Rational Design of Thermoresponsive (p-Nipam)/MCM-41 and their Decoration with Bimetallic Ag-Pd Nanoparticles for Dehalogenation Reaction
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A free radical polymerization route was adopted for the synthesis of functionalized MCM-41 with Nipam, to get a well-defined mesoporous silica functionalized thermoresponsive polymer. Further, Ag-Pd bimetallic nanoparticle was decorated over the surface of presynthesized MCM-41/p-Nipam catalyst. The structure and morphology of the samples were characterized by series of analytical techniques. Reductive dehalogenation of aryl halides were carried out using the above synthesized catalyst. The dehalogenated product were obtained with absolute conversion in a mixture of methanol and water at room temperature. The percent conversion of the dehalogenated product were analyzed using GC analysis. Among various synthesized catalysts, Ag-Pd/MCM-41/p-Nipam shows highest activity for dehalogenation. It is expected that our current work could open promising prospects for the utilization of the above material for various catalytic applications.