Modeling of nonylphenol degradation by photo-nanocatalytic process via multivariate approach

The results showed that most influential factors on NP degradation constant are the [NP]0, pH of reaction media, and ZnO loading rate, and the most significant interaction is [NP]-pH. Finally, two mathematical models have been proposed to estimate NP degradation rate constant (k) on the basis of the significant variables and interactions. Predicted results of models showed good agreement with the experimental data (R2 = 0.83 and 0.93).