Tailoring the photocatalytic reaction rate of a nanostructured TiO2 matrix using additional gas phase oxygen
M.J. Uddin, M.M. Alam, M.A. Islam, S.R. Snigda, S. Das, M.M. Rahman, M.N. Uddin, C.A. Morris, R.D. Gonzalez, U. Diebold, T.J. Dickens, O.I. Okoli
Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
Department of Chemistry, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
Department of Microbiology and Immunology, Tulane University, New Orleans, LA 70118, USA
Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, LA 70118, USA
Department of Physics, Tulane University, New Orleans, LA 70118, USA and Institut für Angewandte Physik,
Technische Universität Wien, 1040 Wien, Austria
Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering, Tallahassee, FL 32310, U.S.A.
Int. Nano Lett. 3 (2013) 16
Nanostructured TiO2 was synthesized by the sol-gel method.
The titania was supported on nanoporous poly(styrene-co-divinylbenzene) (PS).
The samples were characterized by several techniques
(scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction,
and ultraviolet-visible spectroscopy).
Three types of TiO2 samples were prepared using various temperatures
and were studied for the photocatalytic degradation of methylene blue.
The photocatalytic efficiency of TiO2 was observed to increase
by activating the TiO2 surface using nanoporous PS.
The photocatalytic performance of the synthesized samples
showed a higher performance using molecular O2, which was purged through the reactor.
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Reprints available from U. Diebold (diebold
).