"Low cost air quality device for virus removal from indoor air environment and public transport (EP/V049100/1)"

“用于去除室内空气环境和公共交通中病毒的低成本空气质量装置（EP/V049100/1）”

• 批准号: EP/W010917/1
• 负责人: Saffa Riffat
• 金额: $ 33.74万
• 依托单位: University of Nottingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FW010917%2F1
• 关键词: Low; cost; air; quality; device

SARS-CoV-2, the virus that causes the disease Covid-19, is primarily transmitted through respiratory droplets which linger in enclosed spaces, often exacerbated by HVAC systems. Although research to improve HVAC handling of SARS-CoV-2 is progressing, currently installed HVAC systems cause problems because they recirculate air and also use ineffective virus filters. This project will develop a novel method of eliminating SARS-CoV-2 and future viruses in enclosed spaces using Photocatalytic Oxidation (PCO) technology, previously employed to remove organic contaminants and compounds from air streams using the irradiation of titanium dioxide (TiO2) surfaces with ultraviolet (UV) lights causing the disintegration of organic compounds by reactions with oxygen (O) and hydroxyl radicals (OH). The O and OH reactions can also destroy viruses.Using the established results from previous R&D, the project will develop a novel TiO2 coated copper fibre mop system, which will both act as a fan and provide the essential very large surface area for UV irradiation. Research will include optimizing UV frequencies, intensity, and improvement on photocatalytic oxidation by doping of TiO2 with metals, followed by in vitro studies investigating the effects on SARS-CoV-2, and other endemic coronaviruses. The rotating fibre fan, illuminated by a high intensity UV, allows viruses to be eliminated in an efficient, nearly silent system, adaptable for small or larger applications.Engineering will include optimization of two demonstrators: a low-profile wall unit and free- standing floor unit. These low cost, efficient systems will be demonstrated to industry to allow rapid adoption for buildings and public transport systems.

SARS-CoV-2 是导致 Covid-19 疾病的病毒，主要通过呼吸道飞沫传播，这些飞沫在封闭空间内徘徊，而暖通空调系统往往会加剧这种情况。尽管改善 HVAC 对 SARS-CoV-2 处理的研究正在取得进展，但目前安装的 HVAC 系统会造成问题，因为它们会再循环空气，并且还使用无效的病毒过滤器。该项目将开发一种利用光催化氧化 (PCO) 技术消除封闭空间中的 SARS-CoV-2 和未来病毒的新方法，该技术以前用于通过用紫外线 (UV) 照射二氧化钛 (TiO2) 表面来去除气流中的有机污染物和化合物，通过与氧气 (O) 和 羟基自由基（OH）。 O和OH反应还可以消灭病毒。利用先前研发的既定成果，该项目将开发一种新型TiO2涂层铜纤维拖把系统，该系统既可以充当风扇，又可以为紫外线照射提供必要的非常大的表面积。研究将包括优化紫外线频率、强度，以及通过在 TiO2 中掺杂金属来改善光催化氧化，随后进行体外研究，调查其对 SARS-CoV-2 和其他地方性冠状病毒的影响。由高强度紫外线照射的旋转光纤风扇可以在高效、近乎安静的系统中消灭病毒，该系统适用于小型或大型应用。工程将包括对两个演示器的优化：薄型壁式单元和独立式地板单元。这些低成本、高效的系统将向业界展示，以实现建筑物和公共交通系统的快速采用。

项目成果

Investigation on the Efficient Removal of Particulate Matter (PM) with Biomass-Based Aerogel

• DOI: 10.5334/fce.131
• 发表时间: 2021-08
• 期刊: Future Cities and Environment
• 作者: Yixin Wang;Emmanuel Tapia-Brito;James Riffat;Ziwei Chen;Fatang Jiang;S. Riffat

Experimental Study of the Purification Performance of a Mopfan-Based Photocatalytic Air Cleaning System

基于Mopfan的光催化空气净化系统净化性能实验研究

• DOI: 10.2139/ssrn.4390471
• 发表时间: 2023
• 作者: Tapia-Brito E

Experimental study of the purification performance of a MopFan-based photocatalytic air cleaning system.

• DOI: 10.1016/j.buildenv.2023.110422
• 发表时间: 2023-07-15
• 期刊: BUILDING AND ENVIRONMENT
• 影响因子: 7.4
• 作者: Tapia-Brito, Emmanuel;Riffat, James;Wang, Yixin;Wang, Yuhao;Ghaemmaghami, Amir M.;Coleman, Christopher M.;Erdinc, Mehmet T.;Riffat, Saffa
• 通讯作者: Riffat, Saffa