کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5358290 1503617 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A facile surface-enhanced Raman scattering (SERS) detection of rhodamine 6G and crystal violet using Au nanoparticle substrates
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
A facile surface-enhanced Raman scattering (SERS) detection of rhodamine 6G and crystal violet using Au nanoparticle substrates
چکیده انگلیسی
In this study, Au nanoparticle (5 nm) colloid was employed for a facile preparation of SERS substrates from three approaches: (1) original Au nanoparticles, (b) Au colloid coated 200 nm polystyrene (PS) beads, and (3) Au colloid annealed at 200-500 °C. Rhodamine 6G (R6G) and crystal violet were employed as the Raman active probes. The Au colloid deposited PS beads (PS@Au) exhibit intensive SERS signal for R6G detection, which is promising for crystal violet detection after being annealed at 400 °C. The 200 °C annealed Au nanoparticles demonstrate excellent combined SERS sensitivity for both R6G and crystal violet. For the original Au colloid, elevated annealing temperature from 200 °C to 500 °C decreases the SERS intensity as Au particles were coarsened gradually.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 347, 30 August 2015, Pages 569-573
نویسندگان
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