离子超分支聚胺-胺) 嵌入式纳米过膜用于高效染料淡化
Ze-Lin Qiu1, Wen-Han Yu1, Wu-Shang Yang1
1Key Laboratory of Macromolecule Synthesis and Functionalization (Ministry of Education), ERC of Membrane and Water Treatment (Ministry of Education), Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
Langmuir : the ACS journal of surfaces and colloids
|December 28, 2023
概括
新开发的使用离子超分支聚胺胺 (HBPs) 的膜有效地将染料从高盐度废水中分离出来. 这项创新增强了织行业的水处理,提高了安全性和资源回收.
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:
- 织行业的废水对人类健康和水生生态系统构成风险.
- 染料和盐的有效分离具有挑战性,特别是在高盐度条件下.
- 从工业废水中回收资源越来越重要.
研究的目的:
- 开发高效的膜,用于在高盐度的织废水中进行染料淡化.
- 在聚胺 (PA) 膜中合成和整合离子超分支聚胺 (HBPs).
- 为了研究这些修饰膜用于染料和盐分离的性能.
主要方法:
- 通过一阶段的多重凝结合成的离子超分支聚胺胺 (HBPs).
- 在PVC-UF空心纤维膜上使用界面聚合 (IP) 嵌入HBP到聚胺 (PA) 选择性层中.
- 基于透流和在工作压力下染料/盐选择性的评价膜性能.
主要成果:
- 与未经修改的膜相比,经过修改的膜 (HBP-TAC/PIP和HBP-PS/PIP) 呈现出明显更高的透流和染料/盐选择性.
- HBP-PS/PIP膜在0.4MPa以下的63.7L m-2h-1时达到664.0的黄色 (LY) /NaCl选择性.
- 由HBPs创建的带电纳米通道促进了单等价盐和离子染料的有效分离.
结论:
- 在PA膜中集成的离子HBP可以创建有效的充电纳米通道,用于高效的染料淡化.
- 开发的膜为织工业中处理高盐度染料废水提供了有希望的解决方案.
- 这项研究为工业环境中的实际染料淡化工艺提供了基础.
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