Have you recommended any apocalyptic books with purifying female leads?

There is! I recommend "The Great Purification Era". The female protagonist of this novel, Lin Nan, has the superpower of purifying the dark aura. She can purify plants, water sources, soil, and even animals, becoming the hope of restoring human life. This is a sci-fi novel about a futuristic world. It also has business and farming elements. The plot is very interesting. I hope you like my recommendation. Muah~