Figures S3 and S4 from the supplementary information of the article "Photocatalytic polyurethane TiO2 membranes enriched with doped-TiO2 for the simultaneous process of hydrogen production and acid black 1 degradation"

Figures S3 and S4 from the supplementary information of the article "Photocatalytic polyurethane TiO2 membranes enriched with doped-TiO2 for the simultaneous process of hydrogen production and acid black 1 degradation"Figure S3: Optoelectronic properties of near transparent doped-titania solsFigure S4. EIS of doped-TiO2 binaries and ternaries, obtained from the thin film formed on the surface of M-TiO2, (a) Bode and (b) phase angle. Systems doped-TiO2/AB1/NaOH