Figure 5
Pure mellitic acid half-life degradation values \(({\text{sol}})\) according to Patel et al.5 UV flux for the bands mainly assigned to the COOH carboxyl group. Legend: \(\nu\) stretching vibrations; \({\delta }_{p}\) in-plane bending vibrations; \({\delta }_{op}\) out-of-plane bending vibrations.
