“…Traditional methods, such as adsorption, 6–12 membrane separation, 13,14 coagulation, 15 ozonation, 16 ion exchange, 17 biodegradation, 18 and advanced oxidation 19 have been used to remove organic dyes from wastewater and each method has its own advantages and disadvantages. However, the complex and stable structures of synthetic dyes make them difficult to remove completely and there are other problems, such as the regeneration of materials, inefficiency, high operating costs, and secondary pollution.…”