Song, Dean; Liang, Rongning
; Jiang, Xiaohua; Sun, Huiqing; Kong, Fanyu; Lv, Bo; Fang, Qiannan; Qin, Wei发表期刊ANALYTICAL METHODS
ISSN1759-9660
2018-01-28
卷号10期号:4页码:467-473
关键词MEMBRANE ELECTRODESGOLD NANOPARTICLESDETECTION LIMITMECHANISMFLUXESCHLORINATIONGENERATION
研究领域Chemistry, Analytical; Food Science & Technology; Spectroscopy
DOI10.1039/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
引用统计被引频次：5[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24403
专题中科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
中科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 7714Song, 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.
APASong, 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.
MLASong, 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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