A reusable material with high performance for removing NO at room temperature: performance, mechanism and kinetics

被引：14

作者：

Lu, Pei ^{[1
]}

Xing, Yi ^{[1
]}

Li, Caiting ^{[2
]}

Qing, Renpeng ^{[2
]}

Su, Wei ^{[1
]}

Liu, Nian ^{[3
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China

[2] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China

[3] Tech Univ Dresden, Fac Environm Sci, D-01069 Dresden, Germany

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2016年 / 6卷 / 10期

基金：

中国国家自然科学基金;

关键词：

SELECTIVE CATALYTIC-REDUCTION; ACTIVATED CARBON-FIBER; MNOX-CEO2 MIXED OXIDES; NH3; UREA; SCR; OXIDATION; SPINEL; OXYGEN; LA2O3;

D O I：

10.1039/c5cy01562f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Removing NO from the air with a reusable material at room temperature is challenging. In this study, a series of urea-MnOx/ACF and urea-x(CeO2-(1 - x) MnO2)/ACF materials were prepared and used for removing NO at room temperature. The results showed that 10% urea-8% (0.5CeO(2)-0.5MnO(2))/ACF yielded the highest NO conversion, which showed an NO conversion ratio above 90% with 1000 ppm NO in the initial mixed gases. Moreover, the NO conversion exceeded 98% when the NO concentration was 100 ppm in the initial mixed gases. More importantly, 10% urea-8% (0.5CeO(2)-0.5MnO(2))/ACF was stable even after it was regenerated by reloading with urea, demonstrating that the material could be easily reused and its high performance was maintained. Finally, the mechanism and kinetics of the NO removal was discussed.

引用

页码：3520 / 3528

页数：9

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