Synthesis and characterization of Fe3+ doped titanium dioxide nanopowders
Source abstract
Abstract
Abstract Titanium dioxide nanopowders, doped with different amounts of Fe 3+ ions (0.3–5 mass%), were synthesized by acid-catalyzed sol–gel method in a non-aqueous medium. The obtained powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy and determination of izoelectric points as well as particle diameters. Careful investigation of porous structure was provided by application of nitrogen adsorption–desorption method. Structure analysis showed that the obtained nanopowders exhibited the anatase crystal structure, independent of the amount of iron dopants. The presence of Fe 3+ ions in anatase decreases the value of isoelectric point of undoped TiO 2 . Unlike crystal structure, porosity parameters are strongly affected by the amount of iron ions incorporated in TiO 2 lattice. The mesoporosity of TiO 2 can be successfully controlled by changing the amount of iron dopants.
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Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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