Synthesis of Dual-Responsive Alginate-Inspired Hydrocomposites for the Absorption of Blue Methylene

Dual-responsive hydrogel composites, hydrocomposites (HC), composed of magnetite particles and alginate, which undergo drastic changes in volume in response to pH and magnetic fields, were prepared and employed for the removal of methylene blue (MB) from the aqueous environment. The use of magnets allowed for the control of the MB absorption mechanism and the removal of HCs following their application in water, thereby preventing secondary...