Preparation and characteristics of TiO_2/ACF photocatalytic material

TiO2/ACF photocatalytic materials were prepared by the process including viscose-based nonwoven dipping in TiO2 sol and drying,phosphoric acid activation,and calcination and characterized by EDAX,XRD and SEM.In addition,their photocatalytic degradation effect on methylene blue in aqueous solution was tested.The results indicated that TiO2 with anatase and rutile mixed-crystal phase was immobilized on the samples.Some holes were observed on the surface of the samples that turned into active carbon fibers.TiO2/ACF photocatalytic materials demonstrated excellent potocatalytic degradation performance under the light source of the UV lamp of 20 W.For the TiO2/ACF material obtained by calcining at 500 ℃,its decoloration efficiency for methylene blue could reach 98.83%.