A facile heterogeneous system for persulfate activation by CuFe₂O₄ under LED light irradiation.

ABSTRACT: In this study, the removal performance for rhodamine B (RB) by persulfate (PS) activated by the CuFe₂O₄ catalyst in a heterogeneous catalytic system under LED light irradiation was investigated. The effect of vital experimental factors, including initial solution pH, CuFe₂O₄ dosage, PS concentration, co-existing anion and initial RB concentration on the removal of RB was systematically studied. The removal of RB was in accordance with the pseudo first-order reaction kinetics. Over 96% of 20 mg L^-1 RB was removed in 60 min using 0.5 g L^-1 CuFe₂O₄ catalyst and 0.2 mM PS at neutral pH. In addition, free radical quenching experiments and electron spin resonance (EPR) experiments were performed, which demons

SUBMITTER: Zhong X 

PROVIDER: S-EPMC9072953 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature