Prediction of g-C₃N₄-based photocatalysts in tetracycline degradation based on machine learning

Investigating the effects of g-C₃N₄-based photocatalysts on experimental parameters during tetracycline (TC) degradation can be helpful in discovering the optimal parameter combinations to improve the degradation efficiencies in general. Machine learning methods can avoid the problems of high cost, time-consuming and possible instrumental errors in experimental methods, which have been proven to be an effective alternative for evaluating the entire experimental process. Eight typical machine learning models were explored for their effectiveness in predicting the TC degradation efficiencies of g-C₃N₄ based photocatalysts. XGBoost (XGB) was the most reliable model with R², RMSE and MAE values of 0.985, 4.167 and 2.900, respectively. In addition, XGB's feature importance and SHAP method were used to rank the importance of features to provide interpretability to the results. This study provided a new idea for developing g-C₃N₄-based photocatalysts for TC degradation and intelligent algorithms for predicting the photocatalytic activity of g-C₃N₄-based photocatalysts.