Preparation And Property Of PVDF Ultrafiltration Membrane Modified By Graphene

DOI

10.2991/aeecs-16.2016.61How to use a DOI?

Keywords

graphene; ultrafiltration membrane; separation performance; hydrophilic; tensile strength

Abstract

In order to improve the hydrophilicity and mechanical strength of the membrane, the modified PVDF ultrafiltration membranes were prepared by the phase inversion method with different contents of nano graphene dispersed uniformly in the PVDF casting solution. In the experiment, the effect of graphene on the separation performance, contact angle, zeta potential and tensile strength of the membranes were investigated, and the flux recovery rate and flux decline rate were also investigated. The crystal structure of the membranes were characterized by X ray diffraction (XRD) and thermal analysis (DSC). The results showed that the performance of pore size, porosity and pure water flux of the modified membranes were improved. The tensile strength, hydrophilic and anti-fouling properties of the membranes were also improved. The separation performance, hydrophilic and anti-fouling properties of the modified membranes were the best when the addition content of graphene was 0.5%. Graphene had no effect on the crystallinity of the membranes, and XRD found that the graphene in the casting solution was physical blend.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Beifu Wang
AU  - Qingtao Wu
PY  - 2016/05
DA  - 2016/05
TI  - Preparation And Property Of PVDF Ultrafiltration Membrane Modified By Graphene
BT  - Proceedings of the 2016 International Conference on Advances in Energy, Environment and Chemical Science
PB  - Atlantis Press
SP  - 322
EP  - 325
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeecs-16.2016.61
DO  - 10.2991/aeecs-16.2016.61
ID  - Wang2016/05
ER  -