用于淡化水的尿素单元制备基于聚二氧化的RO膜
Joji Ohshita1,2, Katsuhiro Horata1, Toshiki Kaneko1
1Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
Membranes
|October 28, 2025
概括
新的多聚二氧化 (PSQ) 膜为水淡化提供了更好的抗性和可加工性. 这些强大的反透膜 (RO) 为全球水资源短缺提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 基于膜的海水淡化对于解决全球缺水问题至关重要.
- 聚二氧化 (PSQ) 显示出对强大的反透膜 (RO) 的承诺.
- 现有的PSQ膜在耐性,可加工性和耐热性方面存在局限性.
研究的目的:
- 设计和合成新的含尿素的单体,用于增强的基于PSQ的RO膜.
- 为了提高PSQ RO膜的抗性,可加工性和整体性能.
- 开发一种新的分子设计,用于强大而高性能的海水淡化膜.
主要方法:
- 用于制备PSQ膜的Sol-gel工艺.
- 新设计的含尿素的单体与 bis ((triethoxysilylpropyl) amine) 的共聚合.
- 性能评价,包括水透性,NaCl排斥,耐性和可加工性测试.
主要成果:
- 新的含尿素PSQ膜的性能与现有的基乙尿素基膜相美.
- 观察到显著增强的耐药性,在高暴露后,NaCl排斥减少最小 (1-3%).
- 水的透率增加了3-19%,可加工性得到了显著改善.
- 在暴露于每小时10,000ppm的气后,膜保持了高性能.
结论:
- 新型含尿素的单体使得能够开发出强大而高性能的PSQ RO膜.
- 与以前的PSQ膜相比,新膜具有更高的抗性和更好的可加工性.
- 这种分子设计为先进的海水淡化技术提供了一个可行的策略.
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