TY - JOUR
T1 - Persulfate activation over CoFe2O4/CuS for degradation of Orange II under visible light
AU - Hao, Yixing
AU - Zhu, Fang
AU - Cheng, Hao
AU - Komarneni, Sridhar
AU - Ma, Jianfeng
N1 - Publisher Copyright:
© 2023
PY - 2024/2
Y1 - 2024/2
N2 - A magnetic porous composite catalyst has been synthesized from CoFe2O4 and CuS. Its degradation performance towards organic pollutants in a heterogeneous photocatalytic system has been compared with those of the individual photocatalysts and those of individual chemocatalysis systems. Orange II served as a target contaminant. Persulfate and catalyst were combined under visible light conditions to achieve degradation of the organic pollutant, whereupon the degradation efficiency reached up to 97 %. The catalyst has been characterized by X-ray diffraction (XRD) analysis, X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET) analysis, Mott–Schottky analysis, scanning electron microscopy (SEM), and solid-state UV/Vis spectrophotometry. The influences of pH and different catalyst and persulfate loadings in the system have been studied. The results of quenching experiments showed non-radical degradation to be a major pathway, with singlet molecular oxygen (1O2) and photogenerated holes (h+) as the critical reactive species. Besides, the magnetic properties of the catalyst are conducive to its recycling, and it still showed high degradation efficiency after three cycles.
AB - A magnetic porous composite catalyst has been synthesized from CoFe2O4 and CuS. Its degradation performance towards organic pollutants in a heterogeneous photocatalytic system has been compared with those of the individual photocatalysts and those of individual chemocatalysis systems. Orange II served as a target contaminant. Persulfate and catalyst were combined under visible light conditions to achieve degradation of the organic pollutant, whereupon the degradation efficiency reached up to 97 %. The catalyst has been characterized by X-ray diffraction (XRD) analysis, X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET) analysis, Mott–Schottky analysis, scanning electron microscopy (SEM), and solid-state UV/Vis spectrophotometry. The influences of pH and different catalyst and persulfate loadings in the system have been studied. The results of quenching experiments showed non-radical degradation to be a major pathway, with singlet molecular oxygen (1O2) and photogenerated holes (h+) as the critical reactive species. Besides, the magnetic properties of the catalyst are conducive to its recycling, and it still showed high degradation efficiency after three cycles.
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U2 - 10.1016/j.jpcs.2023.111787
DO - 10.1016/j.jpcs.2023.111787
M3 - Article
AN - SCOPUS:85181727922
SN - 0022-3697
VL - 185
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
M1 - 111787
ER -