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Emulsion templated amino functionalised polymeric monolith filter for innovative air purification technology
Journal of Porous Materials ( IF 2.5 ) Pub Date : 2020-03-11 , DOI: 10.1007/s10934-019-00856-1
Sowndarya Ramachandran , Sheeja Rajiv

Due to deteriorating air quality, air pollution has become one of the most serious environmental issue especially in urban localities. Therefore, in the current study we have focused on a new route for the efficient capture of CO2 and PM2.5 from the automobile exhaust smoke of light motor vehicle with the aid of amino functionalised high internal phase emulsion (HIPE) polymeric monolith. The Poly (Styrene-co-methyl methacrylate) monolith (PSM) was synthesised by copolymerising styrene with methyl methacrylate and cross linked with divinylbenzene. The –NH2 functionalization of the synthesised PSM monolith was carried out with ethylenediamine. The amino functionalised porous hydrophobic monolith (APSM) comprising of voids (cavity spaces) and pores (tiny openings) in the range of 3.0–7.4 µm and 1.1–2.4 µm respectively exhibited excellent thermal stability up to 323 °C. Capturing efficiency of the porous monolith filter for CO2 and PM2.5 was found to be 73% and 77.2% respectively. The filter also demonstrated outstanding dust loading capacity with a reduced pressure drop. Good resistance and quality factor value proved the viability of the membrane to act as an air filter. Regeneration capacity of the filter was also studied to demonstrate the effective filtration on continuous usage.



中文翻译:

乳液模板氨基官能化聚合物整体式过滤器,用于创新的空气净化技术

由于空气质量恶化,空气污染已经成为最严重的环境问题之一,尤其是在城市地区。因此,在当前的研究中,我们集中于一种新的途径,借助氨基官能化的高内相乳液(HIPE)聚合物整体结构,可以有效地从轻型汽车的汽车尾气中捕获CO 2和PM 2.5。通过使苯乙烯与甲基丙烯酸甲酯共​​聚并与二乙烯基苯交联来合成聚苯乙烯-甲基丙烯酸甲酯共​​聚体(PSM)。–NH 2用乙二胺对合成的PSM整体进行功能化。氨基官能化的多孔疏水整料(APSM)分别由范围在3.0-7.4 µm和1.1-2.4 µm的空隙(空腔)和孔(微小的开口)组成,在323°C的温度下具有出色的热稳定性。发现多孔整体过滤器对CO 2和PM 2.5的捕获效率分别为73%和77.2%。该过滤器还具有出色的粉尘承载能力,并具有降低的压降。良好的电阻和品质因数值证明了该膜可用作空气过滤器的可行性。还研究了过滤器的再生能力,以证明连续使用时能有效过滤。

更新日期:2020-03-11
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