从水溶液中有效地去除阴离子染料,使用以聚硫为基础的膜,用蒙特莫里隆石增强
Farnaz Mortezapour1, Nasrin Shadjou2,3, Mehdi Mahmoudian4,5
1Department of Nanotechnology, Faculty of Chemistry, Urmia University, Urmia, Iran.
BMC chemistry
|April 8, 2025
概括
研究人员开发了一种用于净化水的新型聚乙硫 (PES) 和蒙莫里隆 (MMT) 膜. 这种增强的膜显示出优越的染料去除效率和抗物特性,为废水处理提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 聚合物化学 聚合物化学
背景情况:
- 废水处理需要先进的材料来有效地去除染料.
- 聚合物膜具有潜力,但往往面临着污染和效率的挑战.
- 蒙莫里隆石 (MMT) 是一种粘土矿物质,具有可以增强聚合物矩阵的特性.
研究的目的:
- 开发和描述一种新的聚乙硫 (PES) /蒙莫里隆 (MMT) 复合膜.
- 评估MMT对膜性质和性能的影响,特别是在染料去除方面.
- 评估这些复合膜在可持续净水方面的潜力.
主要方法:
- 使用相位逆转工艺制造了PES/MMT膜.
- 聚乙烯甘醇 (PEG) 用作孔隙形成剂,N-甲基利 (NMP) 用作溶剂.
- 膜特性包括FT-IR,FE-SEM,EDX,水流,吸水,接触角度和污染评估.
主要成果:
- 添加MMT显著改善了膜的水友性,多孔性和防能力.
- PES/MMT膜表现出增强的水流量 (35 L/m2·h) 和高的染料排斥率 (高达99%的刚果红).
- 由于MMT增加了负面电荷,这有助于有效地去除诸如刚果红色,甲基色和昆黄色等离子染料.
结论:
- PES/MMT复合膜代表了可持续净水技术的重大进步.
- 这些膜提供了增强的机械强度,结构稳定性和表面积,可以有效吸收染料.
- PES/MMT膜为有效的废水处理和染料去除提供了一个有希望的,环保的替代方案.
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