VS-1 composite membrane: preparation and characterization.

This paper reports the in situ hydrothermal synthesis of a vanadium- containing Silicalite-1 zeolite film on a tubular alumina support. In this process, metal-MFI zeolite forms at the surface and within the pores of a porous ceramic alumina support by nucleation and crystallization from a fluoride mixture containing vanadium and silica species. The structure and texture of the prepared composite was confirmed by XRD, DSC and EPR studies.