Author:
Madani Wesal M,Seoudi Roshdi
Abstract
AbstractThe chemical reduction method was used to prepare silver nanoparticles (AgNPs). The fluorescence spectrum was enhanced by mixing silver nanoparticles with rhodamine B (RhB) and polyacrylic acid (PAA). The surface plasmonic resonance (SPR) of AgNPs was studied using UV–vis spectroscopy to determine the effect of preparation times. TEM measurements confirmed the formation of AgNPs with an average size of 13–19 nm. The Fourier transform infrared bands at 1683 cm−1 and 1243 cm−1 of PAA have been changed into PAA blended with AgNPs/RhB, due to the interaction between AgNPs and PAA through C = O and C-O functional groups. PAA/(AgNPs/RhB) has high- and low-intensity bands in the UV–visible spectrum. X-ray diffraction analysis was performed on PAA blended with RhB/AgNPs to study the crystallization process. Fluorescence measurements of PAA/(RhB/AgNPs) band emit at 587 nm and 440 nm, with 13–19 nm, respectively. Its emission wavelength is higher than the exciting wavelength, indicating an electronic transition from (SPR) of the nanoparticles and π-π* from RhB to PAA. As a result, adding (AgNPs/RhB) to PAA enhances its fluorescence emission spectrum.
Publisher
Springer Science and Business Media LLC
Cited by
3 articles.
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