NTP and UV Coupled ExperimentThe results, when NTP and UV are used simultaneously, are presented on Table 2. When glass fibers alone are exposed to both NTP and UV, ethanol conversion and products selectivities are similar to those obtained under NTP alone showing that the addition of UV to NTP does not affect the system GF-NTP since glass fibers are not a photocatalyst. However, the presence of UV seems to inhibit the ozone formation observed under NTP without UV or to favor its elimination.