An in-situ strategy to analyze multi-effect catalysis in iron-copper bimetals catalyzed Fenton-like processes

Critical role of dissolved oxygen and iron–copper synergy in dual-metal/char catalyst systems

“…BPY addition system only remain copper alone catalyzed reaction, and neocuproine addition system only remain iron alone catalyzed reaction. 34 When BPY and neocuproine were added together to shield the metal species, only a weak inhibition was observed in the first 60 minutes of the reaction compared to neocuproine addition alone. This result implied that the role of Fe alone was limited, which excluded the direct activation of DO by Fe( ii ).…”

“…4a). 34 When neocuproine was added, CIP removal was severely reduced to 23.6%, which directly proved that Cu(I) played an indispensable role in the system. In general, Cu(0) mediates the activation of DO through a single-electron or a twoelectron reduction route.…”

Preparation of Heterogeneous Fenton Catalysts Cu-Doped MnO2 for Enhanced Degradation of Dyes in Wastewater

“…Among the various technologies utilized until now, the heterogeneous Fenton reaction is regarded as an efficient and promising approach. The heterogeneous Fenton reaction is a kind of advanced oxidation process (AOP) [6], which can generate •OH and •O 2 − from H 2 O 2 under the catalysis of nanocatalysts and can cause the degradation of organic pollutants further [7][8][9]. Compared with the traditional homogeneous Fenton reaction, the heterogeneous Fenton reaction displays smaller quantities of sludge, wider pH applicability, higher catalytic performance, and so on, for which it has attracted much attention [10,11].…”