Iron-cobalt metal oxide activated persulfate degrades benzothiazole in water
With the development of the economy,the extensive use of various chemicals has led to the emergence of new pollutants,creating a challenge in environmental research.One such contaminant is benzothiazole (BZA)that poses a significant threat to aquatic ecosystems and the safety of drinking water.In this study,FeCo2O4 nanomaterials were prepared by sol-gel method and characterized by XPS (X-ray photoelectron spectroscopy ),HRTEM (High resolution transmission electron microscopy ),SEM (Scanning electron microscopy ) and XRD (X-ray diffraction).The degradation of BZA in water was tested using persulfate (PMS)advanced oxidation technology,with FeCo2O4 acting as catalyst to activate PMS.Various influencing factors and degradation mechanism were also discussed.Results show that with the addition of 0.3 g/L FeCo2O4 and 3 mmol/L PMS,BZA was completely removed within 90 min.Even after four cycles FeCo2O4 maintained a 76.90％ removal efficacy.The degradation process primarily involved SO·-4,which played a leading role in BZA degradation.Additionally,common anion HCO-3 promoted BZA degradation,whereas humic acid and Cl-inhibited the process.
iron-cobalt metal oxidesbenzothiazolepersulfateinfluencing factorsdegradation mechanism
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