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Development of polyaniline conductive membrane for electrically enhanced membrane fouling mitigation
Wang, Kunpeng; Xu, Lili; Li, Kuiling; Liu, Lie; Zhang, Yong; Wang, Jun
2019-01-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume570Pages:371-379
AbstractFouling is unavoidable in all membrane systems, limiting their practical implementation. In view of this, an in-situ method of fouling control is desperately needed to sustain membrane technologies. In this study, electrically conductive polyaniline (PANI) membranes were prepared by non-solvent induced phase separation approach. The fabricated conducive membrane with a pure water flux of 15.5 L/m(2) h bar was used in an electrofiltration cell in which the effect of applied voltage on fouling mitigation of bovine serum albumin (BSA) was evaluated. It was found that the application of external voltage alleviated the BSA fouling on membrane as indicated by the decreased flux decline rate. The antifouling performance of the membrane performed better with the increase of voltage from 0 to 1 V. The calculations based on XDLVO theory suggested that imposing an external voltage increased the surface potential of the membrane and thus improved the electrostatic repulsive force between foulants and membrane, which resulted in the fouling layer much looser, confirmed by scanning electron microscopy images, and thus reduced the hydraulic resistance. It is believed that this simple and feasible strategy for fabrication of conducive membranes has a potential for practical applications in membrane fouling mitigation.
Department环境水质学国家重点实验室
KeywordMembrane fouling Electrically conductive membrane Polyaniline Non-solvent induced phase separation Electrostatic forces
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/43076
Collection环境水质学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Natl Engn Lab Ind Wastewater Treatment, 18 Shuangqing Rd, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, 18 Shuangqing Rd, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Kunpeng,Xu, Lili,Li, Kuiling,et al. Development of polyaniline conductive membrane for electrically enhanced membrane fouling mitigation[J]. JOURNAL OF MEMBRANE SCIENCE,2019,570:371-379.
APA Wang, Kunpeng,Xu, Lili,Li, Kuiling,Liu, Lie,Zhang, Yong,&Wang, Jun.(2019).Development of polyaniline conductive membrane for electrically enhanced membrane fouling mitigation.JOURNAL OF MEMBRANE SCIENCE,570,371-379.
MLA Wang, Kunpeng,et al."Development of polyaniline conductive membrane for electrically enhanced membrane fouling mitigation".JOURNAL OF MEMBRANE SCIENCE 570(2019):371-379.
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