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Electro-spinning Technique

The nanofibrous membrane is fabricated via an electro-spinning technique which utilizes electric force to spray polymer solution onto nanofibers to stretch their diameter into 10s to 100s nanometer. The nanofibers are then weaved into a nanofibrous membrane which can filter tiny substance. Based on different properties of target contaminants, the team fabricate nanofibers with different dimensions.

Anchor 1

High Water Permeability

The membrane filter is easily operated via a gravity-driven filtration process.

Anchor 2

Heavy Metals Removal 

                           > 99%

The membrane can remove > 99% for lead (Pb), nickel (Ni), cadmium (Cd), and chromium (Cr).

Anchor 3

Bacterial Removal

> 99.9999%

Bacteria such as E. coli and B. subtilis are almost totally removed in the process.

Anchor 4


The membrane can be reused after being rinsed in vinegar.

Regenerated water filter was tested by Pb for over 5-round reuse. The removal efficiency removal kept stable.

Filter Prototypes 

Awards & Recognitions

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