Separation and recycling of nanoparticles using cloud point extraction with non-ionic surfactant mixtures

► Inorganic nanoparticles (NPs) can be recovered from non-ionic micellar media by cloud point extraction (CPE). ► A cost-effective purification route for processing NPs requiring relatively cheap and commercially available surfactants. ► Mixing two non-ionic surfactants allows for temperature tunability and optimization of the NP-CPE recovery process. ► The NP-CPE process can be repeated demonstrating reproducibility and recyclability.