Influence of Fe doping on structural, physicochemical and biological properties of CdSe nanoparticles

Publication date: October 2019Source: Materials Science in Semiconductor Processing, Volume 101Author(s): D.V. Sridevi, E. Sundaravadivel, P. KanagarajAbstractWe synthesized pure and Fe doped CdSe nanoparticles (NPs) (Fe@CdSe NPs) with different dopant concentrations 5%, 10%, 15% using mercaptoethanol (ME) as a capping agent via precipitation technique (PT). As-synthesized NPs phase clarity was confirmed with the help of powder X-ray diffraction (P-XRD), and the calculated crystallite size was found to be ∼1.2 nm (±0.1) using by Scherer method. The optical band gap (Eg) values were depicted by UV–Visible spectroscopy with the help of K-M function (Kubelka-Munk). The Fourier transform infrared (FT-IR) and FT-Raman spectrometer were used to analyze the existence of functional groups and various vibrational modes in the synthesized NPs. The structural and expected elemental compositional properties were examined by using both transmission electron microscope (TEM) and energy dispersive spectroscopy (EDAX). In addition, magnetic property of synthesized NPs was measured using vibrating scanning magnetometer (VSM). Further, the impedance spectroscopy was employed to estimate the dielectric relaxation of the samples at various temperatures (303, 323, 343 and 373 K) with different frequency range. The synthesized pure and Fe@CdSe NPs were employed in photocatalytic degradation by methylene blue (MB) dye under visible region (664 nm). It resulted in the enhancement of photo...
Source: Materials Science in Semiconductor Processing - Category: Materials Science Source Type: research