Synthesis of Copper oxide Nanoparticles Supported on Magnetic Functionalized Graphene oxide and Its Application as Recoverable Catalyst for Reduction of the Dye pollutants in Water

Recently, graphene oxide (GO) has been extensively investigated as a new class of promising support or catalysts due to their high stability and high specific surface area [1]. Despite the high catalytic activities of GO or (RGO), their separation techniques were consumes a very energy and a long time. Fortunately, this technical limitation can be overcome by introducing Fe3O4 magnetic nanoparticles onto the surface of the GO [2],[3].This kind of supporting allows catalyst to be easily separated from the reaction mixture by an extra magnet and reused several times. There is a drastic need to develop a newer eco-friendly method for the synthesis of metal/GO nanocomposites under a mild condition. In this article, firstly the GO was reacted with 1,4-phenylenediamine (PPD) to produce GO-PPD under nitrogen atmosphere. The obtained (GO-PPD) was treated with Cyanuric chloride and ethylenediamine, then GO(PPD-CC-EN)-CuO/Fe3O4 nanocomposite was fabricated. The results show that(GO-PPD-CC-EN)-CuO/Fe3O4 nanocomposite can be employed as a magnetically recycled catalyst for the reduction of organic dyes such as methylene blue and methyl orange and 4-nitrophenol in water at room temperature.