Acidity of Atmospheric Waters Induces Enhanced H2O2 Production through Photosensitized Chemistry of Phenolic Substances
文献类型：期刊论文
| 作者 | Xie, Yingxin2,3,4,5,6; Deng, Qingxin2,3,4,5,6; He, Bowen2,3,4,5,6; Liu, Siyu2,3,4,5,6; He, Jiazhuo2,3,4,5; Wang, Yiqun2,3,4,5; Li, Xue7; Yu, Zhiqiang2,3,4,5,6; Pang, Hongwei1,2,3,4,5; Gligorovski, Sasho2,3,4,5,8 |
| 刊名 | ACS EARTH AND SPACE CHEMISTRY
 |
| 出版日期 | 2025-01-07 |
| 卷号 | 9期号:1页码:169-177 |
| 关键词 | atmospheric chemistry aerosols clouds mass spectrometry quantum chemistry |
| ISSN号 | 2472-3452 |
| DOI | 10.1021/acsearthspacechem.4c00318 |
| 英文摘要 | Hydrogen peroxide (H2O2) is known to convert SO2 to sulfuric acid and acts as a dominant reservoir of highly reactive hydroxyl radical (OH) in atmospheric waters (cloud, fog, rain, and aerosol liquid water). Here, we conclusively demonstrate that photosensitized oxidation of phenolic substances (catechol, o-cresol, and guaiacol) by the excited triplet state of nonphenolic compound (3,4-dimethoxybenzaldehyde, DMB) represents an unrecognized significant source of H2O2. Intriguingly, the highest H2O2 formation rate, (3.43 +/- 0.14) x 10-9 M s-1, and H2O2 yield (Phi H2O2 ), (7.68 +/- 0.08) x 10-1, were observed by photosensitized chemistry of catechol at low pH values (2.50) typical of cloud and aerosol water. The quantum chemical calculations revealed that the fraction of the protonated triplet state of DMB increases with a pH decrease, resulting in a faster formation of H2O2. A detailed mechanism was proposed describing the formation of H2O2 from the photosensitized reaction. |
| WOS研究方向 | Chemistry ; Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001391420100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81815]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Pang, Hongwei; Gligorovski, Sasho |
| 作者单位 | 1.Weizmann Inst Sci, Dept Earth & Planetary Sci, IL-7610001 Rehovot, Israel 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resource, 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, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Jinan Univ, Inst Mass Spectrometry & Atmospher Environm, Guangzhou 510632, Peoples R China 8.Univ St Kliment Ohridski Bitola, Bitola 7000, North Macedonia |
| 推荐引用方式 GB/T 7714 | Xie, Yingxin,Deng, Qingxin,He, Bowen,et al. Acidity of Atmospheric Waters Induces Enhanced H2O2 Production through Photosensitized Chemistry of Phenolic Substances[J]. ACS EARTH AND SPACE CHEMISTRY,2025,9(1):169-177. |
| APA | Xie, Yingxin.,Deng, Qingxin.,He, Bowen.,Liu, Siyu.,He, Jiazhuo.,...&Gligorovski, Sasho.(2025).Acidity of Atmospheric Waters Induces Enhanced H2O2 Production through Photosensitized Chemistry of Phenolic Substances.ACS EARTH AND SPACE CHEMISTRY,9(1),169-177. |
| MLA | Xie, Yingxin,et al."Acidity of Atmospheric Waters Induces Enhanced H2O2 Production through Photosensitized Chemistry of Phenolic Substances".ACS EARTH AND SPACE CHEMISTRY 9.1(2025):169-177. |
入库方式： OAI收割
来源：广州地球化学研究所
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