Radiative analysis of luminescence in photoreactive systems: Application to photosensitizers for solar fuel production
Fig 5
(a) Photocatalytic system radiative properties—left: Eosin Y (24 μM) UV-visible molar extinction cross-section Eλ, fluorescence emission spectrum pL(λ) and quantum yield Φ = 0.35 in a mixture of triethylamine (10% vol.) in water at pH 10.5 [18, 21]; right: Catalyst (1.66 mM) molar absorption cross section in methanol. UV-visible spectra were obtain using a Shimadzu UV-visible UV-160 A spectrophotometer and emission spectra from a Shimadzu RF-1501 spectrofluorimeter [18]—(b) Example of experimental pressure time course presenting transient and linear regimes with the slope in the linear regime—(c) wavelength probability density function incident source i.e. LED panel emission spectrum pi(λ)—(d) photograph of the photoreactor containing the fluorescent photocatalytic system illuminated by the blue LED panel—(e) Example of the wavelength probability density function spectrum pr(λ) of photons measured at the rear of the reactor composed of transmitted LED panel photons and fluorescent photons.