Optimization of the reaction conditions to obtain benzaldehyde employing V/Ti-PILC

Abstract

Materials with catalytic properties were synthesized from natural clay from Argentina. The use of this material as a support is important due to their low cost because its abundance in nature. Subsequently, the pillared clays with Ti were obtained through the pillaring process, which were modified with different V contents. All the materials showed a significant increase in the basal spacing, the specific surface and the volume of pores with respect to the original clay, which confirmed the presence of pillars that expanded its layers. In addition, the variation of the reaction conditions in the oxidation of benzyl alcohol to benzaldehyde was studied. Thus, the highest yield of benzaldehyde (10.29%) with a selectivity of 95% was achieved with a loading of V in Ti-PILC of 0.5% p/p, with a catalyst concentration of 9 g.L^.-1, using acetonitrile as solvent.