MoS2 nanosheets encapsulating TiO2 hollow spheres with enhanced photocatalytic activity for nitrophenol reduction

Crumpled MoS2 nanosheet encapsulating TiO2 hollow spheres ([email protected]) [email protected] three-dimensional (3D) heterojunction are synthesized successfully by in situ growth MoS2 on the surface of TiO2 through hydrothermal process. The core with a hollow structure enhanced light adsorption by multiple reflections in the available inner void space. The outer crumpled MoS2 can increase surface area of the composite. The photocatalytic reduction of [email protected] towards 4-nitrophenol is 99.35%, which is much higher than that of pure TiO2 and MoS2. The enhanced photocatalytic activity of [email protected] attributes to relative low recombination rate of the photogenerated electron-hole pairs.