Research Article

Photocatalytic Degradation of Methyl Green Dye Mediated by Pure and Mn-Doped Zinc Oxide Nanoparticles under Solar Light Irradiation

Table 2

Comparison of photocatalytic performance of synthesized photocatalysts with literature.

Light source (time)Pollutant dye (concentration)PhotocatalystCatalyst amountRate constant ()Degradation efficiencyRef.

UV (60 min)Malachite green (15 ppm)Ni-doped ZnO
(6 wt. %)
0.1 g/L0.0042 min-176%[92]
UV (120 min)Methyl green (40 ppm)Nickel-dimethylglyoxime/ZSM-5 zeolite0.6 g/L0.036 min-176.5%[93]
Visible (50 min)Methyl greenCu-doped ZnO (5 wt. %)0.04 min-175%[94]
UV (50 min)Methyl greenTb-doped ZnO (1 wt. %)0.022 min-177%[95]
UV (120 min)Methylene blue (10 ppm)Mn-doped ZnO (2 wt. %)0.3 g/L0.03 min-199%[82]
Natural sunlight (240 min)Congo red (100 ppm)Mn-doped ZnO (7 wt. %)1 g/L0.0089 min−187%[24]
Natural sunlight (60 min)Methyl green (20 ppm)Pure ZnO0.1 g/L0.01792 min-162.78%Present study
Natural sunlight (60 min)Methyl green (20 ppm)Mn-doped ZnO (2 wt. %)0.1 g/L0.02072 min-166.44%Present study