Magnetically Recoverable Silver Nanocatalyst: Excellent Performance for PMS Activation

Environmental deterioration resulting from rapid industrialization has emerged as a serious threat to the biosphere, with water pollution being a major concern. Addressing this challenge requires the development of efficient and sustainable catalytic systems with features such as recyclability and facile recovery. In this study, magnetically recoverable core–shell nanostructures were designed using a CoFe ferrite core and a dopamine-derived shell, followed by surface decoration with Ag nanoparticles to enhance catalytic activity. The integration of these components provides a synergistic effect, combining high catalytic efficiency with magnetic separability. The synthesized nanocomposites exhibited excellent performance in the oxidative degradation of nitrophenols, demonstrating effective pollutant removal. Furthermore, the presence of a magnetic core enables easy recovery of the catalyst, ensuring reusability and operational convenience. Overall, the developed system offers a promising and practical approach for wastewater treatment and large-scale environmental remediation.