Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 7, Issue 4-5, Pages 489-498Publisher
SPRINGER
DOI: 10.1007/s11051-005-7529-z
Keywords
iron(III)-doped titania; photocatalysis; sol-gel; sulforhodamine-B; titania; visible light; nanotechnology; water quality
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Iron(III)-doped titania nanoparticles were prepared by modified sol-gel method using titanium (IV) butoxide and inorganic precursor iron(III) nitrate nonahydrate. Spectroscopic measurements show the onset of the band-gap transition to be red-shifted (similar to lambda = 475 nm) to the visible region with increasing iron(III) ion content. Characterizations were preformed by X-ray diffractometry, electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. Photocatalysis experiments were performed with dye pollutant sulforhodamine-B in aqueous environment. Direct photocatalytic effect was observed in the dye degradation experiments when irradiated with visible light into the band gap of the iron(III)-doped titania.
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