Fabrication and characterization of environmental purification unit using photo-catalytic balls with heterojunction

With the purpose of enhancing the purification performance on organic pollutants in wastewater, the purification unit had been successfully prepared, using photocatalyst balls of TiO₂/TiC-Ti with heterojunction. The photocatalyst balls of TiO₂/TiC-Ti had been fabricated by heat treatment in carbon powder for TiC-Ti coatings. XRD and SEM results show that TiO₂ rutile with nano-size particles (40–60 nm)forms on the surface of the photocatalyst ball. The photocatalyst balls of TiO₂/TiC-Ti show satisfactory adsorption for methylene blue (MB)solution. After avoiding the high adsorption, the photocatalyst balls exhibit excellent and stable photocatalytic activity. Furthermore, the purification unit using the photocatalyst balls obtains good performance for wastewater on turbidity and oxidation reduction potential.