Optimized Catalytic Degradation of Organic Pollutants with the Ni(II)@SiO₂-PDS System

Fenton-like reactions are broadly employed in advanced oxidation processes (AOPs) for the degradation of organic pollutants through catalytic peroxide activation. In this study, NiO was precipitated on a wrinkled SiO₂ to improve catalytic performance. The kinetics and reaction mechanism between the catalyst and S₂O₈²⁻ were studied via following the degradation of methylene blue as a model organic pollutant. The findings indicate that the excellent catalytic activity of Ni/SiO₂ and highly active sulfate radicals enhanced the degradation of methylene blue for environmental remediation. Moreover, the cost-effectiveness, and eco-friendly characteristics of the prepared Ni@SiO₂-persulfate system represents a substantial advancement in the field of catalytic oxidation, contributing valuable knowledge to the development of next-generation catalytic systems.