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

Abstract

A composite of AgIn5S8/AgInS2was 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/AgInS2composite 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/AgInS2composite displayed better stability than that of pure AgIn5S8and AgInS2.

Efficient 0D/2D Heterostructured Photocatalysts with Zn-AgIn5S8 Quantum Dots Embedded in Ultrathin NiS Nanosheets for Hydrogen Production

“…I-III-VI QDs such as ZnS-AgInS 2 , CuIn 1– x Ga x S 2 , and CuGa 2 In 3 S 8 have shown excellent photocatalytic H 2 production performance. In recent years, I-III-VI QD-based nanocomposites have become popular with improved H 2 performance for visible light response, including AgIn 5 S 8 /TiO 2 , AgIn 5 S 8 /AgInS 2 , and Zn-AgIn 5 S 8 /ZnS, so as to improve the H 2 evolution and stability. At the same time, a lot of research studies show that loading cocatalysts can remarkably promote charge carrier separation and increase the active sites for H 2 production. , However, the practical photocatalytic activity is far below expediting, which greatly limits its application .…”