INFEWS N/P/H2O:EPRI:GOALI: A Novel Janus Membrane with Asymmetric Wetting Properties for Simultaneous Anti-wetting and Anti-fouling Membrane Distillation

INFEWS N/P/H2O:EPRI:GOALI：一种具有不对称润湿特性的新型 Janus 膜，可同时进行防润湿和防污膜蒸馏

• 批准号: 1705048
• 负责人: Shihong Lin
• 金额: $ 32.93万
• 依托单位: Vanderbilt University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2022-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1705048&HistoricalAwards=false
• 关键词: INFEWS; H2O; EPRI; GOALI; Novel

PI Name: Shihong LinProposal Number: 1705048 Membrane distillation (MD) is an emerging membrane-based thermal desalination technology that can utilize low-temperature heat to desalinate hypersaline water. Current MD membranes are typically made of polymeric materials that are readily wet by compounds such as surfactants and fouled by many organic compounds. These drawbacks typically limit MD processes to desalinating relatively clean saline water free of these constituents. Overcoming these limitations in material properties will permit MD processes to be used with a much broader range of feed water and wastewater that are challenging for existing technologies. The PIs plan to develop a novel membrane with resistance to both wetting and fouling for MD as a solution to overcome the materials limitations and enhance the capability of MD as a desalination technology. The novel membranes will be fabricated by integrating two functional layers with distinct wetting properties to impart the simultaneous resistance to fouling and wetting. The PIs will also integrate educational activities aimed at fostering the interests of K-12 students in STEM. They will also develop educational kits and modules for K-12 outreach and host talented high school students to conduct research related to this project. The overarching goal of this project is to develop a novel Janus membrane with resistance to both wetting and fouling for robust and versatile MD applications. This goal will be achieved by conducting the three following specific tasks. First, Janus membranes will be fabricated by integrating an in-air omniphobic substrate and an underwater superhydrophilic skin layer. The second major task involves characterizing the morphological and wetting properties as well as the standard MD performance of the fabricated Janus membranes. Lastly, the performance of the Janus membranes will be tested with synthetic and real wastewater to evaluate them in the presence of amphiphilic and hydrophobic contaminants. For practical relevance, the real wastewater will be provided by the industrial partner, which has expertise in treating specialized wastewater from pharmaceutical and petrochemical industries. In addition to material development, characterization, and performance testing, fundamental studies of wetting and fouling will also be conducted using electro-impedance spectroscopy and multi-scale force spectroscopy, respectively. The PIs will develop novel materials as a solution to relevant environmental problems. The fabrication techniques developed in this study will enhance our capacity of engineering structured membranes with multiple functional properties. The fundamental studies on fouling and wetting will potentially have an impact on enhancing the performance of other membrane-based processes as well. Through this project, the PIs will integrate the research and education by incorporating the results from the project into the course materials at both graduate and undergraduate level, promoting the participation of undergraduate students and high school students in laboratory research, and developing educational kits and modules for K-12 outreach. Specifically, the PIs will focus on surface wetting as the thematic topic for K-12 outreach and develop hands-on experimental kits integrating STEM and art that foster the curiosity and creativity of the K-12 students.

PI姓名：林世宏提案编号：1705048膜蒸馏（MD）是一种新兴的基于膜的热脱盐技术，其可以利用低温热来使高盐水脱盐。目前的MD膜通常由聚合物材料制成，所述聚合物材料容易被化合物如表面活性剂润湿并被许多有机化合物污染。 这些缺点通常限制MD方法对不含这些成分的相对清洁的盐水进行脱盐。 克服材料特性的这些限制将允许MD工艺与更广泛的给水和废水一起使用，这对现有技术来说是一个挑战。PI计划开发一种新型膜，既能抵抗MD的润湿又能抵抗MD的污染，作为克服材料限制和提高MD作为脱盐技术的能力的解决方案。新型膜将通过集成两个功能层与不同的润湿性能，赋予同时抗污染和润湿。PI还将整合旨在培养K-12学生对STEM的兴趣的教育活动。 他们还将为K-12外展开发教育工具包和模块，并接待有才华的高中生进行与该项目相关的研究。该项目的总体目标是开发一种新型的Janus膜，具有抗润湿和抗污染的能力，适用于强大和多功能的MD应用。这一目标将通过开展以下三项具体任务来实现。首先，Janus膜将通过整合空气中的全憎性基底和水下的超亲水性皮肤层来制造。第二个主要任务涉及表征的形态和润湿性能，以及制造的Janus膜的标准MD性能。最后，Janus膜的性能将用合成和真实的废水进行测试，以评估它们在两亲性和疏水性污染物存在下的性能。实际上，真实的废水将由工业合作伙伴提供，该合作伙伴具有处理制药和石化行业专业废水的专业知识。除了材料开发，表征和性能测试，润湿和污垢的基础研究也将分别使用电阻抗谱和多尺度力谱进行。PI将开发新材料作为相关环境问题的解决方案。在这项研究中开发的制造技术将提高我们的工程结构膜的多功能特性的能力。对污染和润湿的基础研究也将对提高其他膜工艺的性能产生潜在的影响。 通过这个项目，PI将通过将项目的结果纳入研究生和本科生的课程材料，促进本科生和高中生参与实验室研究，并为K-12推广开发教育套件和模块，将研究和教育结合起来。具体而言，PI将专注于表面润湿作为K-12外展的主题，并开发集成STEM和艺术的动手实验套件，以培养K-12学生的好奇心和创造力。

项目成果

Significance of surface excess concentration in the kinetics of surfactant-induced pore wetting in membrane distillation

• DOI: 10.1016/j.desal.2018.10.024
• 发表时间: 2019-01
• 期刊: Desalination
• 影响因子: 9.9
• 作者: Zhangxin Wang;Yuanmiaoliang Chen;Feiyang Zhang;Shihong Lin

Mechanism of pore wetting in membrane distillation with alcohol vs. surfactant

• DOI: 10.1016/j.memsci.2018.04.045
• 发表时间: 2018-08
• 期刊: Journal of Membrane Science
• 影响因子: 9.5
• 作者: Zhangxin Wang;Yuanmiaoliang Chen;Xiangming Sun;R. Duddu;Shihong Lin

Colloidal interactions between model foulants and engineered surfaces: Interplay between roughness and surface energy

• DOI: 10.1016/j.ceja.2021.100138
• 发表时间: 2021
• 作者: Thomas Horseman;Zhangxin Wang;Shihong Lin

Gypsum scaling in membrane distillation: Impacts of temperature and vapor flux

• DOI: 10.1016/j.desal.2021.115499
• 发表时间: 2022-03-01
• 期刊: DESALINATION
• 影响因子: 9.9
• 作者: Christie, Kofi S. S.;Horseman, Thomas;Lin, Shihong
• 通讯作者: Lin, Shihong

Distinct Behaviors between Gypsum and Silica Scaling in Membrane Distillation

• DOI: 10.1021/acs.est.9b06023
• 发表时间: 2020-01-07
• 期刊: ENVIRONMENTAL SCIENCE & TECHNOLOGY
• 影响因子: 11.4
• 作者: Christie, Kofi S. S.;Yin, Yiming;Tong, Tiezheng
• 通讯作者: Tong, Tiezheng