Titanium dioxide (TiO2) due to its high stability, non-toxicity and strong oxidation potential is widely used as photocatalyst . However, because of its wide bandgap ( ̴ 3.2 eV for anatase phase), that mainly restricts its photocatalytic activity to UV light (ʎ < 387nm) . AgNPs can be used to significantly improve TiO2 -based photocatalysis . Like TiO2, ZnO has a wide bandgap ( ̴ 3.37 eV) but it suffers from high electron-hole recombination. AgNPs enhances charge separation and visible light adsorption when combined with ZnO . Owing to SPR effect, AgNPs can absorb visible light (400-700nm) and transfer energy to semiconductor material, improving electron excitation and extending the photolytic activity beyond UV range. This enhances phenol degradation under sunlight .