Surface modification of magnetic nanoparticles for selective adsorption of organic dyes: A mini-review

This review explores the development of magnetic nanoparticles as effective adsorbents for the selective removal of anionic and cationic dyes from wastewater.The inherent magnetic separation feature of these adsorbents allows for easy recovery and reuse.By employing surface modification techniques, the selectivity of these magnetic nanoparticles can be enhanced through the incorporation of various surface modifiers.This review also highlights other factors influencing the selectivity of magnetic adsorbents.Despite promising results in the literature, further research is needed to address the limited studies on other pollutant types and to improve the selectivity of magnetic adsorbents for specific dyes.This review also aims to provide a foundational framework for the future design of advanced magnetic adsorbents in wastewater treatment applications.