Engineering low-valence Moδ+ (0<δ<4) sites on MoS2 surface: Accelerating Fe3+/Fe2+ cycle, maximizing H2O2 activation efficiency, and extending applicable pH range in photo-Fenton reaction

Satisfactory degradation of tetracycline by a pH-universal CoFe-LDH/MoS2 heterojunction catalyst in Fenton process

“…In a heterogeneous Fenton reaction, the conversion rate of Fe 3+ to Fe 2+ is the rate-limiting step. 36 In our work, the co-catalytic effect of MoS 2 realized iron circulation on the surface of CoFe-LDH/MoS 2 ( Equations 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , and 11 ). The ≡Fe 2+ on the catalyst surface decomposed H 2 O 2 to generate ⋅OH.…”

“… 16 , 30 Moreover, the presence of ≡Co 3+ and ≡Mo 6+ on the surface of CoFe-LDH/MoS 2 further promoted the directional conversion of ⋅O 2 − to 1 O 2 ( Equations 10 and 11 ). 30 , 36 Finally, the entire Fenton system was dominated by 1 O 2 for efficient degradation of organic pollutants, facilitating H 2 O 2 decomposition and generating a significant amount of ROS through the built-in redox couple (Fe, Co, and Mo). …”

Study on diazinon toxicity reduction by electro-Fenton process: A bioassay using daphnia magna

“…(1)–(7 ). It must be noted that the redox cycle of Fe 3+ /Fe 2+ is critical for the continuous operation of the process [ [52] , [53] , [54] ] and using electro Fenton process can regenerate a useful form of iron (Fe 2+ ) to continue the oxidation phenomenon (Eq. (7) ) [ 55 ].…”