TiO2∙rGO nanocomposite as a photo catalyst for the reduction of Cr6+
- Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900 (Thailand)
- Computational Applied Science for Smart Innovation Cluster (CLASSIC), Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok 10149 (Thailand)
Highlights: • Titania decorated reduced graphene oxide was fabricated by hydrothermal process. • TiO{sub 2} nanoparticles attached to the surfaces of the rGO are anatase. • rGO surfaces were covered with TiO{sub 2} nanoparticles whose average sizes. • Photocatalytic reduction of toxic Cr{sup 6+} is increased as x is increased. - Abstract: Titania decorated reduced graphene oxide (TiO{sub 2}∙x%rGO (x = 0, 1, 05, 10, 15, 20 and 25) nanocomposites (NC’s) were fabricated using a hydrothermal process. Scanning electron microscope (SEM) images show that the rGO surfaces were covered with TiO{sub 2} nanoparticles whose average sizes increased as x is increased. X Ray Diffraction (XRD) of all the NP’s exhibits the diffractions peaks of the anatase phase of the TiO{sub 2}. The Fourier-Transform Infrared (FT-IR) spectra of these NC’s indicate an increase in the Ti-O-C interfacial chemical bond vibration signals as x increases. A decrease in the energy of the band (energy) gap as the amount of rGO is increased is determined from the UV–vis light absorption spectra. The use of these TiO{sub 2}∙x%rGO NC’s to reduce toxic Cr{sup 6+} ions to nontoxic Cr{sup 3+} ions is studied. The photo-catalytic reduction of the toxic Cr{sup 6+} is seen in general to increase as x is increased.
- OSTI ID:
- 22805274
- Journal Information:
- Materials Research Bulletin, Vol. 107; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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