基于改造的微纤维化纤维素框架的超疏水微孔膜,用于高效的油水分离
Yuxin Zhu1, Ting Zhang1, Hong Liu1
1Key Laboratory of Bio-Based Polymeric Materials of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China; University of Chinese Academy of Sciences, Beijing 100049, China.
International journal of biological macromolecules
|September 1, 2024
概括
稳定,高效的基于纤维素的膜使用酸改性微纤维化纤维素 (MFC) 有效地处理工业油性废水. 这些超疏水膜表现出高油水分离流量和效率,即使经过多个循环.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 工业油性废水带来了重大的环境挑战.
- 开发稳定高效的油/水分离膜至关重要.
- 基于纤维素的材料为膜制造提供了一个可持续的平台.
研究的目的:
- 制造一种新的基于纤维素的超水膜,用于油性废水处理.
- 为了研究油水分离性能和开发的膜的稳定性.
主要方法:
- 微纤维化纤维素 (MFC) 用棒状酸 (HAP) 的修改.
- 制造一个微孔的聚二甲基 (PDMS) -MFC-HAP膜.
- 膜超性 (水接触角) 和油水分离性能的表征.
主要成果:
- PDMS-MFC-HAP膜表现出超性,其水接触角度为151.6°.
- 在各种油中的水乳液中实现了高分离流量 (高达3665.3 L·m−2·h−1·bar−1) 和效率 (>99.6%).
- 证明了出色的可重复使用性,在20个周期后保持98.6%的分离效率.
结论:
- 开发了一种简单有效的方法来制造基于纤维素的超水膜.
- 在油性废水处理中,PDMS-MFC-HAP膜显示出高效油水分离的巨大潜力.
- 这种方法为可持续的工业废水管理提供了一个有希望的解决方案.
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