表面生物工程Mo2Ga2C MAX阶段开发混合松散纳米过膜用于织废水处理
Samira Jabbarvand Behrouz1, Alireza Khataee1,2, Vahid Vatanpour3,4
1Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran.
ACS applied materials & interfaces
|February 16, 2024
概括
研究人员通过将聚硫与功能化的MAX相混合来开发出新的松散纳米过膜 (LNMs). 这些膜显示出出色的染料排斥和织废水淡化潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- 织废水处理是一个重大的环境挑战,需要有效的染料和盐去除方法.
- 松散的纳米过膜 (LNM) 具有分化污染物的潜力,但通常在性能和稳定性方面面临限制.
研究的目的:
- 使用聚硫 (PSf) 和l-histidine氨基酸功能化Mo2Ga2C MAX阶段 (His-MAX) 制造和表征新的混合松散纳米过膜 (LNMs).
- 评估这些His-MAX混合LNMs的性能,以便同时从废水中去除染料和无机盐.
主要方法:
- 制造基于PSf的LNMs与不同度的His-MAX混合.
- 使用SEM,AFM,ATR-FTIR,接触角度,泽塔潜力,多孔性和毛孔大小分析进行表征.
- 通过纯水流量,染料排斥,盐排斥和流量回收比率 (FRR) 测试进行性能评估.
主要成果:
- 最优的LNM (0.75重量%His-MAX) 与裸体膜相比,纯水流量增加了2.5倍 (127.6 L/m2h).
- 直接红色23 (98.57%),酸棕色75 (98.31%) 和反应蓝色21 (99.7%) 的排斥率很高.
- 0.75重量%的His-MAX LNM在二元混合物中表现出99.1%的染料排斥和11.5%的盐排斥,在四个周期中保持高FRR (91.19%).
结论:
- 希斯-MAX添加剂显著提高了PSf膜的水友性,多孔性和表面光滑性.
- 制造的LNM显示了在织废水处理中高效地去除染料和部分海水淡化方面有前途的潜力.
- 这项研究为开发用于复杂废水整治的先进膜材料提供了可行的途径.
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