Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO-TiO Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye.

Indigo Blue (IB) is a dye widely used by the textile sector for dyeing cellulose cotton fibers and jeans, being considered a recalcitrant substance, and therefore resistant to traditional treatments. Several methodologies are reported in the literature for the removal or degradation of dyes from the aqueous medium, among which photoelectrocatalysis stands out, which presents promising results in the degradation of dyes when a dimensionally stable anode (DSA) is used as a photoanode. In the present work, we sought to investigate the efficiency of a Ti/RuO-TiO DSA modified with tin and tantalum for the degradation of Indigo Blue dye by photoelectrocatalysis.