| Modeling the response of a control-released ion-selective electrode and employing it for the study of permanganate oxidation kinetics | |
Song, Dean; Liang, Rongning ; Jiang, Xiaohua; Sun, Huiqing; Kong, Fanyu; Lv, Bo; Fang, Qiannan; Qin, Wei
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| 发表期刊 | ANALYTICAL METHODS
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| ISSN | 1759-9660 |
| 2018-01-28 | |
| 卷号 | 10期号:4页码:467-473 |
| 关键词 | MEMBRANE ELECTRODES GOLD NANOPARTICLES DETECTION LIMIT MECHANISM FLUXES CHLORINATION GENERATION |
| 研究领域 | Chemistry, Analytical ; Food Science & Technology ; Spectroscopy |
| DOI | 10.1039/c7ay02735d |
| 产权排序 | [Song, Dean; Sun, Huiqing; Kong, Fanyu; Lv, Bo; Fang, Qiannan] Chinese Acad Agr Sci, Tobacco Res Inst, State Agr Minist, Lab Qual & Safety Risk Assessment Tobacco, Qingdao 266101, Peoples R China; [Song, Dean; Liang, Rongning; Jiang, Xiaohua; Qin, Wei] Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China |
| 作者部门 | 海岸带环境过程实验室 |
| 英文摘要 | Although polymeric membrane ion-selective electrodes (ISEs) based on outward ion fluxes have been found analytically useful, there is still a lack of a theoretical framework for this detection system. In this study, we attempted to model the response of this kind of permanganate ISE and employed this ISE to analyze the rapid MnO4-/H2O2 reaction. This response is attributed to H2O2 oxidation with MnO4- that is released from the inner solution to the membrane surface layer. The results show that the experimental data can be fitted well to the proposed model that is elucidated mathematically from the viewpoint of chemical kinetics. The second-order rate constant is determined at a near neutral pH and is in agreement with the acid dissociation law to provide the specific value of 370 M (-1) s (-1). The kinetic mechanism was then investigated by performing DFT calculations. Via analysis of the Mn-O bond length and the HOMO orbital, it has been found that the studied redox system functions similarly as the so-called hydrogen abstraction mechanism with an energy barrier of 24.5 kcal mol(-1). This study is considered to be the first report on the simulation of MnO4- attack at the O-H bond. On the basis of the transition state theory and previous studies on MnO4- attack at the C = C and C-H bonds, the relationship between the experimental rate constant and computational energy barrier is finally constructed. The result indicates the validity of our proposed method and makes the control-released ISE a very promising platform to study the kinetics. |
| 文章类型 | Article |
| 资助机构 | Qingdao Postdoctoral Application Research Project [2016105] ; Agricultural Science and Technology Innovation Program [ASTIPTRIC06] ; National Natural Science Foundation of China [41576106] ; Science and Technology Project of Yantai [2014ZH086] ; Youth Innovation Promotion Association of CAS [2014190] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | MEMBRANE ELECTRODES ; GOLD NANOPARTICLES ; DETECTION LIMIT ; MECHANISM ; FLUXES ; CHLORINATION ; GENERATION |
| 研究领域[WOS] | Chemistry ; Food Science & Technology ; Spectroscopy |
| WOS记录号 | WOS:000423469000008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24403 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Agr Sci, Tobacco Res Inst, State Agr Minist, Lab Qual & Safety Risk Assessment Tobacco, Qingdao 266101, Peoples R China; 2.Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC,YICCAS, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Dean,Liang, Rongning,Jiang, Xiaohua,et al. Modeling the response of a control-released ion-selective electrode and employing it for the study of permanganate oxidation kinetics[J]. ANALYTICAL METHODS,2018,10(4):467-473. |
| APA | Song, Dean.,Liang, Rongning.,Jiang, Xiaohua.,Sun, Huiqing.,Kong, Fanyu.,...&Qin, Wei.(2018).Modeling the response of a control-released ion-selective electrode and employing it for the study of permanganate oxidation kinetics.ANALYTICAL METHODS,10(4),467-473. |
| MLA | Song, Dean,et al."Modeling the response of a control-released ion-selective electrode and employing it for the study of permanganate oxidation kinetics".ANALYTICAL METHODS 10.4(2018):467-473. |
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