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International Journal of Photoenergy
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International Journal of Photoenergy
/
2020
/
Article
/
Fig 1
/
Research Article
SiO
2
-TiO
2
Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO
x
Gas and Methyl Orange Dye
Figure 1
Photographs of (a) ignimbrite, (b) 10TEOS-5TiO
2
, and (c) 15TEOS-5TiO
2
samples.
(a)
(b)
(c)