Experimental study of the purification performance of a MopFan-based photocatalytic air cleaning system.
Experimental study of the purification performance of a MopFan-based photocatalytic air cleaning system.
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DOI：
10.1016/j.buildenv.2023.110422
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发表时间：
2023-07-15
影响因子：
7.4
通讯作者：
Riffat, Saffa
中科院分区：
文献类型：
--
作者：
Tapia-Brito, Emmanuel;Riffat, James;Wang, Yixin;Wang, Yuhao;Ghaemmaghami, Amir M.;Coleman, Christopher M.;Erdinc, Mehmet T.;Riffat, Saffa
严重急性呼吸道综合征冠状病毒（SARS-CoV）-2是导致冠状病毒病（COVID）-19的病毒，主要通过呼吸道飞沫传播，飞沫在封闭空间中徘徊，通常会因HVAC系统而加剧。虽然改善HVAC处理SARS-CoV-2的研究正在进行中，但目前安装的HVAC系统会造成问题，因为它们使空气再循环并使用无效的过滤器来对抗病毒。本文详细介绍了利用光催化氧化（PCO）技术消除封闭空间中空气污染物和悬浮病原体的新方法的开发过程。它以前已经被用于从空气流中去除有机污染物和化合物，使用紫外（UV）光照射二氧化钛（TiO 2）表面，通过与氧（O）和羟基自由基（OH）的反应引起有机化合物的分解。结果是两个功能原型，展示了基于PCO的空气净化原理的操作。这些原型包括一个新的二氧化钛涂层纤维拖把系统，它提供了非常大的表面积的紫外线照射。四种商业上可获得的材料用于拖把的构造：Tampico、Brass、Coco和Natural合成材料。使用两种类型的UV光：365 nm（UVA）和270 nm（UVC）。进行了一系列测试，证明了原型的功能和降低挥发性有机化合物（VOCs）和甲醛（HCHO）的效率。结果表明，具有由可可纤维构造的旋转拖把并利用UVC光的MopFan实现了最佳的VOC和HCHO净化性能。在2小时内，这种组合将HCHO降低了50%，VOC降低了约23%。
Severe acute respiratory syndrome coronavirus (SARS-CoV)-2, the virus that causes the coronavirus 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 use ineffective filters against virus. This paper details the process of developing a novel method of eliminating air pollutants and suspended pathogens in enclosed spaces using Photocatalytic Oxidation (PCO) technology. It has been 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 outcome was two functional prototypes that demonstrate the operation of PCO-based air purification principle. These prototypes comprise a novel TiO2 coated fibre mop system, which provide very large surface area for UV irradiation. Four commercially accessible materials were used for the construction of the mop: Tampico, Brass, Coco, and Natural synthetic. Two types of UV lights were used: 365 nm (UVA) and 270 nm (UVC). A series of tests were conducted that proved the prototype's functionality and its efficiency in lowering volatile organic compounds (VOCs) and formaldehyde (HCHO). The results shown that a MopFan with rotary mop constructed with Coco fibres and utilising UVC light achieves the best VOC and HCHO purification performance. Within 2 h, this combination lowered HCHO by 50% and VOCs by 23% approximately.
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影响因子：
7.4
作者：
Kim, Minsu;Jung, Hyounduk;Jurng, Jongsoo
通讯作者：
Jurng, Jongsoo
影响因子：
5.8
作者：
Wongaree, Mathana;Chiarakorn, Siriluk;Sagawa, Takashi
通讯作者：
Sagawa, Takashi
影响因子：
5.8
作者：
Kolarik, J.;Wargocki, P.
通讯作者：
Wargocki, P.
影响因子：
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作者：
Zhong, Lexuan;Haghighat, Fariborz
通讯作者：
Haghighat, Fariborz
影响因子：
7.4
作者：
Zhong, Lexuan;Haghighat, Fariborz
通讯作者：
Haghighat, Fariborz