Table 1 Carbonyl index (CI) and vinyl index (VI) of low-density polyethylene (LDPE) films after 175 h exposure to visible light in the presence of different photocatalysts for monitoring the degree of degradation where higher values suggest better oxidation

From: Visible light photocatalytic degradation of microplastic residues with zinc oxide nanorods

Parameters Control (non-irradiated) LDPE LDPE + ZnO (3 mM_5 h) LDPE + ZnO (10 mM_5 h) LDPE + ZnO (20 mM_5 h)
CI 0.71 1.17 1.38 1.51
VI 0.51 0.9 1.12 1.3
  1. Zinc oxide (ZnO)