Investigation on the Efficient Removal of Particulate Matter (PM) with Biomass-Based Aerogel
Investigation on the Efficient Removal of Particulate Matter (PM) with Biomass-Based Aerogel
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DOI：
10.5334/fce.131
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发表时间：
2021-08
影响因子：
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通讯作者：
Yixin Wang;Emmanuel Tapia-Brito;James Riffat;Ziwei Chen;Fatang Jiang;S. Riffat
中科院分区：
文献类型：
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作者：
Yixin Wang;Emmanuel Tapia-Brito;James Riffat;Ziwei Chen;Fatang Jiang;S. Riffat
生物质气凝胶是一种新型的环保过滤材料，可以去除空气中的细小颗粒物，减少空气污染。本研究旨在探讨生物质基气凝胶的空气过滤性能，通过在透明箱中的测试和验证在真实的房间燃烧的污迹棒作为粒子源。本研究中使用的生物质基气凝胶是由多糖、蛋白质和废弃农副产品（麦草）制成的。麦秆的添加有助于增加生物质基气凝胶的比表面积和孔结构的复杂性。与其他常用的商用过滤材料（包括高效微粒空气（HEPA）过滤器、外科口罩、普通布和二氧化硅气凝胶）相比，生物质气凝胶K0.9G1.8S3.6WS1.8显示出优异的性能，可去除环境中的PM 2.5（99.50%）和PM 10（99.40%）。当使用生物质基气凝胶时，滤芯样品具有比HEPA更小的体积和更简单的结构，以实现类似的过滤性能。通过真实的室内试验验证了生物质基气凝胶的过滤性能。目前的工作表明，生物质基气凝胶渗透应用在不同领域的高潜力，并提供了一种途径，再利用农业副产品。
Biomass-based aerogel is a new promising environmentally friendly filter material to remove fine particle matter and minimize air pollution. This study aims to investigate the air filtration properties of biomass-based aerogels via tests in a transparent chamber and verification in a real room with a burning smudge stick as a the particle source. The biomass-based aerogel used in this study is made of polysaccharides, protein and waste agricultural by-product (wheat straw). The addition of wheat straw contributes to the increase of surface area and complexity of the biomass-based aerogel pore structure. Compared with other commonly used commercial filtration materials including high-efficiency particulate air (HEPA) filter, surgical mask, regular cloth and silica aerogel, biomass-based aerogel K0.9G1.8S3.6WS1.8 shows excellent performance to remove PM 2.5 (99.50%) and PM 10 (99.40%) from the environment. When using the biomass-based aerogel, the filter core sample has a smaller volume and simpler structure than HEPA to achieve the similar filtration performance. The filtration performance of the biomass-based aerogels has been verified with a real room test. The current work demonstrates the high potential of biomass-based aerogels for infiltration application in different fields and provides an avenue to reuse agricultural by-products.