Recently, MCM-41 type silica material becomes one of the most intensively studied materials because of their extensive use in various applications. With an endeavor of intensifying the electrochemical and photochemical application of mesoporous silica, metal nanoparticles (NPs) were immobilized with several other redox active metal complexes including Schiff-base metal complexes and metal phthalocyanines into/onto the functionalized/non-functionalized/ion exchanged silica. Synthesized materials were characterized by number of techniques such as FT-IR, UV-vis spectroscopy, X-ray powder diffraction analysis, electrochemical methods, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and were successfully applied to study some technologically/environmentally important photochemical and electrochemical reactions such as electro and photo catalytic CO2 and O2 reduction, electrocatalytic oxidative and reductive NO2- detection, N2H4 detection. Additionally, nanoelectrode ensemble (NEE) characteristics of Ag NPs incorporated mercaptopropyl-functionalized silica (Ag-MPS) and Ag-MPS with zinc phthalocyanine materials were semi-quantitatively evaluated by cyclic voltammetry. NEEs were fabricated based on the chemisorption property of NPs with –SH groups of mercaptopropyl functionalized silica. A comparative photocatalytic O2 reduction study has also been performed using these materials. All these aspects will be delivered in detail during the talk.
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