Kinetics of acetaminophen removal was synergistically studied by spectroscopic andĮlectrochemical techniques, revealing various reaction pathways attributed to theįormation of intermediate compounds such as p-aminophenol and others. Of 1.54 h-1, with the second-best result of 0.59 h-1 after oxidation in 30% H2O2. The electro-induced incineration kinetics of acetaminophen resulted in a rate constant Volume corresponding with the surface morphology.Ī pristine carbon felt electrode was capable of decomposing up to 70% of theĪcetaminophen in a 240 min electrolysis process, while the oxygen-plasma treatedĮlectrode achieved a removal yield of 99.9% estimated utilising HPLC-UV-Vis. Modifications caused minor changes in both the specific surface area and total pore The utilised oxidation techniques deliver single-step, straightforward,Įco-friendly, and stable physiochemical reformation of carbon felt surfaces. The modification of the porousĪnodes results in increased kinetics of acetaminophen degradation in aqueousĮnvironments. (thermal, chemical, and plasma-chemical) were applied to carbon felt anodes toĮnhance their efficiency towards electro-oxidation. Advanced oxidative modification processes The electrode showed high stability and reusability therefore suggesting that the z-scheme Bi2WO6-CNP-TiO2 nanotube arrays electrode is an efficient photoanode for the degradation of pharmaceuticals in wastewater.Ĭarbon felts are flexible and scalable, have high specific areas, and are highlyĬonductive materials that fit the requirements for both anodes and cathodes inĪdvanced electrocatalytic processes. Scavenger studies revealed that the holes played a crucial role during the photoelectrocatalytic degradation of paracetamol. The total organic carbon removal percentage obtained when using this electrode was 72%. At optimal conditions, the electrode was applied for photoelectrocatalytic degradation of paracetamol, which gave a degradation efficiency of 84% within 180 min.
The effect of parameters such as current density and pH were studied. The materials and z-scheme electrode were characterised using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS), EDS mapping, ultraviolet diffuse reflection spectroscopy (UV-DRS), photocurrent measurement, electrochemical impedance spectroscopy (EIS), uv-vis spectroscopy and total organic carbon measurement (TOC). In this study, a ternary z-scheme heterojunction of Bi2WO6 with carbon nanoparticles and TiO2 nanotube arrays was used to remove paracetamol from water by photoelectrocatalysis.
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