I-Corps: Photocatalytic Water Purification Technology for the Removal of Pollutants that are Commonly Problematic for Water Treatment Systems

I-Corps：光催化水净化技术，用于去除水处理系统中常见问题的污染物

• 批准号: 1949648
• 负责人: Jun Jiao
• 金额: $ 5万
• 依托单位: Portland State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-15 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1949648&HistoricalAwards=false
• 关键词: Corps; Photocatalytic; Water; Purification; Technology

The broader impact/commercial potential of this I-Corps project is an improvement in the current state-of-the-art water purification capability. The technology expands the range of water purification effectiveness and provides a means of preventing anthropogenic wastes from entering the environment through photocatalytic degradation. The removal of organic material from the water system has an ever-increasing role in the subject of human health. The degree to which anthropogenic water waste affects human health is ultimately tied to the ability to remove these wastes from our water supply. Unlike filtration methods, photocatalytic oxidation has the ability to destroy these contaminants without the need for chemical additives. Successful commercialization of this technology protects health by improving the capability for organic waste remediation. There also are many industrial applications requiring organic pollutant removal where this technology can have impact. The proposed system is capable of oxidizing water contaminants and can destroy contaminants that are commonly problematic for water treatment systems. This I-Corps project is based on fundamental research showing improved efficiency and scalability of photocatalytic water purification systems by optimizing the 3D geometry of the catalyst material in conjunction with the geometry of the illumination system. The result was a significant reduction in energy loss, as well as an overall improved usability and scalability of the system. The photocatalyst material itself also has been modified in order to optimize the electrical and chemical properties of the catalyst surface. Implantation of TiO2 and SiO2 nanoparticles resulted in increased degradation performance by more than 500%. The overall efficiency of the photocatalytic reactor also was considered with respect to energy usage as defined by the Electrical Energy per Order (EEO) characterization model. The lowest EEO achieved in this system was 54 kWh per cubic meter of water for each order of magnitude reduction in pollutant concentration - an improvement in EEO over previously reported thin-film based photoreactors.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这个I-Corps项目的更广泛的影响/商业潜力是对目前最先进的水净化能力的改进。该技术扩大了水净化效果的范围，并提供了一种通过光催化降解防止人为废物进入环境的手段。从水系统中去除有机物质在人类健康问题中的作用越来越大。人为水废物对人类健康的影响程度最终取决于从我们的供水中去除这些废物的能力。与过滤方法不同，光催化氧化具有破坏这些污染物的能力，而不需要化学添加剂。这一技术的成功商业化通过提高有机废物补救能力来保护健康。还有许多需要有机污染物去除的工业应用，这项技术可能会产生影响。所提出的系统能够氧化水污染物，并且可以破坏通常对水处理系统有问题的污染物。该I-Corps项目基于基础研究，通过优化催化剂材料的3D几何形状以及照明系统的几何形状，提高了光催化水净化系统的效率和可扩展性。其结果是显著减少了能量损失，以及系统的可用性和可扩展性的整体改善。光催化剂材料本身也经过了改性，以优化催化剂表面的电气和化学性能。TiO 2和SiO2纳米粒子的植入导致超过500%的降解性能增加。光催化反应器的整体效率也被认为是相对于由每订单电能（EEO）表征模型定义的能量使用。该系统实现的最低EEO为每立方米水54千瓦时，污染物浓度每减少一个数量级-EEO比以前报道的薄膜光反应器有所改进。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。