Characterization of N-doped TiO2 nanoparticles supported on SrTiO3 via a sol–gel process

2013 ◽  
Vol 16 (1) ◽  
Author(s):  
Bing-Shun Huang ◽  
Ming-Yen Wey
Keyword(s):  
Tio2 Nanoparticles ◽  
Sol Gel ◽  
Doped Tio2 ◽  
Sol Gel Process

Structural and optical characterization of Ag-doped TiO2 nanoparticles prepared by a sol–gel method

2012 ◽  
Vol 38 (7) ◽  
pp. 1443-1453 ◽  
Author(s):  
Ruby Chauhan ◽  
Ashavani Kumar ◽  
Ram Pal Chaudhary
Keyword(s):  
Tio2 Nanoparticles ◽  
Sol Gel ◽  
Optical Characterization ◽  
Gel Method ◽  
Doped Tio2 ◽  
Sol Gel Method

Synthesis and Characterization of Ag-Decorated TiO2 Nanoparticles for Photocatalytic Application

2021 ◽  
Vol 10 (4) ◽  
pp. 13-18
Author(s):  
K. Balachandran ◽  
G. Vijayakumar ◽  
S. Mageswari ◽  
A. Preethi ◽  
M.S. Viswak Senan
Keyword(s):  
Grain Size ◽  
Tio2 Nanoparticles ◽  
Sol Gel ◽  
Tem Analysis ◽  
Photocatalytic Application ◽  
Visible Spectra ◽  
Sol Gel Process ◽  
Titanium Tetra Isopropoxide ◽  
Ft Ir

TiO2 nanoparticles (TiO2) and Ag-doped TiO2 nanocomposites (Ag-TiO2) were synthesized by the Sol-Gel process using titanium tetra isopropoxide as TiO2 and AgNO3 as Ag precursors, respectively. The synthesized nanocomposites were characterized by XRD, SEM, TEM, FT-IR, and UV­-Visible analysis. The XRD results show that Ag doping increases the grain size from 22 nm to 36 nm. From the UV-Visible spectra, the redshift in absorbance was observed, which indicates the increase in grain size and it reduces the bandgap. The TEM analysis shows that all the particles are exhibited in the nanometer range. The synthesized nanoparticles show good photocatalytic activity, and they decompose the methyl orange dye within 5 hours.

Preparation and characterization of doped TiO2 nanofibers by coaxial electrospining combined with sol–gel process

2014 ◽  
Vol 586 ◽  
pp. 274-278 ◽  
Author(s):  
Haixia Tong ◽  
Xican Tao ◽  
Daoxin Wu ◽  
Xiongfei Zhang ◽  
Dan Li ◽  
...  
Keyword(s):  
Sol Gel ◽  
Tio2 Nanofibers ◽  
Doped Tio2 ◽  
Sol Gel Process

scholarly journals Characterization of Photoactive Fe-TiO2 Lime Coatings for Building Protection: The Role of Iron Content

Materials ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 1847 ◽  
Author(s):  
Chrysi Kapridaki ◽  
Nikolaos Xynidis ◽  
Eleftheria Vazgiouraki ◽  
Nikolaos Kallithrakas-Kontos ◽  
Pagona Maravelaki-Kalaitzaki
Keyword(s):  
Tio2 Nanoparticles ◽  
Photoelectron Spectroscopy ◽  
Sol Gel ◽  
Nitrogen Adsorption ◽  
Visible Radiation ◽  
Edge Structure ◽  
Doped Tio2 ◽  
X Ray ◽  
Vis Spectroscopy

Iron-doped TiO2 nanoparticles, ranging in Fe concentrations from 0.05 up to 1.00% w/w, were synthesized through a simple sol-gel method. Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), Ultraviolet-Visible (UV-Vis) spectroscopy, nitrogen adsorption−desorption isotherms, X-ray photoelectron spectroscopy (XPS), and X-ray absorption near-edge structure spectroscopy (XANES) were used to characterize the synthesized nanoparticles. The characterization of the Fe-doped TiO2 nanoparticles revealed the predominant presence of anatase crystalline form, as well as the incorporation of the Fe3+ ions into the crystal lattice of TiO2. The photocatalytic assessment of the Fe-doped TiO2 nanoparticles indicated that the low iron doping titania (0.05 and 0.10% w/w) have a positive effect on the photocatalytic degradation of Methyl Orange under visible radiation. Moreover, FTIR monitoring of calcium hydroxide pastes enriched with low Fe-doped TiO2 revealed enhancement of carbonation at both early and later stages. Improved photocatalytic performance and increased lime carbonation, observed in lime coatings with low Fe-doped TiO2 admixtures, established them as invaluable contributors to the protection of the built environment.

Fabrication and characterization of Ru-doped TiO2 composite membranes by the sol-gel process

1997 ◽  
Vol 33 (1-2) ◽  
pp. 101-105 ◽  
Author(s):  
Dong-Sik Bae ◽  
Kyong-Sop Han ◽  
Sang-Hael Choi
Keyword(s):  
Sol Gel ◽  
Composite Membranes ◽  
Doped Tio2 ◽  
Sol Gel Process ◽  
Fabrication And Characterization
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