Ionic liquid mediated synthesis of graphene-TiO2 hybrid and its photocatalytic activity

Title
Ionic liquid mediated synthesis of graphene-TiO2 hybrid and its photocatalytic activity
Author(s)
웬방호아심재진
Keywords
SENSITIZED SOLAR-CELLS; COMPOSITE-MATERIALS; TIO2 NANOCRYSTALS; CARBON NANOTUBES; NANOCOMPOSITES; FILMS; NANOPARTICLES; TRANSPARENT; EXFOLIATION; DEGRADATION
Issue Date
201402
Publisher
ELSEVIER SCIENCE BV
Citation
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v.180, pp.38 - 45
Abstract
A graphene-TiO2 hybrid was synthesized by a solvothermal microwave-assisted method in a mixture of two green solvents: water and an ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate, [bmim][BF4]). Graphene oxide (GO) could be easily reduced under microwave irradiation without any additional reducing reagent. Titanium (IV) isopropoxide was used as a starting material for the growth of TiO2 nanoparticles on the graphene sheets accompanied by the reduction of GO. The structure and morphology of the as-prepared hybrid were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and thermogravimetric analysis. The graphene-TiO2 hybrid had a high surface area and exhibited high photocatalytic degradation of methylene blue. (C) 2013 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/33214http://dx.doi.org/10.1016/j.mseb.2013.10.011
ISSN
0921-5107
Appears in Collections:
공과대학 > 화학공학부 > Articles
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