Journal of the Taiwan Institute of Chemical Engineers ( IF 5.5 ) Pub Date : 2021-12-18 , DOI: 10.1016/j.jtice.2021.104166 Libin Wang 1 , Linlin Zang 2 , Shaochun Zhang 1 , Jinhui Chang 1 , Fengtong Shen 1 , Yanhong Zhang 1 , Liguo Sun 1
|
Background
In recent years, frequent oil spills and the discharge of industrial organic pollutants have caused long-term damage to the ecological environment and human safety. It is still a challenge to develop low-cost, stable, and reusable materials for highly efficient oil/water separation.
Methods
Herein, the steady, recyclable and economical silica-based fibers were fabricated via self-assembly method (based on electrostatic attraction) and hydrophobic modification, which possess superhydrophobicity and petal effect.
Findings
The composite fibers had a high water contact angle of approximately 160 ° and high adhesion to water which can be utilized to adhere droplets without loss. The composite fibers can not only adsorb but also filter oil from water environment, and the separation efficiency reached up to 99.2% even after 10 cycles of dichloromethane/water separation. The fibers have great application potential in oil spill adsorption and oil/water separation.
中文翻译：
具有强附着力的超疏水纤维用于油水分离
背景
近年来，频繁的石油泄漏和工业有机污染物的排放，对生态环境和人类安全造成了长期的破坏。开发低成本、稳定、可重复使用的高效油水分离材料仍然是一个挑战。
方法
在此，通过自组装方法（基于静电引力）和疏水改性制备了稳定、可回收和经济的二氧化硅基纤维，具有超疏水性和花瓣效应。
发现
复合纤维具有约 160° 的高水接触角和对水的高粘附性，可用于粘附液滴而不会损失。该复合纤维既能吸附又能过滤水环境中的油污，即使经过10次二氯甲烷/水分离循环，分离效率也达到99.2%。该纤维在溢油吸附和油水分离方面具有巨大的应用潜力。
京公网安备 11010802027423号