Nanoscale Fe/Ag particles activated persulfate: optimization using response surface methodology.

This work studied the bimetallic nanoparticles Fe-Ag (nZVI-Ag) activated persulfate (PS) in aqueous solution using response surface methodology. The Box-Behnken design (BBD) was employed to optimize three parameters (nZVI-Ag dose, reaction temperature, and PS concentration) using 4-chlorophenol (4-CP) as the target pollutant. The synthesis of nZVI-Ag particles was carried out through a reduction of FeCl with NaBH followed by reductive deposition of Ag.

Electro activation of persulfate using iron sheet as low-cost electrode: the role of the operating conditions.

This work assesses the role of the operational conditions upon the electro-activation of persulfate (PS) using sacrificed iron electrode as a continuous low-cost Fe source. An aqueous phenol solution (100 mg L) was selected as model effluent. The studied variables include current density (1-10 mA cm), persulfate concentration (0.