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- Title
Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO2 Nanoparticles.
- Authors
Nasi, Roberto; Esposito, Serena; Freyria, Francesca S.; Armandi, Marco; Gadhi, Tanveer A.; Hernandez, Simelys; Rivolo, Paola; Ditaranto, Nicoletta; Bonelli, Barbara
- Abstract
TiO2 nanoparticles containing 0.0, 1.0, 5.0, and 10.0 wt.% Mo were prepared by a reverse micelle template assisted sol–gel method allowing the dispersion of Mo atoms in the TiO2 matrix. Their textural and surface properties were characterized by means of X-ray powder diffraction, micro-Raman spectroscopy, N2 adsorption/desorption isotherms at −196 °C, energy dispersive X-ray analysis coupled to field emission scanning electron microscopy, X-ray photoelectron spectroscopy, diffuse reflectance UV–Vis spectroscopy, and ζ-potential measurement. The photocatalytic degradation of Rhodamine B (under visible light and low irradiance) in water was used as a test reaction as well. The ensemble of the obtained experimental results was analyzed in order to discover the actual state of Mo in the final materials, showing the occurrence of both bulk doping and Mo surface species, with progressive segregation of MoOx species occurring only at a higher Mo content.
- Subjects
SOL-gel processes; TITANIUM dioxide nanoparticles; MICELLES; RHODAMINE B; DOPING agents (Chemistry)
- Publication
Materials (1996-1944), 2019, Vol 12, Issue 6, p937
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma12060937