Chemical and Materials Engineering(CEASE PUBLICATION) Vol. 5(2), pp. 43 - 54
DOI: 10.13189/cme.2017.050204
Reprint (PDF) (1426Kb)

Synthesis, FTIR Studies and Optical Properties of Aluminium Doped Chromium Oxide Nanoparticles by Microwave Irradiation at Different Concentrations

J. T. Anandhi ^1,*, S. L. Rayer ², T. Chithambarathanu ^3
1 Department of Physics, St. Jerome's College, India
² Department of Physics, St. Jude's College, India
³ Department of Physics, S.T. Hindu College, India

ABSTRACT

In this exposure, pure and aluminium (Al)doped chromium (III) oxide (Cr₂O₃) nanoparticles are synthesized by simple solvothermal microwave irradiation (SMI) technique. SMI technique is simple and low cost; it has the future to be produced on a huge scale. The effect of dopant (Al) concentration on the structural behavior of Cr₂O₃ nanoparticles was examined by X-ray diffraction. The average crystallite size of the synthesized nanoparticles was measured from XRD patterns using Scherrer equation and was decreased from 14.56 nm 10.86 nm with the increasing Al concentration in Cr₂O₃ from 0 to 5% (in steps of 0, 1, 2, 3, 5). Morphologies and compositional elements of the synthesized nanoparticles were observed by the field emission scanning electron microscopy (FESEM) and energy dispersive X-ray (EDX) spectroscopy, respectively. The optical property of the samples was measured by ultraviolet - visible (UV-Vis.) absorption spectroscopy. The observed optical band gap value ranges from 2.12 eV to 1.90 eV for Al doped nanoparticles and was red shifted in comparison with that of the pure Cr₂O₃ (3.483 eV).

KEYWORDS
Cr₂O₃ Nanoparticles, SMI Method, Structural Properties, Optical Properties

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] J. T. Anandhi , S. L. Rayer , T. Chithambarathanu , "Synthesis, FTIR Studies and Optical Properties of Aluminium Doped Chromium Oxide Nanoparticles by Microwave Irradiation at Different Concentrations," Chemical and Materials Engineering(CEASE PUBLICATION), Vol. 5, No. 2, pp. 43 - 54, 2017. DOI: 10.13189/cme.2017.050204.

(b). APA Format:
J. T. Anandhi , S. L. Rayer , T. Chithambarathanu (2017). Synthesis, FTIR Studies and Optical Properties of Aluminium Doped Chromium Oxide Nanoparticles by Microwave Irradiation at Different Concentrations. Chemical and Materials Engineering(CEASE PUBLICATION), 5(2), 43 - 54. DOI: 10.13189/cme.2017.050204.