文献类型：期刊文献

英文题名：Removal efficiency of an integrated adsorption/photocatalysis system for reducing low concentrations of nitrogen oxides in microenvironments of museums for cultural relics conservation

作者：Wang, Dawei[1];Zhang, Danian[1];Wu, Yan[1];Wei, Hua[1];Luo, Jing[1];Wu, Laiming[2];Xu, Fangyuan[2];Xiu, Guangli[1]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai, Peoples R China;[2]Shanghai Museum, Res Lab Conservat & Archaeol, Shanghai, Shanghai, Peoples R China

年份：2016

卷号：25

期号：8

起止页码：1185

外文期刊名：INDOOR AND BUILT ENVIRONMENT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000389051600002)】；

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was financially supported by the Ministry of Science and Technology of the People's Republic China (2006BAK20B01, 2010BAK67B15), the Fundamental Research Funds for the Central Universities (WB1113005).

语种：英文

外文关键词：Museum; Indoor air purification; Bamboo charcoal; Nitrogen oxides; Integrated purification

摘要：Nitrogen oxides (NOx) could pose a threat to the conservation of cultural relics and could also enhance the corrosion induced by other pollutants such as sulphur dioxides and organic acids. The NOx removal rate was studied through a combination of adsorption onto bamboo charcoal and photocatalysis. The integrated NOx removal efficiency by both methods was evaluated in both lab and pilot scales. The studies have shown that the direct use of biomass can remove moderate level of NOx; while higher level of NOx removal was achieved by using bamboo charcoal carbonized at 520?. The photocatalytic oxidation of NOx was found to be well fit with Langmuir-Hinshelwood model. The different carriers of photocatalysis combined with adsorbents were compared, and the optimised process was shown to reduce the nitrogen monoxide and nitrogen dioxide level to 2.76 and 0.68 mu g/m(3), respectively, in 20% relative humidity (RH). An integrated device was developed, and the results have demonstrated that the combined technologies of photocatalysis and adsorption can have great removal potential for reducing NOx and therefore in improving the air quality under different RH conditions.