کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8017275 | 1517217 | 2016 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrasensitive detection of a 1-pyrenecarboxylic acid by surface enhanced Raman scattering hot spot with reduced graphene oxide/silver nanoparticles composites
ترجمه فارسی عنوان
تشخیص حساسیت از یک اسید 1-پیرنکربوکیلیک با افزایش سطح محلول داغ پراکندگی رامان با کمترین ترکیبات نانوذرات گرافن / نقره
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
This manuscript demonstrated a simple and efficient method to detect 1-pyrenecarboxylic acid dissolved in water solution at nanoscale level via surface enhanced Raman scattering hot spot with reduced graphene oxide/silver nanoparticles (Ag-NPs) nanocomposites (RGO/Ag-NPs). Ag-NPs were attached in situ onto RGO surface with different concentrations of AgNO3 in the presence of aqueous solution of 1-pyrenecarboxylic acid. The morphology and structures of the as-prepared samples were characterised with FT-IR, UV-vis absorption, DLS, Zeta potentials, Raman spectroscopy, TEM and XRD. At higher AgNO3 concentration, Ag-NPs get aggregated onto the surface of RGO and created surface enhanced Raman spectroscopy (SERS) hot spot which detect 1-pyrenecarboxylic acid due to the greatly enhanced electromagnetic field. This novel concept can be extended for sensing different water pollutants including polycyclic aromatic hydrocarbons and benzene derivatives.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 171, 15 May 2016, Pages 137-141
Journal: Materials Letters - Volume 171, 15 May 2016, Pages 137-141
نویسندگان
El hadji Mamour Sakho, Oluwatobi S. Oluwafemi, Abhijit Saha, Sabu Thomas, Nandakumar Kalarikkal,