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SusChEM: Sustainably derived high performance nanofiltration membranes with vertically aligned nanopores for organic contaminant removal and water purification

SusChEM：可持续衍生的高性能纳滤膜，具有垂直排列的纳米孔，用于有机污染物去除和水净化

基本信息

批准号：
2010890
负责人：
Chinedum Osuji
金额：
$ 24.72万
依托单位：
University of Pennsylvania
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-07-01 至 2024-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2010890&HistoricalAwards=false
关键词：
SusChEM Sustainably derived performance nanofiltration

项目摘要

PI Name: Chinedum OsujiProposal Number: CBET 1703494Access to clean water is a prerequisite for improving or maintaining the quality of human life and boosting economic productivity. Nanofiltration is critically important as a cost-effective method for removing multivalent ions and organic contaminants from water. It is increasingly utilized for pre-discharge treatment and reclamation of industrial wastewaters and to address problems regarding the isolation of contaminants such as pesticides, pharmaceuticals and personal care products. This project addresses the need to improve the performance of current state-of-the-art nanofiltration membranes using sustainable materials. The overarching goal is to fabricate highly-ordered, aligned nanoporous membranes from plant-derived materials using scalable methods and to characterize the performance of these membranes. The industrial relevance and potential utility of the membranes developed here represent broader impacts with significant societal relevance. The project involves a range of additional broader impacts including K-12 outreach, curriculum development focused on environmental remediation, and student training. The potential of self-assembled nanostructured materials to serve as high performance nanofiltration membranes has contributed significantly to interest in understanding and controlling structure-property relationships in such systems. The realization of deliberately nanostructured membranes using sustainable materials requires the development of materials and methods to guide self-assembly of applicable molecular species in membrane-relevant form factors. This project is centered on such efforts. The overarching objective is the scalable fabrication and characterization of high performance nanofiltration membranes for water purification using sustainable materials. Precisely-engineered molecular templates will be used to guide the self-assembly of plant-derived monomers to form ordered systems. Suitably confined, these ordered systems yield aligned nanoporous polymer films upon UV-induced crosslinking of the monomers and subsequent removal of the molecular template. The PI will examine structure-property relationships in self-assembled systems based on plant-derived materials and will systematically characterize the rejection properties of fabricated membranes. New methods will be developed to control the thickness of selective layers in the sub-micron regime and to provide thickness control in the presence of mechanical support layers. The specific objectives are: (1) formation and characterization of self-assembled nanoporous materials using unsaturated fatty acids from vegetable oils as renewable feedstocks; (2) optimization of alignment processes and assembly of nanofiltration membranes; and (3) Systematic performance characterization of nanofiltration membranes.

PI姓名：Chinedum Osuji提案编号：CBET 1703494获得清洁水是改善或维持人类生活质量和提高经济生产力的先决条件。纳滤作为一种具有成本效益的去除水中多价离子和有机污染物的方法至关重要。它越来越多地用于工业废水的排放前处理和回收，并解决有关分离农药、药品和个人护理产品等污染物的问题。该项目解决了使用可持续材料改善当前最先进纳滤膜性能的需求。总体目标是使用可扩展的方法从植物来源的材料制造高度有序的、对齐的纳米多孔膜，并表征这些膜的性能。这里开发的膜的工业相关性和潜在效用代表了具有显著社会相关性的更广泛的影响。该项目涉及一系列额外的更广泛的影响，包括K-12外展，课程开发侧重于环境修复和学生培训。自组装纳米结构材料作为高性能纳滤膜的潜力，大大有助于理解和控制在这样的系统中的结构-性能关系的兴趣。使用可持续材料实现故意纳米结构的膜需要开发材料和方法来引导膜相关形状因子中的适用分子种类的自组装。这个项目就是以这种努力为中心的。总体目标是使用可持续材料可规模化制造和表征用于水净化的高性能纳滤膜。精确设计的分子模板将用于引导植物衍生单体的自组装以形成有序系统。在适当的限制下，这些有序体系在紫外线诱导的单体交联和随后去除分子模板后产生对齐的纳米多孔聚合物膜。PI将研究基于植物衍生材料的自组装系统的结构-性能关系，并将系统地表征制造膜的截留性能。将开发新的方法来控制亚微米范围内的选择性层的厚度，并在存在机械支撑层的情况下提供厚度控制。具体目标是：（1）使用来自植物油的不饱和脂肪酸作为可再生原料的自组装纳米多孔材料的形成和表征;（2）纳米过滤膜的对准过程和组装的优化;以及（3）纳米过滤膜的系统性能表征。