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ClassificationCode:TQ028.8
year,volume(issue):pagination: 2020,40(2):53-59

Abstract:
Bi-SnO2/GO electrocatalytic membrane based on polytetrafluoroethylene (PTFE) microporous membrane was prepared by electrochemical-hydrothermal method. The composition structure and electrochemical performance were characterized by a series of characterization methods such as SEM, TEM, EDS, XRD, LSV, EIS, CV and so on. The removal efficiency of Bi-SnO2/GO membrane was also evaluated by treating E. coli. The results show that when the molar ratio of Bi to Sn is 1:15 and the electrodeposition voltage is 2V, the oxygen evolution potential of the electrocatalytic membrane is 1.75V. Bi-SnO2 nanoparticles were uniformly distributed on the surface of Bi-SnO2/GO electrocatalytic membrane. The particle size is about 10.4 nm, and the contents of Sn and Bi elements are 11.28 wt% and 3.59 wt%, respectively. Under the DC voltage of 2.5 V and the continuous operation time of 5 h, the removal rate of E. coli by Bi-SnO2/GO membrane is 96.82%. This indicates that the Bi-SnO2/GO electrocatalytic membrane has a good application prospect in the removal of microorganisms from water.

Funds:
国家自然科学基金(51878659),军队后勤科研重大项目(AWS18J004)

AuthorIntro:
第一作者简介:李雪燕(1993-),女,河南驻马店人,硕士生,研究方向为膜分离水处理技术,E-mail:2965783374@qq.com; *通讯作者:E-mail: zmf323@163.com,E-mail: dcnudt@163.com

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