Solid state synthesis, characterization and optical properties of Yb2V2O8 superstructure nanomaterials

Document Type : Research Paper

Authors

1 Division of advanced nano material technologies, Scientific Research Center, Al-Ayen University,Thi-Qar, Iraq

2 National University of Science and Technology, College of pharmacy, Thi Qar, Iraq.

3 Al-Nisour University College/Baghdad/Iraq.

4 Al-Manara College For Medical Sciences/Misan/Iraq.

5 College of Nursing, Altoosi University College, Najaf, Iraq

6 The Islamic University, Najaf, Iraq

7 saveetha institute of medical and Technical Sciences

8 saveetha institute of medical and technical sciences

9 Division of Nephrology & Hypertension, Department of Internal Medicine, Faculty of Medicine, Universitas Lambung Mangkurat / Ulin Hospital, Banjarmasin, Indonesia

10 Yanka Kupala State University of Grodno

Abstract

Oxides and fluorites with general formula A2B2O8 (where A is a medium – large cation and B is an octahedrally coordinated, high – charge cation) have been studied extensively. Rare earth ortho vanadates are important class of inorganic functional materials studied extensively for their structural and chemical properties. Yb2V2O8 has fluorite type structure. Yb2V2O8 nano powders were synthesized solid state reactions using Yb2O3 and Na2VO4 at stoichiometric 1:1 Yb:V molar ratio as raw materials for the first time. The synthesized materials were characterized by powder X-ray diffraction (PXRD) technique. Structural analysis was performed by the FullProf program employing profile matching with constant scale factors. The results showed that the patterns had a main tetragonal Yb2V2O8 structure with a space group of I41/amd. FESEM images showed that the synthesized Yb2V2O8 particles had mono-shaped sphere morphologies. Ultraviolet–visible spectrum analysis showed that the nanostructured Yb2V2O8 powders possessed strong light absorption properties in the ultraviolet-visible light region. The direct optical band gaps were 2.7 eV, 2.6 eV, 2.5 eV and 2.4 eV for (S1), (S2), (S3) and (S4), respectively.

Keywords

Journal of Nanostructures

Articles in Press, Accepted Manuscript
Available Online from 11 March 2022

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