کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
72321 49017 2016 5 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Intercalated methylene blue between calcium niobate nanosheets by ESD technique for electrocatalytic oxidation of ascorbic acid
ترجمه فارسی عنوان
متيلن آبی intercalated بين نانوذرات نايوبات کلسيم با استفاده از روش ESD برای اکسايش الکتروکاتاليستی اسيد آسکوربيک
کلمات کلیدی
متیلن آبی؛ پروسکایت نوع دیون-جاکوبسن؛ الکترواستاتیک رسوب خود مونتاژ؛ اسید اسکوربیک؛ سنسورها
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• MB cations have been inserted into the interlayer of calcium niobate by ESD method.
• Self-assembly between MB+ and Ca2Nb3O10– nanosheets can be finished in a few minutes.
• MB cations were found to be tilted about 46° against calcium niobate nanosheets.
• MB–Ca2Nb3O10 shows good electrocatalytic activity toward ascorbic acid oxidation.

A hybrid assembly of cationic methylene blue (MB) with calcium niobate (Ca2Nb3O10–) nanosheets was fabricated by electrostatic self-assembly deposition (ESD) method. The obtained MB–Ca2Nb3O10 nanocomposites were characterized by a variety of analytical techniques such as XRD, FTIR, SEM and TG–DTA. Interlayer spacings determined from XRD patterns reveal that MB+ cation form an inclined monolayer arrangement with its long molecular axis being tilted approximately 46° against Ca2Nb3O10– nanosheets. The intercalated MB cations showed a fine diffusion-controlled electrochemical redox process and exhibited excellent electrocatalytic activity towards ascorbic acid (AA) oxidation in neutral media. Differential pulse voltammetry studies demonstrated that the intercalation nanocomposite detects AA linearly over a concentration range of 1.0 × 10−4 M to 8.3 × 10−3 M with the detection limit of 4.6 × 10−5 M at a signal-to-noise ratio of 3.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 221, February 2016, Pages 123–127
نویسندگان
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