Research Article
SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye
Figure 4
NO and NO2 concentration during the test according to ISO 22197:1 2007 for (a) 10TEOS-5TiO2 and (b) 15TEOS-5TiO2 samples.
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| (b) |