کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7882690 | 1509612 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Green synthesis of dimension-controlled silver nanoparticle-graphene oxide with in situ ultrasonication
ترجمه فارسی عنوان
سنتز سبز نانوذرات نقره ای گرافن با اکسید نقره با ابعاد نوری با سونوگرافی در محل
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کلمات کلیدی
نانوذرات نقره، اکسید گرافن، سونوگرافی، ویتامین سی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
A green chemical approach to control the dimensions of Ag nanoparticle-decorated graphene oxide (AgNP-GO) composites was proposed by in situ ultrasonication of a mixture of AgNO3 and GO solution with the assistance of vitamin C acting as an environmentally friendly reducing agent at room temperature. The AgNP-GO composites were characterized by X-ray diffraction, transmission electron microscopy, energy-dispersive spectroscopy, Fourier transform infrared spectroscopy, Raman spectra and ultraviolet-visible absorption spectra. The results demonstrated that Ag nanoparticles with an average diameter of â¼15Â nm were uniformly dispersed on the surface of GO nanosheets by in situ ultrasonication of 1Â min with vitamin C. Increasing the ultrasonication times resulted in Ag nanoparticles with tunable dimensions ranging from 15 to 55Â nm being formed on the surface of GO nanosheets. The amount of silver nitrate and the ultrasonication time play a key role in the control of the dimension of Ag nanoparticles on GO, and a formation mechanism of the as-prepared AgNP-GO composites is proposed. This study provides a guide to controlling the dimensions of AgNP-GO composites, which may hold promise as advanced materials for various analytical applications such as catalysis, sensors and microchips.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 64, February 2014, Pages 326-332
Journal: Acta Materialia - Volume 64, February 2014, Pages 326-332
نویسندگان
K.S. Hui, K.N. Hui, D.A. Dinh, C.H. Tsang, Y.R. Cho, Wei Zhou, Xiaoting Hong, Ho-Hwan Chun,