Nanotube Heterostructures MoS2/CdS/TiO2 for CO2 Conversion

Abstract

In this paper, a novel photochemical heterostructure MoS2/CdS/TiO2 were prepared by electrochemical anodization and subsequent magnetron sputtering technique. The MoS2/CdS/TiO2 heterostructures possess high photochemical activity for CO2 conversion. The gas yields of H2, CO, CH4 with the assistance of the heterostructure are 22.79 µmol/g/h, 0.69 µmol/g/h, and 5.96 µmol/g/h, which are 67.4 times, 3.8 times, and 11.9 times higher than that of pristine TiO2 respectively. The enhanced photochemical activity might be attributed to high light absorption, fast carrier separation, and sufficient active edge sites. Therefore, these findings provide a promising approach and practical avenue to synthesize low-cost and efficient heterogeneous nanocomposites for CO2 conversion.