Modification and photocatalytic activity of TiO(2) inverse opal membranes

The surface of TiO(2) inverse opal material was modified by Liquid Phase Deposition (LPD) method, and a layer of TiO(2) nanoparticles was deposited on the inverse opal framework in order to increase the specific surface area. The photo-catalytical degradation of Rhodamine B was used as the probe-reaction to investigate the photocatalysis activity of the TiO(2) inverse opal membranes, and the influences of boric acid concentration of the LPD solution on surface morphology and photocatalysis activity of TiO(2) inverse opal membranes were investigated. The results showed that the photocatalysis activity of TiO(2) inverse opal membrane modified by LPD method was improved which was about 6 times higher than that of the unmodified TiO(2) inverse opal when the boric acid concentration of PLD solution was 0.0183 g/mL.