there was no signal from the surface of TiO2/SnO2 for propanol, butanone and acetaldehyde, while for others the luminescent intermediate was produced and the pho- tomultiplier was sensitive enough to detect especially for benzene and toluene.
there was no signal from the surface ofTiO2/SnO2 for propanol, butanone and acetaldehyde, while forothers the luminescent intermediate was produced and the pho-tomultiplier was sensitive enough to detect especially for benzeneand toluene.