Two-step etch method to improve the filtering performance of nuclear track membrane

DOI

10.2991/icmcm-16.2016.39How to use a DOI?

Keywords

Nuclear track membrane; Two-step etch method; Double-cone shape; Flux comparison; Filtering performance

Abstract

A method for the fabrication of double-cone shape pores in polyethylene terephthalate (PET)-based nuclear track membranes (NTMs) is presented here. PET films of 25 æm thickness were irradiated with Bi ions (kinetic energy 9.5 MeV/u, fluence 5ž107 ions/cm2) at room temperature under vacuum at the Heavy Ion Research Facility (HIRFL) in Lanzhou.Then using two-step etch method to fabricate the NTMs with double-cone pores. Comparing the filtering flux by using Yellow-river water between the double-cone shape and regular, cylindrical shape in the experiment. Filtering flux through simulation by ANSYS Fluent and the water test results are also compared. The experimental results show that the flux of double-cone shape is significantly 5 times higher than that of cylindrical shape. And NTMs with inner pore size of 450 nm can effectively separate bacteria by an average of 99.90% (particle counter) in raw water.

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  - Yang Wang
AU  - Hua Qu
AU  - Dan Mo
PY  - 2016/12
DA  - 2016/12
TI  - Two-step etch method to improve the filtering performance of nuclear track membrane
BT  - Proceedings of the 2016 7th International Conference on Mechatronics, Control and Materials (ICMCM 2016)
PB  - Atlantis Press
SP  - 192
EP  - 198
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmcm-16.2016.39
DO  - 10.2991/icmcm-16.2016.39
ID  - Wang2016/12
ER  -