Microwave-ultrasound-assisted rapid synthesis of three-dimensional CPF@MnOx and its application in dealdehydes at room temperature
The loading of powder catalysts onto monoliths for the removal of indoor pollutants such as formaldehyde encounters problems such as high active site coverage,cumbersome process and environmental pollution.Carbon polyurethane foam@manganese oxide(CPF@MnOx)was obtained by loading manganese oxide(MnOx)onto 3D porous carbon polyester foam(CPF)without the aid of any binder or surfactant by one-step in situ loading method.The composite monolithic material has excellent formaldehyde removal performance.Under the conditions of initial formaldehyde concentration of 9.45 cm3/m3,air speed of 42000 h-1 and relative humidity of 55%～65%,the processing capacity of 50 L formaldehyde gas at room temperature reaches 81.38%.Due to its low price,good formability and excellent formaldehyde removal properties,this material had wide potential for application in the field of air purification.
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