کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10145590 | 1646364 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electro-oxidation of indole-based squaraine dye: A combined in-situ spectroelectrochemical and theoretical study
ترجمه فارسی عنوان
الکترو اکسیداسیون رنگ اسکارآئین مبتنی بر اندول: یک مطالعه ترکیبی در محل مطالعه طیف الکتروشیمیایی و نظری
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کلمات کلیدی
ساندروین مبتنی بر اندول، الکترو اکسیداسیون، الکتروشیمیایی اشعه ماوراء بنفش در محل،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Indole-based squaraine (ISQ) is a promising group of electroactive dyes that have been widely used as organic photoelectric materials. However, their chemical structure is stable and will cause environmental pollution after being released into nature. Herein, the electrochemical redox chemistry of ISQ and its degradation mechanism on a Pt polycrystalline electrode was investigated. Many results are obtained from voltammograms, electrochemical in-situ UV-Vis and FTIR spectra and quantum chemical calculations: 1) while the potentials were below 1.2â¯V, ISQ was first oxidized to the radical anion with CO bond formation whereas oxidation shows fully electrochemical irreversibility. 2) an unexpected IR band of CO2 was collected at increasing potentials whereas a new absorption of 420â¯nm appeared in UV-Vis spectra, suggesting that cleavage of the CC double bond had occurred in the molecular structure of ISQ. 3) The oxidation products of ISQ were 1âmethylâ3,3âdimethylndoleniumâ2âone and 3âoxoâcyclobutâ1âenol anion. These findings provide useful information for better understanding the reaction mechanism and designing a suitable treatment strategy for dye pollutants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 827, 15 October 2018, Pages 73-78
Journal: Journal of Electroanalytical Chemistry - Volume 827, 15 October 2018, Pages 73-78
نویسندگان
Le-Xing You, Lu Wang, Le Zhang, Xiao-Xue Jiang, Su-Fang Qin, Christoper Rensing, Nan-Yan Fu, Jian-Jun Sun,