Fabrication of unique Tin(IV) Sulfide/Graphene Oxide for photocatalytically treating chromium(VI)-containing wastewater

摘要

A new type hexagonal nanoflowers of Tin(IV) Sulfide/Graphene Oxide was synthesized by hydrothermal method. The Tin(IV) sulfide is uniformly deposited on the surface of the graphene oxide and that as-prepared Tin(IV) Sulfide/Graphene Oxide photocatalyst showed strong absorption in the visible light region. Photocatalytic test indicated that the obtained Tin(IV) Sulfide/Graphene Oxide photocatalyst showed increased photocatalytic activity towards the degradation of Hexavalent chromium in comparison with the bare Tin(IV) Sulfide and Graphene Oxide under visible light irradiation. The cycling and stable performance of the Tin(lV) Sulfide/Graphene Oxide also shows excellent photocatalytic effect. Furthermore, a possible reaction mechanism of removing Cr(VI) in Tin(IV) Sulfide/Graphene Oxide was investigated and discussed, proving their potential applications in treating wastewater. (C) 2017 Elsevier Ltd. All rights reserved.