Modern, highly efficient catalysts are made of materials that usually have high surface areas with nanometric sized particles, normally below 100 nm  and . Recent in-depth analyses have shown that the size, shape, and porosity of the particles are the key morphological parameters that can influence their photoactivity. Therefore, a decrease in the particle size of a uniformly dispersed active phase on a highly-ordered porous support material would provide a high surface area photocatalyst and this would generally have a beneficial effect on photoactivity  and . Therefore, particular attention has been paid in this study to obtaining nanosized TiO2 dispersed on 3D ordered porous KIT-6 GSK2636771 material, in order to enhance CO2 conversion to fuel and other useful energy-bearing products. The physical characteristics of these synthesized photocatalysts have been obtained by means of N2-sorption, and are summarized in Table 1. KIT-6 has a high surface area (SBET), pore volume (PV), and confined 3D average pore diameter (APD), which are shown in Table 1. As the TiO2 loading was increased, a gradual decrease was observed in the SBET and PV of the KIT-6 support material. This decrease was due to partial surface coverage and blockage by the dispersed TiO2. However, because of the 3D pore structure of KIT-6, a uniform APD was observed in all the catalysts (calcined at 400 °C for 3 h), which did not change significantly. The 3D pore structure was able to accommodate dispersed TiO2 and facilitate an easier and faster diffusion of the reactants and products . Therefore, the TiO2 loadings on KIT-6 were uniform up to 20–30%, while loadings above this decreased the physical characteristics significantly. Different temperature calcination treatments of TiO2(20%)/KIT-6 (ranging 400–800 °C) also showed a decrease in SBET and PV, which might have been caused by the rapid growth of TiO2 due to sintering, and in particular inside the KIT-6 pores.