Hazardous methylene blue dye and As(iii) ions from wastewater are removed by the rGO and TiO2/Fe3O4 based binary and ternary nanocomposites, where ternary rGO–Fe3O4–TiO2 nanocomposite provides maximum degradation and adsorption of the pollutants.
A metal-free MB dye removal process was carried out by solvothermally synthesized rGO. After optimization, near-complete dye removal was achieved via an adsorption and UV photodegradation route.