Facile Preparation of AgIn₅S₈ Pompon-like Microspheres with High Visible Light Photocatalytic Activity

Abstract

The pompon-like microspheres of AgIn5S8 with a cubic phase were prepared in a low temperature aqueous solution using mercaptoacetic acid as capping agent and thioacetamide as sulfur source and characterized with XRD, UV-vis absorption spectra, SEM and BET analysis. It is interesting that the microspheres are quite open and puffy. More importantly,the obtained microspheres showed remarkable photocatalytic activity for the degradation of methyl orange under visible light irradiation, which is probably due to the pompon-like morphology for providing reactive sites and facilitating the charge transfer between the target pollutant and the photocatalyst. This method could be extended to the synthesis of other functional micro/nano materials.

An S‐Scheme AgIn5S8/Bi2MoO6 Heterojunction for the Photocatalytic Degradation of Hydrochloride Tetracycline

“…[10,16] These issues can be addressed by controlling the morphology of photocatalysts or by creating composites with other semiconductors to form heterojunctions. [17][18][19] The S-scheme heterojunction is mainly composed of two n-type semiconductor photocatalysts. [20] Generally, one semiconductor (SC1) has a lower Fermi level and another semiconductor (SC2) has a higher Fermi level.…”

Photocurrent analysis of AgIn5S8 crystal

“…AgIn 5 S 8 crystals have been studied for a long time, as they have a high sensitivity to light [1,2] in the visible region with unique optical properties [3][4][5][6][7][8][9][10][11][12]. Earlier studies have reported indirect bandgap of this crystal as 1.8 and 1.9 eV at 300 and 96 K, respectively [1].…”