In this rapidly changing world, environmental deterioration has reached a level that cannot be ignored. Photocatalysis technology, as a revolutionary solution, holds promising prospects for application in the field of environmental remediation. This study delves into the latest advancements of photocatalysis technology in air purification, water purification, and soil remediation, with a focus on the preparation, modification techniques of various photocatalysts such as titanium dioxide (TiO2), ZnO, and their heroic performance in combating pollution. We reveal how photocatalysis technology effectively converts pollutants into harmless substances, showcasing its amazing potential and challenges, and make exciting predictions for future research directions. Through this study, we hope to contribute to the continuous improvement of the environment and draw a more beautiful blueprint for the earths tomorrow.