Skip to main content
. 2025 Nov 21;19(1):321. doi: 10.1186/s13065-025-01686-w

Table 2.

Kinetic parameters for the photocatalytic degradation of methylene blue dyes, comparing zero-order, first-order, and second-order models to determine the most suitable reaction mechanism

Zero-order First-order Second-order
Catalyst dose (mg/L) %Removal m0 (µmol/L.min) R2 m1 (min− 1) R2 m2 (L µmol min− 1) R2
MB = 200 87.50 0.0053 0.86 0.0050 0.97 0.05807 0.80