Molecular Insights into NO-Promoted Sulfate Formation on Model TiO2 Nanoparticles with Different Exposed Facets
文献类型：期刊论文
| 作者 | Yang, Weiwei; Chen, Min; Xiao, Wen; Guo, Yanbing; Ding, Jun; Zhang, Lizhi; He, Hong
|
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2018-12-18 |
| 卷号 | 52期号:24页码:14110-14118 |
| ISSN号 | 0013-936X |
| 文献子类 | Article |
| 英文摘要 | In this study, molecular insights into NO-promoted (S)O2 oxidation on model TiO2 with well-defined (001), (010), and (101) facets are investigated in the laboratory. The adsorbed SO2 is significantly promoted to transform into sulfate by the coexisting NO on the three facets. The appearance of active oxygen species indicates an active oxygen species-initiated NO oxidation. The resulting NO2 acts as an oxidant to convert adsorbed sulfite on hydroxyls to sulfate species. The (101) facet presents the best performance in the NO-promoted sulfate formation possibly owing to its desirable structure to accommodate SO32-, NO2, and molecular water. The uptake coefficient (gamma(tau)) of SO2 increases by the coexistence of NO on the (001) facet at 0% RH and is relative humidity (RH) dependent, which first decreases from 0% RH to 32% RH but then increases in the range of 32%-80% RH. The probable explanation is the combined contribution of the blocking effect of water and the hydration of SO2. The finding in this study provides insight into the possibility of its occurrence on common mineral dusts and requires further investigation. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40819]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Yang, Weiwei,Chen, Min,Xiao, Wen,et al. Molecular Insights into NO-Promoted Sulfate Formation on Model TiO2 Nanoparticles with Different Exposed Facets[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2018,52(24):14110-14118. |
| APA | Yang, Weiwei.,Chen, Min.,Xiao, Wen.,Guo, Yanbing.,Ding, Jun.,...&He, Hong.(2018).Molecular Insights into NO-Promoted Sulfate Formation on Model TiO2 Nanoparticles with Different Exposed Facets.ENVIRONMENTAL SCIENCE & TECHNOLOGY,52(24),14110-14118. |
| MLA | Yang, Weiwei,et al."Molecular Insights into NO-Promoted Sulfate Formation on Model TiO2 Nanoparticles with Different Exposed Facets".ENVIRONMENTAL SCIENCE & TECHNOLOGY 52.24(2018):14110-14118. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。