Tuning SnO2-TiO2 tandem systems for dyes mineralization

- Well defined crystalline structures were observed in high efficient photocatalyst.
- Porous morphology and higher roughness were obtained in multilayer photocatalyst.
- Different nucleation, growth and densification rates, resulting in different and tunable morphologies.
- Carbon removal up to 90% in mineralization processes.
- The photocatalytic efficiency was above 90%.