Self-cleaning effect and oil-water separation performance of hydrophobic modified polyester fiber fabric

被引：0

作者：

Fu, Jiang ^{[1
]}

Sun, Jiaoxia ^{[1
]}

Fu, Junjie ^{[1
]}

Zhu, Min ^{[1
]}

Song, Pinxue ^{[1
]}

Zhou, Yining ^{[1
]}

Fan, Jianxin ^{[1
]}

机构：

[1] School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2025年 / 44卷 / 06期

关键词：

hydrophobicity; nano-titanium dioxide; oil/water separation; polydimethylsiloxane; polyester fiber fabric;

D O I：

10.16085/j.issn.1000-6613.2024-1531

中图分类号：

学科分类号：

摘要：

The oily wastewater produced across various sectors poses a grave threat to both the aquatic environment and human health. Concurrently, the extensive application of synthetic polyester fibers has resulted in significant production of waste fibers, leading to substantial environmental pollution that cannot be overlooked. To develop and repurpose waste fiber fabrics, this study employed a simple impregnation technique to effectively deposit polydimethylsiloxane (PDMS) and nano titanium dioxide (TiO2) onto the surface of polyester (PET) fiber fabrics, thereby creating hydrophobically modified PET fiber fabrics. These were then utilized for the separation of oil-water mixtures, realizing the objective of using waste to manage waste. This research employed scanning electron microscopy, contact angle measurement, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy to characterize the physicochemical properties of hydrophobically modified PET fabrics, and subsequently evaluated their anti-fouling capabilities, chemical durability and oil-water separation performance. The results indicated that modified PDMS and TiO2 nanoparticles were successfully immobilized onto the surface of PET fiber fabric, achieving a water contact angle of 142°, thereby imparting anti-fouling and self-cleaning properties along with excellent chemical stability. In addition, when the separation was carried out with a mixture of chloroform and water with a volume ratio of 1∶1, the separation efficiency was up to 98.3% and the flux was up to (16997.27± 1499.46)L/(m2·h), and after 10 repetitions of the separation, the separation efficiency was still able to reach more than 95.7% and the flux could still be stabilized at (16551.41±1725.66)L/(m2·h). In summary, the hydrophobic PET fiber fabric exhibited a robust self-cleaning effect, high flux capacity and effective oil-water separation, offering innovative approaches for the reuse of waste fiber fabrics. © 2025 Chemical Industry Press Co., Ltd.. All rights reserved.

引用

页码：3121 / 3131

页数：10

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