Preparation, Structure And Catalytic Properties Of Highly-Dispersed Cu-based Composite Metal Oxides

In recent years, there has been increasing interest in developing feasible methods for disposal of toxic wastewater that cannot be treated biologically. Catalytic wet oxidation (CWO) has been shown to be an effective technique for the treatment of organic compounds such as phenol and its derivatives, which represent an important class of environmental water pollutant found in the effluent from many industries such as petrochemicals, plastics, pharmaceuticals and fine chemicals. The essential idea of the CWO process is to enhance contact between the oxidant and the organic materials to be oxidized.Copper-based mixed oxides systems are widely known as industrial catalysts for catalytic wet oxidation (CWO). Conventionally, copper-based oxide catalysts are prepared by solid phase reaction by calcining every kind of salt oxide hydroxide or other mixed material, which containing the active components or impregnating supports in aqueous solutions containing active metals and then calcining the precursors. Under the limit of preparation method, the composition and structure of products will be lead to the nonuniformity and not metric ratio, and it is difficult to obtain the well distribution of active compositions in catalysts, so these result in polytropy of composition and structure of products, furthermore, influence their catalytic interaction and performance in practical reactions and, difficultly realize the...