Hydrothermal synthesis of titanosilicate type zeolitic layered PLS-1 and CDS-1 molecular sieve with CDO topology

The titanosilicate type CDS-1 zeolite ([Ti]CDS-1) with CDO topology can be prepared from the corresponding zeolitic layered titanosilicate [Ti]PLS-1 via dehydrative condensation of interlayers’ Q 3 silanols. The precursor [Ti]PLS-1 is successfully synthesized from the mixture of an acidified kanemite, titanium tetraisopropoxide (Ti(O i Pr) 4 ), a small amount of hydrogen peroxide (H 2 O 2 ), tetramethylammonium hydroxide (TMAOH) and water (H 2 O) under hydrothermal synthesis. The obtained samples were characterized by powder-XRD, TG–DTA, N 2 adsorption, solid state NMR and UV–Vis analyses. Further oxidation reaction of terminal alkenes was examined by using H 2 O 2 as an oxidant.