Additional file 1: Figures S1–S6. of Facile Fabrication of Bi2WO6/Ag2S Heterostructure with Enhanced Visible-Light-Driven Photocatalytic Performances

The EDS, BET surface area, and Zeta potential analysis for the as-formed heterostructures, the XRD pattern of Ag2S, and the temporal evolution of Rh B absorption spectra over Bi2WO6/Ag2S heterostructure at different pH values. Figure S1. Elemental mapping and EDX spectra of the Bi2WO6/Ag2S heterostructure. Figure S2. EDS spectra of the composite photocatalysts Bi2WO6/Ag2S. Figure S3. Nitrogen adsorption-desorption isotherms and the pore size distribution curve (inset) of sample (a) Bi2WO6 and (b) Bi2WO6/Ag2S. Figure S4. XRD pattern of Ag2S. Figure S5. Zeta potential for a suspension containing 1 g L of sample Bi2WO6/Ag2S in the presence of KCl (10−3 M) at different pH values. Figure S6. The temporal evolution of Rh B absorption spectra over Bi2WO6/Ag2S heterostructure at different pH values