Resolving the Formation Mechanism of HONO via Ammonia-Promoted Photosensitized Conversion of Monomeric NO2 on Urban Glass Surfaces
文献类型：期刊论文
| 作者 | Liu, Jiangping2,3,4,5,6; Li, Bai12; Deng, Huifan1,3,4,5,6; Yang, Yan9,10,11; Song, Wei3,4,5,6; Wang, Xinming3,4,5,6; Luo, Yongming2,8; Francisco, Joseph S. S.7; Li, Lei12; Gligorovski, Sasho3,4,5,6 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2023-05-17 |
| 卷号 | 145期号:21页码:11488-11493 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.3c02067 |
| 英文摘要 | Understanding the formation processesof nitrous acid (HONO) iscrucial due to its role as a primary source of hydroxyl radicals (OH)in the urban atmosphere and its involvement in haze events. In thisstudy, we propose a new pathway for HONO formation via the UVA-light-promotedphotosensitized conversion of nitrogen dioxide (NO2) inthe presence of ammonia (NH3) and polycyclic aromatic hydrocarbons(PAHs, common compounds in urban grime). This new mechanism differsfrom the traditional mechanism, as it does not require the formationof the NO2 dimer. Instead, the enhanced electronic interactionbetween the UVA-light excited triplet state of PAHs and NO2-H2O/NO2-NH3-H2O significantly reduces the energy barrier and facilitatesthe exothermic formation of HONO from monomeric NO2. Furthermore,the performed experiments confirmed our theoretical findings and revealedthat the synergistic effect from light-excited PAHs and NH3 boosts the HONO formation with determined HONO fluxes of 3.6 x10(10) molecules cm(-2) s(-1) at 60% relative humidity (RH) higher than any previously reportedHONO fluxes. Intriguingly, light-induced NO2 to HONO conversionyield on authentic urban grime in presence of NH3 is unprecedented130% at 60% RH due to the role of NH3 acting as a hydrogencarrier, facilitating the transfer of hydrogen from H(2)Oto NO2. These results show that NH3-assistedUVA-light-induced NO2 to HONO conversion on urban surfacescan be a dominant source of HONO in the metropolitan area. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001014287900001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74323]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Francisco, Joseph S. S.; Li, Lei; Gligorovski, Sasho |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Kunming Univ Sci & Technol, Fac Environm Sci & Engn, Kunming 650500, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 7.Univ Penn, Dept Chem, Philadelphia, PA 19104 USA 8.Kunming Univ Sci & Technol, Fac Chem Engn, Kunming 650500, Peoples R China 9.GDUT, Synergy Innovat Inst, Shantou 515041, Peoples R China 10.Jieyang Branch, Chem & Chem Engn Guangdong Lab, Rongjiang Lab, Jieyang 515200, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jiangping,Li, Bai,Deng, Huifan,et al. Resolving the Formation Mechanism of HONO via Ammonia-Promoted Photosensitized Conversion of Monomeric NO2 on Urban Glass Surfaces[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2023,145(21):11488-11493. |
| APA | Liu, Jiangping.,Li, Bai.,Deng, Huifan.,Yang, Yan.,Song, Wei.,...&Gligorovski, Sasho.(2023).Resolving the Formation Mechanism of HONO via Ammonia-Promoted Photosensitized Conversion of Monomeric NO2 on Urban Glass Surfaces.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,145(21),11488-11493. |
| MLA | Liu, Jiangping,et al."Resolving the Formation Mechanism of HONO via Ammonia-Promoted Photosensitized Conversion of Monomeric NO2 on Urban Glass Surfaces".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 145.21(2023):11488-11493. |
入库方式： OAI收割
来源：广州地球化学研究所
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