Highly ordered mesoporous SBA-15 silica material was synthesized under hydrothermal conditions using P123 as template and tetraethyl orthosilicate as silica source. Tin nanoparticles were deposited on the pore surfaces of Si-SBA-15 support post synthetically using SnCl4 as tin source. Tin containing SBA-15 catalysts were also prepared by direct synthesis using SnCl4 and SBA-15 precursors under hydrothermal conditions. These Sn-SBA-15 catalysts were further modified by adding trifluromethane sulfonic acid (F3CH-SO3H). These Sn-SBA-15-OTf catalysts were characterized by low angle XRD and N2...