Open AccessMultiple wavelength (365–475 nm) complete actinometric characterization of Corning® Lab Photo Reactor using azobenzene as a highly soluble, cheap and robust chemical actinometer
Author(s) -
Mélanie Roseau,
Laëtitia ChaussetBoissarie,
Sylvain Gremetz,
Philippe M. C. Roth,
Maël Penhoat
Publication year - 2022
Publication title -
photochemical and photobiological sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 101
eISSN - 1474-9092
pISSN - 1474-905X
DOI - 10.1007/s43630-022-00171-w
Subject(s) - actinometer , azobenzene , photoisomerization , quantum yield , spectroscopy , wavelength , isomerization , materials science , photochemistry , chemistry , optics , optoelectronics , analytical chemistry (journal) , physics , organic chemistry , molecule , plasma , quantum mechanics , fluorescence , catalysis
The characterization of commercially available Corning ® Lab Photo Reactor by actinometry at different wavelengths (365, 385, 405 and 475 nm) using azobenzene E ↔ Z photoisomerization is reported. By comparison with photon fluxes determined externally using a radiometer, this method based on NMR spectroscopy is rapid, cheap, robust, reproducible and can applied to UVA-visible range, compared to previously described chemical actinometric protocols. Recalculation of isatin N 2 -phenylhydrazone isomerization quantum yield at 405 nm gave almost the same value as the literature data ([Formula: see text] = 0.0013) and confirmed the robustness and applicability of this methodology.