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| Cobalt/Peracetic Acid: Advanced Oxidation of Aromatic Organic Compounds by Acetylperoxyl Radicals | |
| Kim, Juhee1; Du, Penghui2; Liu, Wen3; Luo, Cong1; Zhao, He2; Huang, Ching-Hua1 | |
| 2020-04-21 | |
| Source Publication | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| ISSN | 0013-936X |
| Volume | 54Issue:8Pages:5268-5278 |
| Abstract | 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. |
| DOI | 10.1021/acs.est.0c00356 |
| Language | 英语 |
| WOS Keyword | WASTE-WATER DISINFECTION ; PERACETIC-ACID ; RATE CONSTANTS ; HYDROXYL RADICALS ; PHENOL DEGRADATION ; HYDROGEN-PEROXIDE ; UV/PERACETIC ACID ; QSAR MODELS ; CONTAMINANTS ; SULFATE |
| Funding Project | National Science Foundation[CHE-1609361] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| Funding Organization | National Science Foundation |
| WOS ID | WOS:000527738300060 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/40293 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Huang, Ching-Hua |
| Affiliation | 1.Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA 2.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Div Environm Technol & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China |
| Recommended Citation 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. |
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