S-Scheme Heterojunction Formed by Mo-Doped ZnIn<sub>2</sub>S<sub>4</sub> Nanosheets and SrTiO<sub>3</sub> Nanorods as Catalyst for Formaldehyde Degradation under Visible Light
Dianxiang Peng, Zhenxun Zhao, Ao Rong, Jing Sun, Xiao Li, Hongfei Shi, Zhong‐Min Su
Abstract
The utilization of solar energy for pollutants removal is of critical importance for future society developments. In this paper, photocatalysts (Mo-ZIS/STO) compositing Mo-modified ZnIn 2 S 4 (ZIS) nanosheets with SrTiO 3 (STO) nanorods are prepared by electrostatic spinning. Mo dopant in S-scheme heterojunction widens the available spectral range and enhanced interfacial electric field effect (IEF), Mo 0.05 -ZIS/STO catalyst achieved 73.1% formaldehyde removal within 1 h. The intermediates produced during the removal of formaldehyde were characterized using in-situ DRIFTS. This work offers a perspective on the construction of photocatalytic field with metal doping and S-scheme heterojunctions, with the aim of enhancing photocatalytic performance.