锑锡氧化物掺杂碳纳米管导电膜的制备及电氧化性能研究

Investigation on Preparation and Performance for Electrocatalytic Oxidation of SnO_(2)-Sb@CNTEM

塑料添加剂双酚A(BPA)作为典型激素/干扰内分泌的化学物质(EDCs)在环境中无处不在,为实现BPA的高效去除,采用抽滤的方式制备了锑锡氧化物掺杂碳纳米管的导电膜(SnO_(2)-Sb@CNTEM),并通过膜过滤和电氧化过程的耦合去除BPA。通过SEM、XPS、XRD对膜电极的表面性质进行了表征,并通过LSV、CV、EIS对SnO_(2)-Sb@CNTEM的电化学性质进行了表征。以BPA为目标污染物,考察了膜电极的电氧化性能、稳定性,以SMX、DCF、CIP、TC为目标污染物,考察了膜电极的通用性。研究表明,成功制备了SnO_(2)-Sb@CNTEM;SnO_(2)-Sb@CNTEM的电氧化性能优于CNTEM;BPA在本研究条件下更容易被降解;SnO_(2)-Sb@CNTEM具有较高的稳定性和通用性。

The plastic additive bisphenol A(BPA)is ubiquitous in the environment as a typical hormone/endocrine-disrupting chemicals(EDCs),and in order to achieve efficient removal of BPA,antimony-tin-oxide doped carbon nanotubes with conductive membranes(SnO_(2)-Sb@CNTEM)have been prepared by pumping filtration and BPA was removed by coupling membrane filtration and electro-oxidative processes.The membrane electrodes were also characterized for their surface properties by SEM,XPS,XRD,and the electrochemical properties of SnO_(2)-Sb@CNTEM were characterised by LSV,CV,and EIS.The electrooxidation performance and stability of the membrane electrode were investigated with BPA as the target contaminant,and the generality of the membrane electrode was investigated with SMX,DCF,CIP,and TC as the target contaminants.It was shown that SnO_(2)-Sb@CNTEM was successfully prepared.The electrooxidation performance of SnO_(2)-Sb@CNTEM was better than that of CNTEM,BPA was more easily degraded under the conditions of the present study and SnO_(2)-Sb@CNTEM had high stability and versatility.