Enhanced micropollutant degradation over catalyst-free synergistic activation of periodate and persulfate under solar light.

ABSTRACT: Micropollutants are ubiquitous in water sources, posing threats to both human health and ecosystems. Conventional water and wastewater treatment processes are inefficient in micropollutant removal. In this study, the energy-effective and environmentally friendly solar light-driven periodate (PI) and peroxydisulfate (PDS) synergistic activation process (PI/PDS/solar light) is developed for efficient micropollutant decontamination. The PI/PDS/solar light process (0.5 mM PI and 0.25 mM PDS) achieves 100% degradation of 2 ppm CBZ in 15 min with a CBZ degradation rate constant of 0.31 min^-1, which is 6.6 and 13.2 times that of PI/solar light (0.046 min^-1, 0.5 mM PI) and PDS/solar light (0.023 min^-1, 0.5 mM PDS). Mechanistic studies reveal that the enhanced solar

SUBMITTER: Zheng Z 

PROVIDER: S-EPMC12325505 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature