Water splitting from dye wastewater: A case study of BiOCl/copper(II) phthalocyanine composite photocatalyst

► BiOCl/CuPc composite photocatalyst have been prepared by precipitation method. ► BiOCl/CuPc photoelectrode shows an enhanced photocurrent density. ► Photocatalytic activity of BiOCl/CuPc is much higher than that of BiOCl. ► Water splitting reaction on BiOCl/CuPc was achieved in methanol/H2O/RhB solution.