Layered indium chalcogenidoantimonates [Me2NH2]2In2Sb2S7-xSex (x = 0, 2.20, 4.20, 7) with tunable band gaps and photocatalytic properties†
Abstract
Two novel indium chalcogenidoantimonates and their quaternary mixed solid solutions with a layered structure of [In2Sb2S7-xSex]n2nā are successfully synthesized under mild solvothermal conditions. The compounds show a red-shift of their optical absorption edges and exhibit tunable photocatalytic activity for degradation of