Chemical Engineering Journal, volume 214, pages 364-375

Sol–gel synthesis, characterisation and photocatalytic activity of pure, W-, Ag- and W/Ag co-doped TiO2 nanopowders

Manfredi Saeli 1, 2, 3, 4
R.C. Pullar 1, 2, 3, 4
A. F. Gualtieri 5
Maria Paula Seabra 1, 2, 3, 4
J. A. Labrincha 1, 2, 3, 4
1
 
CICECO
2
 
University of Aveiro
3
 
Campus Universitário de Santiago 3810-193 Aveiro Portugal
4
 
Department of Materials and Ceramic Engineering
Publication typeJournal Article
Publication date2013-01-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor15.1
ISSN13858947, 03009467
General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering
Environmental Chemistry
Abstract
Tungsten, silver and tungsten/silver co-doped titania nanopowders were synthesised via an aqueous sol–gel method. The size distribution and zeta potential of the starting sols were determined via photon correlation spectroscopy (PCS). The dried gels were thermally treated at two different temperatures, and the occurrence of amorphous phase was assessed using the combined Rietveld–RIR X-ray powder diffraction method. A systematic study of the optical properties of the powders was made with diffuse reflectance spectroscopy (DRS), and the energy band gaps were calculated using the differential reflectance method; while their morphology was investigated using electron microscopy analysis (TEM). The photocatalytic activity of the samples was assessed in liquid–solid phase, under UVA-light and visible-light irradiation, monitoring the degradation of an organic dye. The influence of the phase composition, optical properties, dimensions, and specific surface area of the powders on the photocatalytic activity was thoroughly discussed.

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Saeli M. et al. Sol–gel synthesis, characterisation and photocatalytic activity of pure, W-, Ag- and W/Ag co-doped TiO2 nanopowders // Chemical Engineering Journal. 2013. Vol. 214. pp. 364-375.
GOST all authors (up to 50) Copy
Saeli M., Pullar R., Gualtieri A. F., Seabra M. P., Labrincha J. A. Sol–gel synthesis, characterisation and photocatalytic activity of pure, W-, Ag- and W/Ag co-doped TiO2 nanopowders // Chemical Engineering Journal. 2013. Vol. 214. pp. 364-375.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.cej.2012.11.018
UR - https://doi.org/10.1016/j.cej.2012.11.018
TI - Sol–gel synthesis, characterisation and photocatalytic activity of pure, W-, Ag- and W/Ag co-doped TiO2 nanopowders
T2 - Chemical Engineering Journal
AU - Saeli, Manfredi
AU - Pullar, R.C.
AU - Gualtieri, A. F.
AU - Seabra, Maria Paula
AU - Labrincha, J. A.
PY - 2013
DA - 2013/01/01 00:00:00
PB - Elsevier
SP - 364-375
VL - 214
SN - 1385-8947
SN - 0300-9467
ER -
BibTex
Cite this
BibTex Copy
@article{2013_Saeli,
author = {Manfredi Saeli and R.C. Pullar and A. F. Gualtieri and Maria Paula Seabra and J. A. Labrincha},
title = {Sol–gel synthesis, characterisation and photocatalytic activity of pure, W-, Ag- and W/Ag co-doped TiO2 nanopowders},
journal = {Chemical Engineering Journal},
year = {2013},
volume = {214},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/j.cej.2012.11.018},
pages = {364--375},
doi = {10.1016/j.cej.2012.11.018}
}
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