Fe-MCM-41 with highly ordered mesoporous structure and high Fe content: synthesis and application in heterogeneous catalytic wet oxidation of phenol

Catalytic wet peroxide oxidation of phenol over Cu–Ni–Al hydrotalcite

“…Zrnčević and Gomzi (2005) considered that E a values in phenol oxidation varied from 55 kJ mol − 1 to 175 kJ mol − 1 , where the lower ones were more characteristic of total oxidation to CO 2 , whereas the higher ones probably resulted from polymerization to tars rather than from true oxidation. The E a value determined in our experiments, thus, fell within the range of total oxidation, less than that over Cu-zeolite catalysts (about 90 kJ mol − 1 ) (Vieira et al, 2006;Zrnčević and Gomzi, 2005), and very close to that over Fe-MCM-41 catalyst (66.6 kJ mol − 1 ) (Khieu et al, 2009). decreased the oxidation rate of phenol, whereas the presence of chlorides significantly increased the oxidation rate.…”

“…The UV-spectra were recorded on a UV-Vis spectrophotometer (TU-1810PC, Beijing Purkinje General Instrument Co., China), with a scan step of 0.5 nm in the wavelength range 200-350 nm. HPLC analysis was performed using an Agilent 1200 Series LC (Agilent Technologies, USA), equipped with a Zorbax ODS C-18 column using mobile phase (acetonitrile:methanol:water = 1:1:8) and a UV detector operating at 254 nm (Khieu et al, 2009). The injection volume was 5 μL and the mobile phase flow rate was 1 mL min − 1 at 25°C.…”

Electrochemical Determination of Paracetamol Using Fe3O4/Reduced Graphene-Oxide-Based Electrode

“…The isotherm curves belong to typical type IV according to IUPAC classification. The presence of the hysteresis loop at a high relative pressure region indicates the mesopore which was attributed to the void Journal of Nanomaterials between the primary particles [46]. The specific surface areas calculated from the BET model of GrO, rGO, and [38,44] but higher than that of other reports [47,48].…”

Cu and Fe oxides dispersed on SBA-15: A Fenton type bimetallic catalyst for N,N -diethyl- p -phenyl diamine degradation

“…As shown in Table 1, the equilibrium adsorption capacity of CuFe/BSA-15 is only 14 mg/g catalyst , and hence adsorption can only account for 0.14% of the observed DPD loss, the overwhelming majority of which is therefore ascribed to its oxidation by hydroxyl radicals (OH • ) generated through H 2 O 2 decomposition over Cu 2+ and Fe 3+ active sites, resulting in mineralization of the organic contaminant to CO 2 and water [41][42][43][44][45]. Fig.…”