Abstract
A series of high specific surface Fe2O3/AC catalysts for the Fenton-like catalytic oxidation of o-cresol wastewater was designed. The catalytic performance due to the characteristics of high specific surface area, large pore volume, high chemical stability and dispersive activity center. Under the suitable reaction conditions, the Fe2O3/AC with 3 wt.% Fe2O3 loading catalyst can run efficiently and continuously for 500 h without being deactivated, meanwhile the removal efficiency of COD can still be maintained above 59%, even the activity of the catalyst can remain above 79%. As a result, this kind of high specific surface Fe2O3/AC catalysts used in the heterogeneous Fenton-like catalytic oxidation of o-cresol wastewater has a great potential for industrial application.
Highlights
As an important organic chemical material, o-cresol is widely derived from production and discharge in the chemical fields, such as pesticides, medicine, printing and dyeing, materials, etc [1, 2]
It can be seen from the wide angle spectrum (10° ∼ 65°) of XRD in figure 2(a) that all Fe2O3/Activated carbon (AC) Fenton catalysts have the characteristic peak of activated carbon, in which 26.7° is the typical peak of activated carbon [21]
It can be seen from the FT-IR spectrum of Fe2O3/AC Fenton catalyst in figure 2(b) that Fe2O3/AC Fenton catalyst has the characteristic peaks of active carbon, in which at 2922–2855 cm−1 is the stretching vibration peaks of C–H, at 1385 cm−1 is the deformation vibration peak of H–C–H, at 1110 cm−1 is the stretching vibration peak of C–O, at 3462–3432 cm−1 is the stretching vibration peak of O–H [22, 23]
Summary
A series of high specific surface Fe2O3/AC catalysts for the Fenton-like catalytic oxidation of o-cresol licence. The catalytic performance due to the characteristics of high specific surface. Any further distribution of this work must maintain area, large pore volume, high chemical stability and dispersive activity center. Be maintained above 59%, even the activity of the catalyst can remain above 79%. As a result, this kind of high specific surface Fe2O3/AC catalysts used in the heterogeneous Fenton-like catalytic oxidation of o-cresol wastewater has a great potential for industrial application
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