One-Pot Synthesis and Visible Light Photocatalytic Activity of AgIn5S8/AgInS2 Composite

A composite of AgIn5S8/AgInS2 was prepared in aqueous solution by a simple low temperature process using mercaptoacetic acid as capping agent and thioacetamide as sulfur source. The composite was characterized by Xray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. The obtained AgIn5S8/AgInS2 composite showed high visible photocatalytic activity for the degradation of methyl orange with 97.5% of degradation efficiency of methyl orange under visible irradiation for 10 min. Under same conditions, furthermore, the AgIn5S8/AgInS2 composite displayed better stability than that of pure AgIn5S8 and AgInS2.