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Mei Q, Qiu Z, Jiang J, Li M, Wang Q, He M. Ozonolysis of ketoprofen in polluted water: Reaction pathways, kinetics, removal efficiency, and health effects. J Environ Sci (China) 2025; 147:451-461. [PMID: 39003061 DOI: 10.1016/j.jes.2023.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 07/15/2024]
Abstract
Ketoprofen (KET), as a non-steroidal anti-inflammatory drug frequently detected in aqueous environments, is a threat to human health due to its accumulation and low biodegradability, which requires the transformation and degradation of KET in aqueous environments. In this paper, the reaction process of ozone-initiated KET degradation in water was investigated using density functional theory (DFT) method at the M06-2X/6-311++g(3df,2p)//M06-2X/6-31+g(d,p) level. The detailed reaction path of KET ozonation is proposed. The thermodynamic results show that ozone-initiated KET degradation is feasible. Under ultraviolet irradiation, the reaction of ozone with water can also produce OH radicals (HO·) that can react with KET. The degradation reaction of KET caused by HO· was further studied. The kinetic calculation illustrates that the reaction rate (1.99 × 10-1 (mol/L)-1 sec-1) of KET ozonation is relatively slow, but the reaction rate of HO· reaction is relatively high, which can further improve the degradation efficiency. On this basis, the effects of pollutant concentration, ozone concentration, natural organic matter, and pH value on degradation efficiency under UV/O3 process were analyzed. The ozonolysis reaction of KET is not sensitive to pH and is basically unaffected. Finally, the toxicity prediction of oxidation compounds produced by degradation reaction indicates that most of the degradation products are harmless, and a few products containing benzene rings are still toxic and have to be concerned. This study serves as a theoretical basis for analyzing the migration and transformation process of anti-inflammatory compounds in the water environment.
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Affiliation(s)
- Qiong Mei
- School of Land Engineering, Shaanxi Key Laboratory of Land Consolidation, Chang'an University, Xi'an 710064, China; School of Water and Environment, Chang'an University, Xi'an 710054, China
| | - Zhaoxu Qiu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Jinchan Jiang
- Weihai Water Conservancy Service Center, Weihai 264200, China
| | - Mingxue Li
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Qizhao Wang
- School of Water and Environment, Chang'an University, Xi'an 710054, China.
| | - Maoxia He
- Environment Research Institute, Shandong University, Qingdao 266237, China.
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Fan H, Ma J, Zhu L, Liu B, Liu F, Shan X, Wang Z, Wang L. Unusual Diradical Intermediates in Ozonolysis of Alkenes: A Combined Theoretical and Synchrotron Radiation Photoionization Mass Spectrometric Study on Ozonolysis of Alkyl Vinyl Ethers. J Phys Chem A 2022; 126:8021-8027. [DOI: 10.1021/acs.jpca.2c04382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hanlin Fan
- School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jun Ma
- School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long Zhu
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Bingzhi Liu
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Fuyi Liu
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Xiaobin Shan
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Zhandong Wang
- National Synchrotron Radiation Laboratory, University of Sciences and Technology of China, Hefei, 230029, China
| | - Liming Wang
- School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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Lv C, Du L, Tang S, Tsona NT, Liu S, Zhao H, Wang W. Matrix isolation study of the early intermediates in the ozonolysis of selected vinyl ethers. RSC Adv 2017. [DOI: 10.1039/c7ra01011g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The Criegee mechanism of the ozonolysis reaction of vinyl ethers has been observed by matrix isolation FTIR spectroscopy.
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Affiliation(s)
- Chen Lv
- Environment Research Institute
- Shandong University
- China
| | - Lin Du
- Environment Research Institute
- Shandong University
- China
| | - Shanshan Tang
- Environment Research Institute
- Shandong University
- China
| | | | - Shijie Liu
- Environment Research Institute
- Shandong University
- China
| | - Hailiang Zhao
- Environment Research Institute
- Shandong University
- China
| | - Wenxing Wang
- Environment Research Institute
- Shandong University
- China
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4
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Cao H, Han D, Li M, Li X, Zhang S, Ding Y, He M, Wang W. Theoretical study on the nitrate radical oxidation of methyl vinyl ether. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Han D, Cao H, Li M, Li X, Zhang S, He M, Hu J. Computational Study on the Mechanisms and Rate Constants of the Cl-Initiated Oxidation of Methyl Vinyl Ether in the Atmosphere. J Phys Chem A 2015; 119:719-27. [DOI: 10.1021/jp5112839] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Dandan Han
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Haijie Cao
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Mingyue Li
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Xin Li
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Shiqing Zhang
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Maoxia He
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
| | - Jingtian Hu
- Environment Research
Institute, Shandong University, Jinan 250100, People’s Republic of China
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6
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Theoretical studies on the mechanisms and rate constants for the hydroxylation of n-butyl, iso-butyl and tert-butyl vinyl ethers in atmosphere. Struct Chem 2014. [DOI: 10.1007/s11224-014-0517-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Han D, Cao H, Li J, Li M, He M, Hu J. Computational study on the mechanisms and rate constants of the OH-initiated oxidation of ethyl vinyl ether in atmosphere. CHEMOSPHERE 2014; 111:61-69. [PMID: 24997901 DOI: 10.1016/j.chemosphere.2014.03.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 02/23/2014] [Accepted: 03/07/2014] [Indexed: 06/03/2023]
Abstract
The hydroxylation reactions of ethyl vinyl ether (EVE) in the present of O2 and NO are analyzed by using MPWB1K/6-311++G(3df,2p)//MPWB1K/6-31+G(d,p) level of theory. According to the calculated thermodynamic data, the detailed reaction mechanisms of EVE and OH are proposed. All of the ten possible reaction pathways are discussed. The major products of the title reaction are ethyl formate and formaldehyde, which is in accordance with experimental detection. The rate constants of the primary reactions over the temperature of 250-400K and the pressure range of 100-2000Torr are computed by employing MESMER program. At 298K and 760Torr, OH-addition channels are predominate and the total rate constant is ktot=4.53×10(-11)cm(3)molecule(-1)s(-1). The Arrhenius equation is obtained as ktot=6.27×10(-12)exp(611.5/T), according to the rate constants given at different temperatures. Finally, the atmospheric half life of EVE with respect to OH is estimated to be 2.13h.
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Affiliation(s)
- Dandan Han
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Haijie Cao
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Jing Li
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Mingyue Li
- Environment Research Institute, Shandong University, Jinan 250100, PR China
| | - Maoxia He
- Environment Research Institute, Shandong University, Jinan 250100, PR China.
| | - Jingtian Hu
- Environment Research Institute, Shandong University, Jinan 250100, PR China
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Sun Y, Cao H, Han D, Li J, He M. Reactions of n-butyl acrylate and ethyl methacrylate with ozone in the gas phase. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.04.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bai J, Sun X, Zhang C, Zhao Y, Gong C. The atmospheric degradation reaction of dehydroabietic acid (DHAA) initiated by OH radicals and O3. CHEMOSPHERE 2013; 92:933-940. [PMID: 23561857 DOI: 10.1016/j.chemosphere.2013.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 02/26/2013] [Accepted: 03/04/2013] [Indexed: 06/02/2023]
Abstract
Dehydroabietic acid (DHAA) is the major marker compound emitted from the burning of conifer. In this paper, the atmospheric mechanism of DHAA initiated by OH radicals and O3 was studied at the MPWB1K/6-31+G(d,p)//MPWB1K/6-311+G(3df,2p) level. For OH radicals, two types of reactions including OH addition and hydrogen abstraction were investigated. The cycloaddition reactions of O3 were considered. The rate constants over the temperature range of 200-400 K were calculated with the Rice-Ramsperger-Kassel-Marcus (RRKM) theory. At 298 K and under the pressure of 760 Torr, the whole rate constants are 0.89×10(-11) cm(3) molecule(-1) s(-1) and 2.29×10(-20) cm(3) molecule(-1) s(-1) for DHAA+OH and DHAA+O3, respectively. This study can be regarded as an attempt to investigate the OH-initiated and O3-initiated photochemical reaction mechanisms of DHAA in the atmosphere.
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Affiliation(s)
- Jing Bai
- Environment Research Institute, Shandong University, Jinan 250100, PR China
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