Fabrication of TiO2-modified polytetrafluoroethylene ultrafiltration membranes via plasma-enhanced surface graft pretreatment

Fabrication of TiO2-modified polytetrafluoroethylene ultrafiltration membranes via... Article history: Surface hydrophilic modification of polymer ultrafiltration membrane using metal oxide represents an Received 13 August 2015 effective yet highly challenging solution to improve water flux and antifouling performance. Via plasma- Received in revised form 15 October 2015 enhanced graft of poly acryl acid (PAA) prior to coating TiO , we successfully fixed TiO functional thin 2 2 Accepted 6 November 2015 layer on super hydrophobic polytetrafluoroethylene (PTFE) ultrafiltration (UF) membranes. The char- Available online 12 November 2015 acterization results evidenced TiO attached on the PTFE-based UF membranes through the chelating 4+ bidentate coordination between surface-grafted carboxyl group and Ti . The TiO surface modification Keywords: ◦ ◦ may greatly reduce the water contact angle from 115.8 of the PTFE membrane to 35.0 without degra- Ultrafiltration dation in 30-day continuous filtration operations. The novel TiO /PAA/PTFE membranes also exhibited Polytetrafluoroethylene membrane excellent antifouling and self-cleaning performance due to the intrinsic hydrophilicity and photocata- Titanium dioxide (TiO ) lysis properties of TiO , which was further confirmed by the photo-degradation of MB under Xe lamp Plasma-induced graft polymerization 2 irradiation. © 2015 Elsevier B.V. All rights reserved. 1. Introduction Surface hydrophilic modification presents a viable solution to apply PTFE http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Fabrication of TiO2-modified polytetrafluoroethylene ultrafiltration membranes via plasma-enhanced surface graft pretreatment

Loading next page...
 
/lp/elsevier/fabrication-of-tio2-modified-polytetrafluoroethylene-ultrafiltration-QqXRtL5pm1
Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2015.11.059
Publisher site
See Article on Publisher Site

Abstract

Article history: Surface hydrophilic modification of polymer ultrafiltration membrane using metal oxide represents an Received 13 August 2015 effective yet highly challenging solution to improve water flux and antifouling performance. Via plasma- Received in revised form 15 October 2015 enhanced graft of poly acryl acid (PAA) prior to coating TiO , we successfully fixed TiO functional thin 2 2 Accepted 6 November 2015 layer on super hydrophobic polytetrafluoroethylene (PTFE) ultrafiltration (UF) membranes. The char- Available online 12 November 2015 acterization results evidenced TiO attached on the PTFE-based UF membranes through the chelating 4+ bidentate coordination between surface-grafted carboxyl group and Ti . The TiO surface modification Keywords: ◦ ◦ may greatly reduce the water contact angle from 115.8 of the PTFE membrane to 35.0 without degra- Ultrafiltration dation in 30-day continuous filtration operations. The novel TiO /PAA/PTFE membranes also exhibited Polytetrafluoroethylene membrane excellent antifouling and self-cleaning performance due to the intrinsic hydrophilicity and photocata- Titanium dioxide (TiO ) lysis properties of TiO , which was further confirmed by the photo-degradation of MB under Xe lamp Plasma-induced graft polymerization 2 irradiation. © 2015 Elsevier B.V. All rights reserved. 1. Introduction Surface hydrophilic modification presents a viable solution to apply PTFE

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2016

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off