An Investigation on Synthesis of Titania Photocatalyst Based on Silica Mesoporous and Effective Parameters on its Performance

In recent decades, many strategies have been used to increase photocatalytic activity and adsorption of Titania as one of the most applicable photocatalysts. One of the most useful method is distribution and adding of these nanoparticles on nano porous adsorbents. One of the most important advantages of this method is the concentration growth of pollutant around Titanium, adsorbing the produced intermediates and ability of easily recycling of nanophotocatalyst. Nowadays among all of mesoporous materials, mesoporous silica has attracted many attentions because of their unique properties like uniform porosity, high surface area, good thermal stability, suitable applicability, appropriate compatibility and etc. In this study three common methods of increasing surface area of titania with mesoporous silica was investigated. These methods include sol-gel, impregnation and hydrothermal. Besides, reaction temperature, calcination temperature, percentage and source of titania were explored as affective parameters of enhancement of titania surface area.