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The preparation of Co3O4-GO/PES hybrid membrane and its catalytic cleaning property

Authors： OUYANG Gan, CAI Wenbei, LI Dengxin*

Units： College of Environmental Science and Engineering，State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry，Donghua University，Shanghai 201620，China

KeyWords： cobalt oxide; grapheme oxide; polyethersulfone; catalytic cleaning

ClassificationCode：TQ325.8

year,volume(issue):pagination： 2016,36(2):34-40

Abstract：

In this study, novel polyethersulfone (PES) ultrafiltration membranes blended with cobalt oxide/graphene oxide (Co3O4-GO) nanocomposites were prepared by solvent-non-solvent phase inversion method. Cross section structure, hydrophilicity, permeability and fouling resistance properties were studied to investigate the effect of different content of nanocomposites embedded in polymer matrix on the behavior of modified membranes. Additionally, the catalytic cleaning performance of modified membranes and the optimal condition for catalytic cleaning were also investigated. The experimental results indicated that the hydrophilicity, permeability and antifouling properties were promoted significantly, especially the pure water flux of the hybrid membrane was improved from 101.1 L?m-2?h-1 to 347.9 L?m-2?h-1 comparing with the pristine membrane. On the other hand, the flux recovery ratio after the fouling of ultrafiltration process of landfill leachate was promoted with the increase of blending content of Co3O4-GO, the concentration of monopersulfuric bisulfate (PMS) and membrane immersion time, the optimal cleaning condition was that membrane with 1.5 wt.% nanocomposites, 5 mM PMS and immersing 30 min.

Funds：

高等学校博士学科点专项科研基金（20130075110006），南通市通州区510英才计划

AuthorIntro：

欧阳赣（1990-），男，硕士研究生，研究方向为膜分离技术，E-mail: ouyanggan1023@foxmail.com.通讯作者：E-mail: lidengxin@dhu.edu.cn

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