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Author Jyothi, M. S. ♦ D.’Souza Laveena, P. ♦ Shwetharani, R. ♦ Balakrishna, Geetha R.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ANODES ♦ BINDING ENERGY ♦ BROMIDES ♦ CHARGE CARRIERS ♦ CRYSTALS ♦ DOPED MATERIALS ♦ ELECTRONIC STRUCTURE ♦ ENERGY GAP ♦ FILL FACTORS ♦ FLUORINE ♦ HYDROTHERMAL SYNTHESIS ♦ MORPHOLOGY ♦ NANOSTRUCTURES ♦ NITROGEN ♦ PHOTOCATALYSIS ♦ RECOMBINATION ♦ SOLAR CELLS ♦ TITANIUM OXIDES ♦ VISIBLE RADIATION ♦ WATER TREATMENT
Abstract Highlights: • Novel method to synthesize N, F doped TiO{sub 2} via hydrothermal method is discussed. • Change in bandgap of TiO{sub 2} upon doping makes a photocatalyst visible active. • 94% of degradation of EtBr was achieved within a less time of 90 min. • The doped titania also showed good efficiency as photo anodic material for solar cell. - Abstract: A novel and an efficient hydrothermal method for the preparation of an effective doped titania photocatalyst is reported. The crystal phase, binding energy, elemental composition, morphology, optical and electronic structure analyses were done by various techniques. The doped titania proved as an efficient electrode material and photocatalyst for solar cells and water treatment respectively. The photocatalyst is able to degrade the most potent mutagen ethidium bromide under sunlight with an enhancement of 1.6 times over its undoped analogue. As photo-anode material, showed an improved open circuit potential and fill factor. The created electron states in the doped sample act as charge carrier traps suppressing recombination which later detraps the same to the surface of the catalyst causing enhanced interfacial charge transfer. Surface acidity caused by F induction and lowered band gap energy that can respond to visible light facilitates improved energy harvesting and energy transfer leading to better photo activity.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-02-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 74


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