Oxidative degradation of dye pollutants over a broad pH range using hydrogen peroxide catalyzed by FePz(dtnCl2)4

A heterogeneous Fenton-like system with nanoparticulate zero-valent iron for removal of 4-chloro-3-methyl phenol

“…It has been proved that pH is one of the decisive factors influencing the performance of the Fenton-like process in the removal of pollutants due to its role in controlling the catalytic activity, the activity of the oxidant and the substrate, the dominant iron species, and the stability of hydrogen peroxide [10,20,32,33]. The influence of initial pH value of solutions on the degradation of CMP by the nZVI/H 2 O 2 oxidation process was investigated at four different pH values of 3.0, 4.0, 5.0 and 6.1, as shown in Fig.…”

Metal-free activation of H2O2 by g-C3N4 under visible light irradiation for the degradation of organic pollutants

“…Heterogeneous solid Fenton-like catalysts, such as Fe 0 / FeO x H 2xÀ3 , Fe 2 O 3 /SiO 2 and FePZ(dtnCl 2 ) 4 , were therefore developed to replace homogeneous catalysts. [6][7][8] Non-ferrous catalysts have also been explored as activation catalysts for H 2 O 2 , for example, copper-pillared clays (Cu-PILC) were reported to decompose organic waste using H 2 O 2 .…”

Highly Efficient LaCoO3 Nanofibers Catalysts for Photocatalytic Degradation of Rhodamine B

“…4(b), the photocatalytic activity of LaCoO 3 increases as the pH decreases from 7.0 to 4.0, whereas a further decrease in pH to 3.5 affects the photocatalytic activity of the catalyst negatively. Lower pH can accelerate the photodegradation of RhB according to researchers; 18 however, further increasing the H + concentration may reduce the crystal structure of the as‐prepared LaCoO 3 , and favor leaching of the metal into the solution, 19 with the result of depressed photocatalytic activity toward the photodegradation of RhB. Thus, the optimum pH for our photocatalysts is pH 4.…”