Enhancing hydrophilicity and water permeability of PET track-etched membranes by advanced oxidation process

被引：24

作者：

Korolkov, Ilya V. ^{[1
,2
]}

Mashentseva, Anastassiya A. ^{[1
,2
]}

Guven, Olgun ^{[3
]}

Zdorovets, Maxim V. ^{[1
,2
]}

Taltenov, Abzal A. ^{[2
]}

机构：

[1] Inst Nucl Phys, Alma Ata 050032, Kazakhstan

[2] LN Gumilyov Eurasian Natl Univ, Astana 010008, Kazakhstan

[3] Hacettepe Univ, Dept Chem, TR-06800 Ankara, Turkey

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2015年 / 365卷

关键词：

Track-etched membranes; Poly(ethylene terephthalate); Advanced oxidation processes; Oxidation; Surface functionalization; INDUCED GRAFT-POLYMERIZATION; SURFACE MODIFICATION; FILMS;

D O I：

10.1016/j.nimb.2015.10.031

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this study we present results on the application of advanced oxidation systems for effective and nontoxic oxidation of poly(ethylene terephthalate) track-etched membranes (PET TeMs) to improve their wettability and water transport properties. Two oxidizing systems: H2O2 under UV irradiation (H2O2/UV) and Fenton system under visible light (Fenton/H2O2/Vis) were compared. The surface of functionalized PET TeMs was characterized by using colorimetric assay, contact angle measurements and X-ray photoelectron spectroscopy (XPS). Results clearly showed that water permeability of PET TeMs treated with H2O2/UV was improved by 28 +/- 5% compared with etched-only membrane, the same parameter was found to increase by 13 +/- 4% in the case of Fenton/H2O2/Vis treatment. The proposed oxidation technique is very simple, environment friendly and not requiring special equipment or expensive chemicals. The surface hydrophilicity of the membranes stored for 360 days in air between paper sheets was analyzed by contact angle test, colorimetric assay to measure concentration of carboxylic groups on the surface with toluidine blue and XPS analysis. The hydrophilic properties of oxidized PET TeMs were found to be stable for a long period of time. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：651 / 655

页数：5

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