Manipulation and orientation of zeolite L by using a magnetic field

A simple approach for the functionalization of cylindrically shaped zeolite L crystals with iron oxide magnetic nanoparticles is reported. These functionalized zeolites can be aligned very easily by applying a magnetic field in solution, on different substrates, and in a polymeric matrix. The aligned zeolite loaded with fluorescent dyes are anisotropic in both absorption and fluorescence owing to the linear arrangement of the channels and the restricted rotation of the molecules inside the channels. These findings can be applied on polymeric matrices, such as poly[3-3′(vinylcarbazole)].