Graphene oxide–TiO2 composite: an efficient heterogeneous catalyst for the green synthesis of pyrazoles and pyridines
Abstract
A graphene oxide–TiO2 composite (GO–TiO2) has been synthesized and characterized using FT-IR, FT-Raman, XRD, XPS, FESEM, EDX, TEM and N2 adsorption–desorption. GO–TiO2 has been found to be a highly efficient and recyclable heterogeneous catalyst for the synthesis of pyrazoles and pyridines in aqueous medium at room temperature.