Nanoporous sponges for atmospheric water harvesting

用于大气集水的纳米多孔海绵

• 批准号: 561416-2020
• 负责人: Tavares, JasonRobertJR
• 金额: $ 7.08万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=753718
• 关键词: Nanoporous; sponges; atmospheric; water; harvesting; Nanoporous; sponges; atmospheric; water; harvesting

Water scarcity threatens more and more people in the world - examples from various regions highlight the severity of this issue. Cape Town (South Africa) imposed stringent water restrictions in 2018 in response to shortages. Closer to home, water restrictions were put into place in Quebec in the summer of 2020, and First Nation communities have been confronted with fresh water issues for years. These examples illustrate that water scarcity is a ubiquitous issue, even in Canada, and this is exacerbated by climate change. Alternate water sources, including adsorption from the atmosphere, are needed to secure a fresh water supply. Nanoporous sponges (NPS) are new carbon-based adsorbents synthesized via the pyrolysis of low-cost materials, achieving comparable performance to metal organic framework (MOF) based systems, but at significantly lower cost. This material was developed at Polytechnique Montreal, in partnership with McGill University and Awn Nanotech, via a collaborative research endeavour started in 2017. The proposed research aims to bridge the gap between lab scale prototyping and end-user uptake by addressing key fundamental issues. Specifically, we aim to: (1) Create a roadmap for NPS synthesis scale-up and evaluate new methods for improved synthesis and functionalization; (2) Identify the key parameters impacting water capture and subsequent release through both theoretical modelling and experimental validation, and quantify energy requirements; and (3) Fabricate and test next generations of water capture prototypes based on NPS technology and benchmark them against other adsorbents, while validating water quality. This high-risk, high-reward project will first and foremost impact Canada's at-risk population - First Nation communities will be key participants in prototype evaluation, with the collaboration of community leaders and social scientists well-versed in technology uptake. Further effects will be felt in the Canadian economy, both through direct markets, but also through the creation of high-value jobs in the advanced materials sector, and the establishment of Canada as a leader in the field of water resource generation, committed to helping vulnerable communities affected by water scarcity.

缺水会威胁到世界上越来越多的人 - 来自各个地区的例子突出了这个问题的严重性。开普敦（南非）在2018年对短缺施加了严格的水限制。靠近家中，2020年夏天在魁北克施加了水限制，第一民族社区已经面临淡水问题多年。这些例子说明，即使在加拿大，水的稀缺也是一个无处不在的问题，气候变化也会加剧。需要替代水源，包括大气吸附，以确保淡水供应。纳米孔海绵（NPS）是通过低成本材料的热量解析来合成的新型碳基吸附剂，可实现与基于金属有机框架（MOF）的系统相当的性能，但成本明显降低。该材料是在蒙特利尔Polytechnique开发的，与麦吉尔大学和Awn Nanotech合作，通过合作研究努力始于2017年。拟议的研究旨在通过解决实验室规模的原型设计与最终用户吸收之间的差距，通过解决实验室规模的原型范围之间的差距。具体而言，我们的目的是：（1）为NPS合成扩展创建路线图，并评估改进合成和功能化的新方法； （2）通过理论建模和实验验证并量化能量需求，确定影响水捕获和随后释放的关键参数； （3）根据NPS技术制造和测试下一代水捕获原型，并对其他吸附剂进行基准测试，同时验证水质。这个高风险，高回报的项目将首先影响加拿大高危人口 - 第一民族社区将是原型评估的关键参与者，社区领导者和社会科学家的合作良好。无论是通过直接市场，以及通过在高级材料领域创造高价值工作，以及作为水资源生成领域的领导者建立高价值工作的加拿大经济，都将在加拿大经济中感受到进一步的影响。