层次结构的空心纤维膜,可有效,选择性和可扩展地从水中去除离子
1State Key Laboratory of Advanced Fiber Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
Advanced materials (Deerfield Beach, Fla.)
|June 11, 2025
概括
一种新的空心纤维膜有效地从水中去除有毒的离子 (Hg2+). 这种稳定,可重复使用的膜为水生环境中大规模的整治提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 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.
背景情况:
- 离子 (Hg2+) 具有高度毒性和生物积累,对水生生态系统和人类健康构成重大风险.
- 硫化聚烯二 (SPAN) 纳米颗粒显示出由于与Hg2+的强烈相互作用,对吸附有希望.
- 传统的SPAN纳米粒子应用存在不良稳定性,分布不均和潜在的二次污染.
研究的目的:
- 开发一种稳定,可再生和高度选择性的去除材料.
- 为了克服传统的SPAN纳米粒子分散和涂层方法的局限性.
- 提出一种具有成本效益和可扩展的整治方法.
主要方法:
- 使用湿制造一个SPAN集成的空心纤维膜的制造.
- 膜的层次结构和孔隙结构的表征.
- 评估Hg2+吸附性能,选择性和再生效率.
主要成果:
- 与SPAN集成的空洞纤维膜显示出出色的Hg2+吸附能力和稳定性.
- 获得了98.31%的初始Hg2+去除效率.
- 在五个再生周期后,膜保持了高效率 (≈99.7%),并在可扩展设备中显示了90.94%的去除率.
结论:
- 开发的SPAN集成的空心纤维膜是一种高度有效和稳定的材料,用于整治.
- 湿制造提供了一种可扩展和可持续的方法来生产先进的去除膜.
- 这种方法为解决水中大规模污染提供了一种新的,具有成本效益的解决方案.
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