The Degradation Study Of Ciprofloxacin/Polyacrylamid Using Ternary Composite Cathode Via Heterogeneous Electrocatalytic

The system of heterogeneous electrocatalysis played an essential role in waterwast treatment with the advantages of high activity,high stability and wide pH range.And in the text,kinds of different property cathode material were used to degradating ciprofloxacin and polyacrylamide which modified by Ce,Zr and Fe element through coprecipitation.When degradation CIP,we studied the pH,applied current,the molar ratio of Ce/Zr/Fe and their mass fraction.Comparing the pure carbon felt?CF?,we found that the 3.8 wt%Ce₃ZrFe₄O_14-x/CF?x referred to oxygen vacancy?showed an excellent degradation efficiency at 100 mA and pH range from 3 to 6.Especially,when the pH was fixed at 3,CIP was completely degraded in 3 h.In order to further understand and analyze the structure and properties of Ce₃ZrFe₄O_14-x/CF composite,SEM,BET,TEM,XRD,TOC,HPLC-MS,CV and EIS were measured.It indicated that Ce⁴⁺?Ce³⁺and Fe³⁺?Fe²⁺redox cycle on the cathode surface could produce a large number of in situ·OH,so as to improve the electrochemical catalytic properties.The ternary compound cathode applied in a wide pH range and lower energy consumption to provide the the possibility for degradation of CIP in large.When we degradated another organic pollutant PAM,the effect of different pH,current strength,Ce/Zr/Fe molar ratio and loading capacity on degradation rate still were determined.The result showed that 3.1 wt%Ce₃ZrFe₂O_11-x/CF cathode could reach an excellent degradation efficiency for PAM?5 million?,getting to 90%in 5 h under pH=3,200 mA.And with the increase of molecular weight,the degradation rate was slightly decreased,and remained above 84%.In order to further understand and analyze the performance and structure of Ce₃ZrFe₂O_11-x/CF composite,SEM,BET,FT-IR were present.The novel functional cathode materials were promising for the degradation of macromolecule compounds.