Facile preparation of S/Fe composites as an effective peroxydisulfate activator for RhB degradation

Synthesis of Cu2O–CuFe2O4 microparticles from Fenton sludge and its application in the Fenton process: the key role of Cu2O in the catalytic degradation of phenol

“…The calcination temperature was chosen as 850 °C because higher temperature causes lower reactivity and lower temperature favors severe leaching from catalysts. 30 Moreover, for comparison purpose, the Cu 2 O microparticles was synthesized in a similar way by using CuSO 4 ·5H 2 O individually as a precursor material. The formation of Cu 2 O–CuFe 2 O 4 microparticles could be described by eqn (4) and (5) : …”

Comparative study of the photocatalytic performance for the degradation of different dyes by ZnIn2S4: adsorption, active species, and pathways

“…Aer N-deethylation, rhodamine was degraded into intermediate VII (m/z 181.04 (M + )) with cleavage of the carbonnitrogen bond (C]N), which was responsible for visible absorbance at 553 nm for RhB and formation of several aromatic intermediates such as benzoic acid (VIII, m/z 122.55 (M + )) and phenol (IX, m/z 94.04 (M + )). 31 According to the pathway of photocatalytic degradation RhB by Bi-doped TiO 2 , RhB was degraded completely via four processes: N-deethylation, cleavage of chromophores, rings opening and mineralization. 32 Thus, the aromatic intermediates may be degraded into small molecule organic matters via ring opening with increased reaction time.…”

One-step pyrolysis for the preparation of sulfur-doped biochar loaded with iron nanoparticles as an effective peroxymonosulfate activator for RhB degradation

“…Sulfurization in AOPs is thought to accelerate electron transfer between the iron species and oxidant on the material surface, thereby enhancing the activation of H 2 O 2 or PMS. [64][65][66] However, further experiments and discussion should be carried out in the future to verify this hypothesis. EPR was performed to identify the main ROS generated in the Fe/S 0.05 -BC/PMS system.…”