CAREER: Graphene-enabled Synthesis and Surface Modification of Water Separation Membranes

职业：水分离膜的石墨烯合成和表面改性

• 批准号: 1565452
• 负责人: Baoxia Mi
• 金额: $ 24.49万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-09 至 2020-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1565452&HistoricalAwards=false
• 关键词: CAREER; Graphene; enabled; Synthesis; Surface

1351430MiThis proposed project is designed to examine a relatively new material, graphene oxide nanomaterial's (GO), as a possible solution to desalination and for purifying impaired waters. By impaired waters, it refers to waters that may be contaminated with anthropogenic (made by people) chemicals. Graphene oxide membranes are thought to increase the rate at which water permeates (goes through) the membrane. This means that salt rejection is more controlled by pore size that semi-permeable membranes that are presently used in desalination. Nanomaterials are an extremely active area of research and they hold out the promise of revolutionizing many fields of science and engineering.The research will:(1) for the first time experimentally characterize aqueous-phase water transport through GO nanochannels, thereby filling the gap of our knowledge about the use of GO nanomaterials for highly efficient water separation;(2) offer novel routes to the synthesis and surface modification of water separation membranes; and (3) fundamentally elucidate the transport and photocatalytic mechanisms for the removal of targeted water contaminants by GO-enabled membranes. The proposed strategies for GO-based membrane synthesis and surface modification are facile, highly scalable, and potentially become a standard for the incorporation of GO into various membrane materials. Once these membranes are better understood, they will find widespread applications such as point-of-use water purification, on-site treatment of hydrofracking flowback water, renewable energy production, and drug delivery and artificial organ development.To help to disseminate that findings of this research the education plan will emphasize (1) recruiting underrepresented groups to promote greater diversity in the environmental workforce, and (2) participating in public exhibitions to raise environmental awareness among a much wider audience. The adopted active learning pedagogy has the potential to transform engineering sustainability education.

1351430 Mi该拟议项目旨在研究一种相对较新的材料，氧化石墨烯纳米材料（GO），作为脱盐和净化受损沃茨的可能解决方案。 受损沃茨是指可能受到人为（人类制造）化学品污染的沃茨。氧化石墨烯膜被认为增加水渗透（穿过）膜的速率。 这意味着，与目前用于脱盐的半透膜相比，盐截留率更多地受孔径控制。纳米材料是一个非常活跃的研究领域，它有望给许多科学和工程领域带来革命性的变化，本研究将：（1）首次通过实验表征GO纳米通道的水相水传输，从而填补我们对GO纳米材料用于高效水分离的知识空白差距;（2）为水分离膜的合成和表面改性提供新的途径;（3）从根本上阐明GO-使能膜去除目标水污染物的传输和光催化机理。所提出的基于GO的膜合成和表面改性的策略是容易的、高度可扩展的，并且可能成为将GO并入各种膜材料的标准。一旦这些膜被更好地理解，它们将发现广泛的应用，如使用点水净化，现场处理水力压裂回流水，可再生能源生产，药物输送和人工器官开发。为了帮助传播这项研究的结果，教育计划将强调（1）招募代表性不足的群体，以促进环境劳动力的更大多样性，及（二）参与公众展览，以提高更多市民的环保意识。所采用的主动学习教学法有可能改变工程可持续发展教育。