Facile Preparation of Ag₂S-CNT Nanocomposites with Enhanced Photo-catalytic Activity

Abstract

Here we report improved photo-catalytic effect of Ag 2 S under visible light using carbon nano-tubes (CNT) modified with Ag 2 S nanoparticles.The optical properties, structural properties and compositional analysis, as well as the photo-electrochemical properties of the prepared composites were investigated.It was found that the photocurrent density, and the photo-catalytic effect, was increased by modification of CNT in this way.Compared with the separate effects of Ag 2 S and CNT nanoparticles, the photocatalytic effect of CNT-modified-with-Ag 2 S composites, increased significantly due to a synergistic effect between the CNT and the Ag 2 S nanoparticles.