Abstract
Polyvinylchloride (PVC) ultrafiltration membranes were modified by blending with single-walled carbon nanotubes (SWCNTs) to improve the membranes' antibacterial property. Both modified and control samples were characterized for pore structure, roughness, hydrophilicity, permeability and mechanical properties. The membranes' antibacterial property was accessed with Escherichia coli as the model microbes by several methods. It was found that, after being blended with SWCNTs, the surface roughness of the modified membrane increased. Also, the surface hydrophilicity was improved. The membrane flux increased accordingly. But the membrane elongation decreased obviously with the SWCNTs addition. The modified membranes did not show the antibacterial property as expected in this research. There was no bacterial inhibition circle around the SWCNTs/PVC membrane coupons in the culture plates. There were no morphological differences of the cells on the control and the modified membranes. Hoechst 33342/propidium iodide stain test showed that there were more than 90% living bacterial cells which could grow on the SWCNTs/PVC membranes. This study suggests that the polymer wrapping may reduce the SWCNTs' antibacterial property greatly.
| Original language | English |
|---|---|
| Pages (from-to) | 2275-2283 |
| Number of pages | 9 |
| Journal | Water Science and Technology |
| Volume | 66 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2012 Dec 1 |
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Keywords
- Antibacterial property
- Membrane
- Polymer
- Polyvinylchloride (PVC)
- Single-walled carbon nanotubes (SWCNTs)
ASJC Scopus subject areas
- Environmental Engineering
- Water Science and Technology
Cite this
Preparation of single-walled carbon nanotubes/polyvinylchloride membrane and its antibacterial property. / Zhao, Fangbo; Qiu, Feng; Zhang, Xiaohui; Yu, Shuili; Kim, Han Shin; Park, Hee-Deung; Takizawa, Satoshi; Wang, Peng.
In: Water Science and Technology, Vol. 66, No. 11, 01.12.2012, p. 2275-2283.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preparation of single-walled carbon nanotubes/polyvinylchloride membrane and its antibacterial property
AU - Zhao, Fangbo
AU - Qiu, Feng
AU - Zhang, Xiaohui
AU - Yu, Shuili
AU - Kim, Han Shin
AU - Park, Hee-Deung
AU - Takizawa, Satoshi
AU - Wang, Peng
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Polyvinylchloride (PVC) ultrafiltration membranes were modified by blending with single-walled carbon nanotubes (SWCNTs) to improve the membranes' antibacterial property. Both modified and control samples were characterized for pore structure, roughness, hydrophilicity, permeability and mechanical properties. The membranes' antibacterial property was accessed with Escherichia coli as the model microbes by several methods. It was found that, after being blended with SWCNTs, the surface roughness of the modified membrane increased. Also, the surface hydrophilicity was improved. The membrane flux increased accordingly. But the membrane elongation decreased obviously with the SWCNTs addition. The modified membranes did not show the antibacterial property as expected in this research. There was no bacterial inhibition circle around the SWCNTs/PVC membrane coupons in the culture plates. There were no morphological differences of the cells on the control and the modified membranes. Hoechst 33342/propidium iodide stain test showed that there were more than 90% living bacterial cells which could grow on the SWCNTs/PVC membranes. This study suggests that the polymer wrapping may reduce the SWCNTs' antibacterial property greatly.
AB - Polyvinylchloride (PVC) ultrafiltration membranes were modified by blending with single-walled carbon nanotubes (SWCNTs) to improve the membranes' antibacterial property. Both modified and control samples were characterized for pore structure, roughness, hydrophilicity, permeability and mechanical properties. The membranes' antibacterial property was accessed with Escherichia coli as the model microbes by several methods. It was found that, after being blended with SWCNTs, the surface roughness of the modified membrane increased. Also, the surface hydrophilicity was improved. The membrane flux increased accordingly. But the membrane elongation decreased obviously with the SWCNTs addition. The modified membranes did not show the antibacterial property as expected in this research. There was no bacterial inhibition circle around the SWCNTs/PVC membrane coupons in the culture plates. There were no morphological differences of the cells on the control and the modified membranes. Hoechst 33342/propidium iodide stain test showed that there were more than 90% living bacterial cells which could grow on the SWCNTs/PVC membranes. This study suggests that the polymer wrapping may reduce the SWCNTs' antibacterial property greatly.
KW - Antibacterial property
KW - Membrane
KW - Polymer
KW - Polyvinylchloride (PVC)
KW - Single-walled carbon nanotubes (SWCNTs)
UR - http://www.scopus.com/inward/record.url?scp=84872702582&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872702582&partnerID=8YFLogxK
U2 - 10.2166/wst.2012.388
DO - 10.2166/wst.2012.388
M3 - Article
C2 - 23032754
AN - SCOPUS:84872702582
VL - 66
SP - 2275
EP - 2283
JO - Water Science and Technology
JF - Water Science and Technology
SN - 0273-1223
IS - 11
ER -