Manager, Laboratory of Materials Membranes and Environment of Faculty of Sciences and Technologies of Mohammedia, University of Hassan , Morocco
Title: Catalystâ€™s eco-design from natural clay: Modified-Clay efficient catalyst for the synthesis of Î±,Î²-unsaturated carbonyl compounds
Hanae Ouaddari obtained her engineering degree from Ecole Mohammedia des Ingénieurs in 2004 into Industrial Process Engineering (Major). She then joined the National Center for Scientific and Technical Research as Laboratory Manager for Atomic Emission Spectrometry. In 2015 she joined the Laboratory of Materials Membranes and Environment of Faculty of Sciences and Technologies of Mohammedia, University of Hassan II as PhD student. Since 2018, she has been responsible for the Chemistry Platform, which includes eight laboratories offering analytical services in the fields of molecular chemistry and synthetic chemistry. Her current research interest include the valorization of Moroccan clays for environmental applications to catalysis, adsorption and ultrafiltration.
Developing effective approaches for synthesizing catalysts is currently a top priority. Here, we report the preparation of natural catalysts from modified clay (MC). Three types of clay's were tested and compared in this present study. It is noteworthy that clay samples are of Morocco origin. The resulting materials were characterized by X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), Transmission electron microscopy (TEM), Scanning electron microscopy (SEM), X-ray Fluorescence Spectrometry (X-F), and energy dispersive X-ray spectroscopy (EDS). We also demonstrate that these materials have catalyzed the synthesis of α,β-unsaturated carbonyl compounds an effective way in terms of efficiency, processes and selectivity in water as solvent. It must however be noted that these compounds are a crucial importance in fine chemistry1,2; they are used as intermediates to synthesize other high-value-added products3. The results revealed that the MC's samples show a high-efficient catalytic activity when compared with natural clay samples. The influence of catalyst weight, and recyclability were also achieved. Several aldehydes and activated methylene are tested to prepare about numerous alkenes. The influence of the nature of substitution was also studied.