Fe-Mn/ACF复合电极在生物-电芬顿系统中处理活性艳蓝KN-R

Treatment of Reactive Brilliant Blue KN-R using bio-electro-Fenton system with composite Fe-Mn/ACF electrode

制备了高活性的Fe-Mn/ACF复合电极,并通过扫描电子显微镜(SEM)和能谱(EDS)对其微观结构和组成成分进行了表征。随后将其置于生物-电芬顿反应器中,研究其催化性能以及在不同初始pH和浓度条件下对水溶液中活性艳蓝KN-R的去除效果。结果表明:制备的Fe-Mn/ACF复合电极具有较高的催化活性。在pH为5.0、初始质量浓度为30 mg·L^(-1)时,反应120 min后的去除率能达到95.6%,且在较广的pH范围内都有较高的活性。此外,该电极具有良好的稳定性,在循环12次以后,系统对KN-R的去除率仍然能达到81.1%。因此,生物-电芬顿系统在去除染料废水方面具有较好的应用前景。

In this study,the composite Fe-Mn/ACF electrode was prepared,and then characterized by scanning electron microscopy（SEM） and energy disperse spectroscopy（EDS） for its microstructure and composition.After that,it was adopted into a bio-electro-Fenton system as a heterogeneous Fenton catalyst provider without external power supply,so as to investigate its catalytic performance on the removal of Reactive Brilliant Blue KN-R in aqueous solution at different initial pH and concentration,respectively.The results showed that the prepared composite Fe-Mn/ACF electrode had higher catalytic activity,and the degradation efficiency could reach 95.6% at the condition of initial pH of 5.0 and initial concentration of 30 mg·L^（-1） after 120 min.Besides,a higher activity could also be obtained using the Fe-Mn/ACF facilitated system in a wide pH range.Moreover,the electrode exhibited better stability with the minimum removal efficiency reached 81.1% after twelve repeated batches of KN-R removal.Therefore,the bio-electro-Fenton system with composite Fe-Mn/ACF electrode might exert promising application prospect for dye wastewater treatment.