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Open AccessArticle

Mn/Ce Oxides Decorated Polyphenylene Sulfide Needle-Punching Fibrous Felts for Dust Removal and Denitration Application

by Ying Chen 1,†, Hongwei He 1,†, Shaohua Wu 2, Xin Ning 1, Fuxing Chen 1, Yanru Lv 1, Juan Yu 1 and Rong Zhou 1,*
1
Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, China
2
College of Textiles & Clothing, Qingdao University, Qingdao 266071, China
*
Author to whom correspondence should be addressed.
These two authors contributed equally to this work.
Polymers 2020, 12(1), 168; https://doi.org/10.3390/polym12010168
Received: 13 December 2019 / Revised: 1 January 2020 / Accepted: 5 January 2020 / Published: 9 January 2020
Development of a novel filter material is urgently required for replacing the high-cost flue gas purification technology in the simultaneous removal of both fine dust and Nitrogen oxides (NOx). In this study; polyphenylene sulfide (PPS) needle-punching fibrous felts (NPFF) were employed as the filter material to remove the fine dust; and in the meanwhile; Mn and Ce oxides were loaded onto the PPS NPFF as the catalyst for selective catalytic reduction of NOx with NH3. Two different pretreatment methods; i.e., sodium alginate (SA) deposition and plasma treatment; were employed to modify the PPS NPFF before the traditional impregnation and thermal treatment processes during the catalyst loading. The results showed that these two pretreatment methods both afforded the PPS NPFF with the enhanced loading rate and stability of Mn/Ce oxides compared to those without any pretreatments; which were significantly beneficial for the denitration application. Moreover; we found that both SA deposition and plasma pre-treated samples presented excellent dust-removal properties; and the filtration efficiency could reach 100% when the particle size of the fine particulates was above 4 μm. This study demonstrated that our Mn/Ce oxides decorated PPS NPFF have great potential to be applied in the fuel gas purification field; due to their stable structure; handling convenience; and excellent filtration efficiency; as well as high denitration performance. View Full-Text
Keywords: catalyst loading; sodium alginate deposition; plasma treatment; denitration; filtration efficiency catalyst loading; sodium alginate deposition; plasma treatment; denitration; filtration efficiency
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MDPI and ACS Style

Chen, Y.; He, H.; Wu, S.; Ning, X.; Chen, F.; Lv, Y.; Yu, J.; Zhou, R. Mn/Ce Oxides Decorated Polyphenylene Sulfide Needle-Punching Fibrous Felts for Dust Removal and Denitration Application. Polymers 2020, 12, 168.

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