Thermoresponsive magnetic nanoparticles (MNPs) as a class of smart materials that
respond to a change in temperature may by used as a draw solute to extract water from
brackish or seawater by forward osmosis (FO). A distinct advantage is the efficient
regeneration of the draw solute and the recovery of water via heat-facilitated magnetic
separation. However, the osmotic pressure attained by this type of draw solution is too low to
counteract that of seawater. In this work, we have designed a FO draw solution based on …