Sono-assisted adsorption of a textile dye on milk vetch-derived charcoal supported by silica nanopowder

Milk vetch as an economic precursor of charcoal was coated by silica nanopowder in order to increase its surface area and subsequently its capacity for removing azo dye molecules from aqueous phase via adsorption process. The combination of adsorption process with ultrasonication was considered to enhance the adsorption process. The sono-assisted adsorption of azo dye molecules on silica nanopowder-modified charcoal was more efficient than that of adsorption alone.259