A mesoporous silica-supported zinc oxide catalyst was successfully synthesized by directly grinding zinc
nitrate into the as-prepared Al-Containing SBA-15 occluded with template and characterized by powder X-ray diffraction
(XRD), BET nitrogen adsorption-desorption methods, IR spectroscopy, transmission electron microscopy and diffuse
reflectance UV-Vis spectroscopy. This solvent-free method not only saves the time and energy, but also enables a high
dispersion of zinc oxide without pore blocking in the channels of mesoporous silica. The XRD and TEM analyses show
that textural properties of Al-SBA-15 retained after coating process. The resulting material was successfully applied as a
heterogeneous catalyst for Knoevenagel Condensation in good to excellent yields under mild conditions.
Keywords: ZnO. Al-SBA-15, mesoporous, heterogeneous catalyst, solvent-free, knoevenagel condensation.
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