Across the world's rivers and waterways, the textile industry has long left an invisible signature: synthetic dyes that resist nature's own capacity to heal. Researchers have now answered this slow-moving crisis with a catalyst forged from titanium dioxide, silver, and nitrogen — guided not by intuition alone, but by artificial intelligence — capable of dismantling one of the most persistent industrial dyes in just over half an hour under ordinary visible light. The work, emerging in August 2026, represents a convergence of materials science and machine learning in service of an old and urgent