Spectral response and stability of In2S3 as visible light-active photocatalyst

Nanocrystalline In2S3 is shown to degrade photocatalytically aqueous formic acid using visible light. Its spectral response for this process is verified for the first time, showing that even photons with approximate to 650 nib are active. In2S3 is also shown to be more active and photocorrosion resistant in this process than similarly prepared CdS. (C) 2012 Elsevier B.V. All rights reserved.