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Application of Reverse Micelle Sol–Gel Synthesis for Bulk Doping and Heteroatoms Surface Enrichment in Mo-Doped TiO2 Nanoparticles
- Source :
- Materials, Volume 12, Issue 6, Materials, Vol 12, Iss 6, p 937 (2019)
- Publication Year :
- 2019
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2019.
-
Abstract
- TiO2 nanoparticles containing 0.0, 1.0, 5.0, and 10.0 wt.% Mo were prepared by a reverse micelle template assisted sol&ndash<br />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 &minus<br />196 &deg<br />C, energy dispersive X-ray analysis coupled to field emission scanning electron microscopy, X-ray photoelectron spectroscopy, diffuse reflectance UV&ndash<br />Vis spectroscopy, and &zeta<br />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 :
- TiO2 nanoparticles
Materials science
Analytical chemistry
02 engineering and technology
010402 general chemistry
lcsh:Technology
01 natural sciences
Micelle
chemistry.chemical_compound
Adsorption
X-ray photoelectron spectroscopy
Desorption
Rhodamine B
TiO2
sol-gel
General Materials Science
Photocatalysis
lcsh:Microscopy
Spectroscopy
lcsh:QC120-168.85
Photocatalysis, TiO2, sol-gel, wastewater treatment
lcsh:QH201-278.5
lcsh:T
Mo-doping
band-gap
021001 nanoscience & nanotechnology
0104 chemical sciences
wastewater treatment
chemistry
lcsh:TA1-2040
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
Diffuse reflection
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
lcsh:TK1-9971
Powder diffraction
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....c2d8e2e84b83f253d63d34fe52b5d1d0
- Full Text :
- https://doi.org/10.3390/ma12060937