PHOTOCATALYTIC DECOMPOSITION OF ORANGE II OVER TiO2-LOADED ON SBA-15 PREPARED USING A MICROWAVE PROCESS

摘要

SBA-15 mesoporous material was prepared by microwave-hydrothermal method and was used as support in TiO2-loaded SBA-15 photocatalysts.The physical properties of these particles were investigated.We also examined the activity of these samples as photocatalysts for the decomposition of orange II.Titania loaded on a silica matrix decreases the surface area of the support as expected for TiO2 incorporation.For TiO2-loaded SBA-15 photocatalysts,the IR absorption at ~960 cm"1 commonly accepted as the characteristic vibration of the Ti-O-Si bond.The photocatalytic activity increases with an increase of the TiO2 loading.