Selecting of the Diffuse Reflectance Spectra Parameters for Identification of Oxygen Containing Admixtures and the Degree of Interaction in ZnS(ZnO)–Dy2S3 Systems N.A. Chivireva†, I.V. Stoyanova†, V.F. Zinchenko†, A.O. Stoianov†, I.R. Magunov†, O.S. Mazur†, V.P. Antonovich*†
	* Corresponding authors † Bogatskii Physicochemical Institute, National Academy of Sciences of Ukraine, Lyustdorfskaya dor. 86, Odessa, 65080 Ukraine E-mail: antonovichvp@ukr.net
	Methods Objects Chem. Anal., 2015, 10(1), p. 11-17 https://doi.org/10.17721/moca.2015.11-17
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Abstract

Possibility of identification of Dysprosium(III) compounds – oxosulfide (Dy₂O₂S), sulfide (Dy₂S₃) and oxide (Dy₂O₃) under characteristics of spectra of diffuse reflectance (position, intensity and splitting of the bands caused by 4f-4f-electronic transitions in Dy³⁺ ion) in near IR-interval of a spectrum. Quantitative parameter F(R)_max/F(R)_IV - the relation between intensities of the bands of reflectance corresponding to transitions ⁶H_13/2 → ⁶H_9/2; ⁶F_11/2 and ⁶H_13/2 → ⁶H_11/2 − is proposed making possible detecting presence of Dysprosium oxosulfide in samples of Zinc sulfide alloyed with Dy₂S₃ which is used as sulfidizing and oxygen-removing additive. It is established that the negative deviation from additivity of values of F(R) of the bands of diffuse reflectance with increase of the content of Dysprosium sulfide in samples of ZnS-n%Dy₂S₃ can serve as the interaction characteristic of admixture (ZnO) and alloying (Dy₂S₃) components in studied systems.

Keywords: zinc sulfide, dysprosium sulfide, dysprosium oxosulfide identification, diffuse reflectance
spectra parameters

Article language: Rus