Preparation of Efficient TS-1 with Small Particle Size and Enhanced Framework Ti

摘要

abstract_textpCrystal size and framework Ti content are two main factors which influence catalytic performances of TS-1 catalysts. Control over the crystal size and framework Ti of TS-1 through the synthesis of TS-1 in the presence of polyethylene glycol (PEG) is reported. The crystal size of TS-1 sample synthesized in the presence of PEG, TS-1-PEG was 230 nm. However, the size of TS-1 synthesized without PEG, standard sample, was 290 nm. The TS-1-PEG possess higher amount of framework Ti content and less anatase TiO2 in comparison with TS-1. The catalytic reaction tests showed superior activity of TS-1-PEG toward hydroxylation of phenol and oxidation of dibenzothiophene, deep desulfurization of fuels, as a result of cooperative effects of smaller particle size and higher framework Ti content. Consequently, using safe and un-expensive PEG polymer is a powerful approach to synthesize TS-1 with small crystal size and high framework Ti content to make efficient TS-1 catalyst./p/abstract_text