Cobalt/Peracetic Acid: Advanced Oxidation of Aromatic Organic Compounds by Acetylperoxyl Radicals
文献类型：期刊论文
| 作者 | Kim, Juhee3; Du, Penghui2; Liu, Wen1; Luo, Cong3; Zhao, He2; Huang, Ching-Hua3 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2020-04-21 |
| 卷号 | 54期号:8页码:5268-5278 |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.0c00356 |
| 英文摘要 | Peracetic acid (PAA) is increasingly used as an alternative disinfectant and its advanced oxidation processes (AOPs) could be useful for pollutant degradation. Co(II) or Co(III) can activate PAA to produce acetyloxyl (CH3C(O)O-center dot) and acetylperoxyl (CH3C(O)O-center dot) radicals with little (OH)-O-center dot radical formation, and Co(II)/Co(III) is cycled. For the first time, this study determined the reaction rates of PAA with Co(II) (k(PAA, Co(II)) = 1.70 x 10(1) to 6.67 x 10(2) M-1.s(-1)) and Co(III) (k(PAA, Co(III)) = 3.91 x 10(0) to 4.57 x 10(2) M-1.s(-1)) ions over the initial pH 3.0-8.2 and evaluated 30 different aromatic organic compounds for degradation by Co/PAA. In-depth investigation confirmed that CH3C(O)O-center dot is the key reactive species under Co/PAA for compound degradation. Assessing the structure-activity relationship between compounds' molecular descriptors and pseudo-first-order degradation rate constants (k(PAA)'. in s(-1)) by Co/PAA showed the number of ring atoms, E-HOMO, softness, and ionization potential to be the most influential, strongly suggesting the electron transfer mechanism from aromatic compounds to the acetylperoxyl radical. The radical production and compound degradation in Co/PAA are most efficient in the intermediate pH range and can be influenced by water matrix constituents of bicarbonate, phosphate, and humic acids. These results significantly improve the knowledge regarding the acetylperoxyl radical from PAA and will be useful for further development and applications of PAA-based AOPs. |
| WOS关键词 | WASTE-WATER DISINFECTION ; PERACETIC-ACID ; RATE CONSTANTS ; HYDROXYL RADICALS ; PHENOL DEGRADATION ; HYDROGEN-PEROXIDE ; UV/PERACETIC ACID ; QSAR MODELS ; CONTAMINANTS ; SULFATE |
| 资助项目 | National Science Foundation[CHE-1609361] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000527738300060 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Science Foundation |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/40292]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Huang, Ching-Hua |
| 作者单位 | 1.Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Div Environm Technol & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA |
| 推荐引用方式 GB/T 7714 | Kim, Juhee,Du, Penghui,Liu, Wen,et al. Cobalt/Peracetic Acid: Advanced Oxidation of Aromatic Organic Compounds by Acetylperoxyl Radicals[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2020,54(8):5268-5278. |
| APA | Kim, Juhee,Du, Penghui,Liu, Wen,Luo, Cong,Zhao, He,&Huang, Ching-Hua.(2020).Cobalt/Peracetic Acid: Advanced Oxidation of Aromatic Organic Compounds by Acetylperoxyl Radicals.ENVIRONMENTAL SCIENCE & TECHNOLOGY,54(8),5268-5278. |
| MLA | Kim, Juhee,et al."Cobalt/Peracetic Acid: Advanced Oxidation of Aromatic Organic Compounds by Acetylperoxyl Radicals".ENVIRONMENTAL SCIENCE & TECHNOLOGY 54.8(2020):5268-5278. |
入库方式： OAI收割
来源：过程工程研究所
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