کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11011434 | 1802873 | 2019 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Green sonochemical synthesis of few-layer graphene in instant coffee
ترجمه فارسی عنوان
سنتز سونوشیمیک سبز گرافن چند لایه در قهوه فوری
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
گرافن، سونوگرافی، لایه برداری فاز مایع، سبز،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
In this work, we reported for the first time the use of bath sonication of graphite in instant coffee to produce few-layered graphene flakes. The sonication of graphene in instant coffee allows facile production of graphene flakes in a green medium and avoids the application of commonly used organic exfoliating solvents such as Dimethylformamide or N, N methyl pyrrolidone. We verified the presence of graphene flakes in the resulting supernatant using local maximum UV spectrum (269â¯nm) and performed thickness and length measurements of said graphene flakes by atomic force microscopy and transmission electron microscopy. The defect and purity of exfoliated graphene flakes were investigated using Raman spectroscopy (ID/IGâ¯=â¯0.85) and X-ray photon spectroscopy (C/Oâ¯=â¯2.6) meanwhile Fourier transform infrared spectroscopy was used to identify the functional group attached to graphene. The production of graphene flakes in coffee was shown to have a time exponent factor of 1.07, which impressively is higher than the time exponent factor for typical sonication in a solvent and surfactant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 222, 15 January 2019, Pages 11-19
Journal: Materials Chemistry and Physics - Volume 222, 15 January 2019, Pages 11-19
نویسندگان
Abu Hannifa Abdullah, Zulhelmi Ismail, Anis Sakinah Zainal Abidin, Kamal Yusoh,