Multilayered MoS2 coated TiO2 hollow spheres for efficient photodegradation of phenol under visible light irradiation

Multilayered MoS2 coated hollow TiO2 heterostructures were fabricated by a two-step hydrothermal process using TiO2 hollow spheres as precursors. Compared with pure TiO2, the heterostructures exhibited greatly enhanced visible-light-responsive activity on photodecomposition of colorless phenol, due to the enlargement of visible light absorption and improvement separation efficiency of photogenerated electron-hole pairs. Photocatalytic activity was influenced by the MoS2/TiO2 ratio and the optimized composition was obtained with high stability during recycling.