During the last years perovskite materials have taken the photovoltaic community by storm, bringing promises of solar cells with efficiencies comparable to conventional silicon devices but at a lower price. However perovskite solar cells so far are facing two main obstacles, they are unstable in the presence of air, moisture and heat and they are usually toxic due to being based on lead-halide ...

The characterization of mixed oxides of TiO2/SiO2 and TiO2/Al2O3 prepared by sol-gel methods is described. Application of the TiO2/Al2O3 material for the photocatalytic decomposition of salicylic acid gave improved activity relative to TiO2-only materials. The photocatalytic activity of TiO2/SiO2, TiO2/Al2O3, and TiO2 toward the photocatalytic decomposition of phenol demonstrated the enhancemen...

In this paper, the copper-based nanocomposites with TiO2 nanoparticles were synthesized by self-propagating high-temperature synthesis (SHS) process. The effect of different amounts excess copper, in comparison stoichiometric ratio (CuO:Ti ratios 1:1, 2:1, and 3:1), on phase formation achieved samples was studied. A thermodynamical study showed that increasing copper powder reduces adiabatic te...