graphene oxide (GO) as a catalytic support was devised for photocatalytic degradation of methylene blue (MB). Thiol groups were utilized as linkers to secure the TiO2 nanoparticles. The resultant GO-supported TiO2 (GO-TiO2) sample was characterized by transmission electron microscopy (TEM), near-edge X-ray absorption fine structure (NEXAFS), and X-ray photoelectron spectroscopy (XPS) measurements, revealing that the anatase TiO2 nanoparticles had effectively anchored to the GO surface. In the photodegradation of MB, GO-TiO2 exhibited remarkably enhanced photocatalytic efficiency compared with thiolated GO and pure TiO2 nanoparticles. Moreover, after five-cycle photodegradation experiment, no obvious deactivation was observed. The overall results showed that thiolated GO provides a good support substrate and, thereby, enhances the photodegradation effectiveness of the composite photocatalyst.
Page
2660 - 2664
Full Text
PDF