Photocatalytic tile for decontaminating environments characterized in that it comprises rubber particles from tires removed at the end of their useful life, resin or thermoset polymeric binder, and nanoparticles of titanium dioxide. (Machine-translation by Google Translate, not legally binding)1. Loseta fotocatalítica para descontaminar ambientes caracterizada porque comprende partículas de caucho procedentes de neumáticos retirados al final de su vida útil, resina o ligante polimérico termoestable, y nanopartículas de dióxido de titanio.