Synthesis and Properties of Nb-containing Mesoporous Materials with Bimodal Pores Using TEOS and Layered Perovskite K2NbO3F

We synthesized Si-Nb-mesoporous materials using TEOS, layered perovskite K 2 NbO 3 F, and HDTMACl as starting materials. TEM-EDX and IR spectra measurements indicated that niobium was introduced in the silica framework, forming Si-O-Nb bond. Mesopores due to the templating effect of HDTMA formed in the nanoparticle, thus producing a bimodal mesoporous material.