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| Comprehensive spectral analysis of reaction of three aldehydes with ammonium sulfate and glycine | |
| Gao, Yan1; Li, Tingyun1; Zheng, Wenjing2; Zhou, Zhimao2; Chen, Lixin3 | |
| 2022-12-15 | |
| Source Publication | ATMOSPHERIC ENVIRONMENT
 |
| ISSN | 1352-2310 |
| Volume | 291Pages:14 |
| Abstract | Light-absorbing brown carbon (BrC), a major contributor to global climate change, is widely studied. Compar-ative analysis showed that methylglyoxal (MG) tended to form a greater amount of aqueous BrC with AS/Gly/AS-Gly in a relatively short time, whereas 1,4-dioxane-2,5-diol (DD) tended to form darker BrC in the same reaction time. The absorption angstrom ngstro center dot m exponent (angstrom abs) over 250-400 nm and 400-480 nm in the absorption spectra combined with the index of recent autochthonous contribution (BIX), fluorescence index (FI), and humification index (HIX) in the fluorescence spectra, provided more information on the source of aqueous BrC. The absor-bance intensity order and the fluorescence intensity order were MG-AS-Gly > DD-AS-Gly > GX-AS-Gly and GX-AS-Gly > MG-AS-Gly > DD-AS-Gly, respectively. The reaction rate (K) of H2O2 oxidation and photodecompo-sition gradually increased from ultraviolet (UV) to visible (Vis) region. The short lifetime of aldehyde-amine mixtures indicates that imine BrC is photochemically unstable and easily dissolves under sunlight. The absor-bance and light decomposition rates were lowest in the GX-AS-Gly reaction system, indicating that the small amount of BrC formed by this system was more stable. The unsaturated double bonds gradually lengthened or shortened in the Maillard-type browning or aldol condensation reactions to form different numbers of product molecules. Furthermore, as these BrC reactions are strongly pH-dependent, it is necessary to measure (or control) the pH in the specific BrC system. Extensive laboratory spectroscopic comparative studies on these aqueous BrCs can be used to better understand the evolution of atmospheric BrC and its effects on climate. |
| Keyword | Brown carbon Ammonium sulfate Glycine 1 4-Dioxane-2 5-diol Methylglyoxal Glyoxal |
| DOI | 10.1016/j.atmosenv.2022.119390 |
| Language | 英语 |
| WOS Keyword | SECONDARY ORGANIC AEROSOL ; BROWN CARBON FORMATION ; FREE AMINO-ACIDS ; LIGHT-ABSORPTION ; OPTICAL-PROPERTIES ; ALPHA-DICARBONYLS ; MARINE AEROSOLS ; BLACK CARBON ; HUMIC-LIKE ; MATTER |
| Funding Project | Anhui Provincial Department of Education[KJ2021A1125] ; Industry-University-Research Cooperation Project of Bengbu University[00011034] ; Industry-University-Research Cooperation Project of Bengbu University[000092B2] ; Industry-University-Research Cooperation Project of Bengbu University[000092A7] ; Industry-University-Research Cooperation Project of Bengbu University[000092A8] ; School-Level Project of Bengbu University[BBXY2019KYQD04] ; School-Level Project of Bengbu University[2017ZR18] |
| WOS Research Area | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS Subject | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| Funding Organization | Anhui Provincial Department of Education ; Industry-University-Research Cooperation Project of Bengbu University ; School-Level Project of Bengbu University |
| WOS ID | WOS:000869099500001 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/55345 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Chen, Lixin |
| Affiliation | 1.Bengbu Univ, Anhui Prov Engn Lab Silicon Based Mat, Bengbu 233030, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Chinese Acad Nat Resources Econ, 37 Guanyingyuan St, Beijing 100035, Peoples R China |
| Recommended Citation GB/T 7714 | Gao, Yan,Li, Tingyun,Zheng, Wenjing,et al. Comprehensive spectral analysis of reaction of three aldehydes with ammonium sulfate and glycine[J]. ATMOSPHERIC ENVIRONMENT,2022,291:14. |
| APA | Gao, Yan,Li, Tingyun,Zheng, Wenjing,Zhou, Zhimao,&Chen, Lixin.(2022).Comprehensive spectral analysis of reaction of three aldehydes with ammonium sulfate and glycine.ATMOSPHERIC ENVIRONMENT,291,14. |
| MLA | Gao, Yan,et al."Comprehensive spectral analysis of reaction of three aldehydes with ammonium sulfate and glycine".ATMOSPHERIC ENVIRONMENT 291(2022):14. |
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