Enhanced adsorption of crystal violet from aqueous solution by polyethyleneimine-modified magnetic hydrogel nanocomposites

Waste‐Valorized Nanowebs for Crystal Violet Removal from Water

“…Additionally, carbon nanotubes, [31] despite their excellent adsorption properties, [32,33] may be expensive and pose potential health risks if released into the environment. [34,35] Furthermore, magnetic NMs, although efficient in CV adsorption, [36][37][38] may generate metal ions or require magnetic separation processes, making them less convenient for large-scale applications. These limitations warrant further research to explore more effective, manageable, and sustainable NMs for CV removal from water, preferably as metal-free systems.…”