Fig. 5From: Photocatalytic Properties of Co3O4-Coated TiO2 Powders Prepared by Plasma-Enhanced Atomic Layer DepositionUV-visible absorption and degradation curves of MB solution with various catalysts. a Pure P25. b 100-cycle Co3O4. c 200-cycle Co3O4-coated P25 catalyst. d Degradation curves of MBBack to article page