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Deposited silver on a silanized ceramic membrane for anti-biofouling properties

Authors： ZHANG Shaowei, ZHANG Huiqin, ZHONG Zhaoxiang, XING Weihong

Units： Research Center of Membrane Science and Technology, National Engineering Research Center for Special Separation Membrane, Nanjing University of Technology, Jiangsu Nanjing 210009, China

KeyWords： ceramic membrane; silanization; silver nanoparticle; anti-biofouling

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2013,33(5):8-13

Abstract：

Ceramic membrane was modified by silver to improve its anti-biofouling property. Silver nanoparticles were immobilized onto the surface-silanized α-Al2O3 ceramic membrane to prepare Ag-loaded silanized ceramic membrane (denoted as Ag-SCM). Ag-SCM was characterized by TGA, XPS and SEM, etc. The stability of silver nanoparticles on ceramic membrane were investigated. Anti-biofouling property was tested with the typical bacteria E.coil with a load of 107 CFU/mL in ultrapure water. It was found that the silver nanoparticles uniformly deposited on the silanized ceramic membrane, and had well stability. Ag-SCM can effectively inhibit the growth of colonies and remove all bacteria in the water. The flux of Ag-SCM increased obviously. The results demonstrated that Ag-SCM can inhibit biofouling caused by bacteria in the membrane surface

Funds：

国家自然科学基金项目(21125629，21076102)；国家863项目(2012AA03A606)；江苏省环保科研课题项目(201018)；江苏省高校自然科学基金(10KJB530002)

AuthorIntro：

张绍伟(1985-)，男，河南新乡市人，硕士研究生，研究方向：膜法水处理，E-mail：showwe2012@163.com. *通讯联系人：邢卫红，E-mail：xingwh@njut.edu.cn

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