Fe改性TiO2光催化氧化涂料降解有机气体效能评价
Assessment of Photocatalytic Oxidation Degradation of Volatile Organic Gaseous with Paint Made of Fe-Doped TiO2
DOI: 10.12677/AEP.2022.125129, PDF,    科研立项经费支持
作者: 周士科, 刘琪瑶, 周雨阳, 李玉华*：湖北大学资源环境学院，湖北 武汉
关键词: 光催化；挥发性有机物；可见光；涂料；空气；Photocatalysis； Volatile Organic Compounds； Visible Light； Paint； Air
摘要: 挥发性有机物广泛存在于室内外环境中。其不仅会在大气环境中生成有机气溶胶和臭氧，影响能见度和地球辐射水平。还会在室内外环境中对人体健康造成危害。基于此，本研究拟应用Fe掺杂TiO2光催化剂制备涂料，模拟室内挥发性有机气体的降解。研究结果表明，Fe的加入增强了光催化剂对可见光的利用，可有效降解挥发性有机气体。但室内湿度过高会抑制光催化反应，影响挥发性有机物的降解。挥发性有机气体向催化剂涂料墙层表面的扩散是光催化降解环境空气挥发性有机物的瓶颈问题之一。本研究结果可推广应用至室外环境。为室内外环境空气中挥发性有机物的降解提供技术和数据支持。
Abstract: Volatile organic compounds are widely distributed in indoor and outdoor environments. Not only does it generate secondary organic aerosols and ozone in the atmosphere, it affects visibility and radiation levels on earth. It can also cause harm to human health in indoor and outdoor environ-ments. Therefore, the Fe-doped TiO2 photocatalyst was used to prepare paint which was applied to decompose the indoor volatile organic gases. The results showed that the addition of Fe enhanced the visible light absorption of the photocatalyst. The paint could effectively degrade the volatile organic gases. However, high indoor humidity inhibited the photocatalytic reaction and reduced the degradation efficiency of volatile organic compounds. The diffusion of volatile organic gases to the surface of the paint was one of the serious problems for photocatalytic degradation of volatile organic compounds in ambient air. The conclusions attained from this study can be extended to the outdoor environment, which provide technical and data support for the degradation of volatile organic compounds in indoor and outdoor ambient air.
文章引用：周士科, 刘琪瑶, 周雨阳, 李玉华. Fe改性TiO2光催化氧化涂料降解有机气体效能评价[J]. 环境保护前沿, 2022, 12(5): 1041-1048. https://doi.org/10.12677/AEP.2022.125129

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