Direct Formation of Electronic Excited N02 Contributes to the High Yield of HONO during Photosensitized Renoxification

Hongyu Jiang; Fengxia Bao; Jinzhao Wang

首页> 外文期刊>Environmental Science & Technology: ES&T >Direct Formation of Electronic Excited N02 Contributes to the High Yield of HONO during Photosensitized Renoxification

【24h】

Direct Formation of Electronic Excited N02 Contributes to the High Yield of HONO during Photosensitized Renoxification

机译：Direct Formation of Electronic Excited N02 Contributes to the High Yield of HONO during Photosensitized Renoxification

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Photosensitized renoxification of HN03 is found to produce HONO in an unexpectedly high yield, which has been considered an important source for atmospheric HONO. Conventionally, the production of HONO is ascribed to the secondary photolysis of the primarily formed N02. In this study, by using humic acid (HA) as a model environmental photosensitizer, we provide evidence of the direct formation of N02 in its electronic excited state (N02*) as a key intermediate during the photosensitizing renoxification of HN03. Moreover, the high HONO yield originates from the heterogeneous reaction of the primarily formed N02* with the co-adsorbed water molecules on HA. Such a mechanism is supported by the increase of the product selectivity of HONO with relative humidity. Further luminescence measurements demonstrate clearly the occurrence of an electronic excited state (N02*) from photolysis of adsorbed HN03 on HA. This work deepens our understanding of the formation of atmospheric HONO and gives insight into the transformation of RNS.

著录项

来源
《Environmental Science & Technology: ES&T》 |2023年第30期|11144-11151|共8页
作者
Hongyu Jiang; Fengxia Bao; Jinzhao Wang;
展开▼
作者单位

Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, CAS Research/ Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;

Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, CAS Research/ Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境科学、安全科学;
关键词
HONO; nitrate; reactive nitrogen species; electronic excited NO?; atmospheric photochemistry;

Direct Formation of Electronic Excited N02 Contributes to the High Yield of HONO during Photosensitized Renoxification

摘要

著录项

相关主题

期刊订阅