The photo-activity to visible light (indoor white light source) was assessed by monitoring the degradation of a stearic acid over-layer.
This allowed for the systematic investigation on the effect of N-doped systems.
This video lesson does just that as Dianne shows how gradating through edges can be used, along with closely related values and intensities, to create fog and mist.
Film thicknesses and bandgap energies were calculated from Swanepoel and Tauc plot manipulations of transmittance spectra.
The photocatalytic activity to UVA (365 nm = 1.75 m W cm) light was assessed by monitoring colour changes in digital images of an even layer of intelligent ink deposited by an aerosol-spray method and by UV–visible spectroscopic assessment of the degradation of an aqueous methylene blue dye.