Accelerating the Degradation of Organic Pollutants with Fe Single-Atom Catalysts, achieved a kinetic rate constant of 1.4404 min⁻¹— 2880 times higher than conventional materials! Recently, a research team from Linyi University published a significant study in Water Research (IF 12.4), a top-tier journal in the field of water treatment, on the efficient Fenton‑like degradation of organic pollutants using Fe single‑atom catalysts (FNC‑MMT SACs) constructed on montmorillonite/g‑C₃N₄ heterostructures. The developed catalytic system achieved a kinetic rate constant of 1.4404 min⁻¹—36 to 2880 times higher than conventional materials—and maintained over 95% removal efficiency for more than 2000 min in a continuous-flow membrane reactor.
During the study, the authors used an Elite EClassical 3200 HPLC system (equipped with a UV detector, an online degasser, and a thermostatted column compartment) to quantitatively determine the concentrations of acetaminophen (APAP), bisphenol A (BPA), sulfamethoxazole (SMZ), atrazine (ATZ), and other pollutants in the reaction solutions. Samples were filtered through 0.22 μm membranes and separated on a C18 reversed‑phase column under different mobile phase conditions, with detection wavelengths ranging from 225 to 265 nm.
The Elite HPLC system provided accurate and reliable quantitative data for degradation kinetics calculations, comparison of catalytic activities of different materials (Fig. 3a–d), evaluation of continuous‑flow performance (Fig. 3j), and analysis of degradation efficiency for various pollutants (Fig. 3g). Solidly supported the study’s key findings.
Paper Title: Precise synthesis of Fe single-atom catalysts on montmorillonite/g-C3N4 heterostructures for highly efficient fenton-like degradation of organic pollutants； Journal: Water Research, 2025, 287, 124420；
