Investigation of Structural, Optical and Photocatalytic Properties of Holmium-Niobium Co-doped TiO2 Nanopowders |
| Y. Karaduman, A. Demir, T. Öztürk, B. Gül
Selcuk University, Faculty of Science, Department of Physics, 42130 Konya, Turkey |
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| In this presented work, pure and holmium, niobium, and holmium-niobium co-doped titanium dioxide nanopowders were synthesized by the sol-gel method. Their morphological, structural, optical, and photocatalytic properties were analyzed by scanning electron microscopy, X-ray diffraction, and UV-visible spectrophotometer. The photocatalytic activities of the synthesized nanopowders were examined using ultraviolet light. The results have shown that doping both with a single (holmium, niobium) or two types of elements (holmium-niobium) have significantly changed the properties of titanium dioxide. It was concluded that, compared with others, the holmium-niobium co-doped sample has the smallest crystal size. Other values, such as forbidden band gap and kinetic constants, are in the range of the data obtained for single-element doping. |
DOI:10.12693/APhysPolA.143.75 topics: photocatalysis, co-doped TiO2, lanthanides, nanopowders |