کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1554389 998783 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of chloroform sensor based on hydrothermally prepared low-dimensional β-Fe2O3 nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Fabrication of chloroform sensor based on hydrothermally prepared low-dimensional β-Fe2O3 nanoparticles
چکیده انگلیسی

Hydrothermally prepared as-grown low-dimensional nano-particles (NPs) have been characterized using UV–vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Raman spectroscopy, and electron dispersion spectroscopy (EDS). The uniformity of the nano-material was executed by the scanning electron microscopy, where the single phase of the nano-crystalline β-Fe2O3 was characterized using XRD techniques. β-Fe2O3 nanoparticles fabricated glassy carbon electrode (GCE) have improved chloroform-sensing performances in terms of electrical response (I–V technique) for detecting analyte in liquid phase. The analytical performances were investigated, which showed that the better sensitivity, stability, and reproducibility of the sensor improved significantly by using Fe2O3 NPs thin-film on GCE. The calibration plot was linear (R = 0.9785) over the large range of 12.0 μM to 12.0 mM. The sensitivity was calculated as 2.1792 μA cm−2 mM−1 with a detection limit of 4.4 ± 0.10 μM in short response time (10.0 s).

Figure optionsDownload as PowerPoint slideHighlights
► As-grown low-dimensional β-Fe2O3 nanoparticles.
► Chloroform chemical sensor.
► Higher sensitivity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 50, Issue 4, October 2011, Pages 369–376
نویسندگان
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