UiO-66(Zr) has been demonstrated to be an efficient heterogeneous catalyst in the esterification of oleic acid and methanol for biodiesel production. For the development of multi-functional sites in the structure of UiO-66(Zr), direct synthesis of UiO-66(Zr) with extra metal centers is a challenge. Based on our previous work of solvent-free synthesis, tin-doped UiO-66(Zr) was prepared under solvent-free conditions. The produced materials were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), N2 sorption technique, Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and temperature-programmed desorption (TPD) analysis of NH3. The results indicate that UiO-66(Zr/Sn)-green with bimetal centers exhibits superior catalytic performance in the esterification of oleic acid. Additionally, the influence of tin integration on the structure and reactivity of UiO-66(Zr) significantly accelerates the esterification process at room temperature. Such catalyst could easily be recycled and reused.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.