Yes, photon energy of 185 nm can breakdown some VOCs, we observed the decomposition of MB under UV 200 nm. Unfortunately, I don't know any table showing the detailed bond energies of VOCs.
BR,
Another question is how to separate examine photolysis and ozonation. 185nm emitted from UV lights has sufficient energy to break dowm oxygen gas in air and then to form ozone. So what we observed is based on the synergistic effect. The only way is first to study ozonation by introduction of ozone gas. Then the second step is to explore photolysis+ozonation using UV sources. Any good suggestions?
In addition, you can another test with only UV+reactants. I think that kind of test with be very helpful for you.
Full spectral information on gaseous molecules are available under:
http://satellite.mpic.de/spectral_atlas
We produced several papers on the 185 nm photolysis of several olefins, suvh as cyclohexene, cyclopentene, pentene and methylbutenes. See for example:
Can. J. Chem., 63, 1424-30 (1985); Adv. in Photochem., 14, 135-76 (1988); Rev. Chem. Intermediates, 12, 13-31 (1989)...
I think the eV of 185nm photon (6.7eV) is too low to break C=O bond (749KJ/mol).
follow the link which says that:
http://www.germsys.com/ultraviolet-uv-lamps-in-254-nm-and-185-nm-range/
For a positive answer, at least two conditions must be encontered. First, the molecule must be able to absorb the photon and, secondly, at least one of the internal bonds must have a lower energy than that of the incident photon. See also the case of internal isomerizations. In these cases, the energy of the potential barriers must be less than the phton energy.
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