Issue

Vol. 32 No. 1 (2020): Vol 32 Issue 1

Copyright (c) 2020 AJC

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Structural Analysis using X-Ray Diffraction and FTIR Spectroscopic Studies on Mn2+ Substituted CaWO4 Materials Synthesized by Coprecipitation Method

https://doi.org/10.14233/ajchem.2020.22199
M. Jaganadha Rao
Department of General Section, Government Polytechnic, Srikakulam-532005, India; Department of Physics, Institute of Technology, GITAM University, Visakhapatnam-530045, India
K.S.R. Murthy
Department of Physics, Institute of Technology, GITAM University, Visakhapatnam-530045, India
Ch. Ravi Shankar Kumar
Department of Electronics and Physics, Institute of Science, GITAM University, Visakhapatnam-530045, India
https://orcid.org/0000-0001-8469-6065
Anjali Jha
Department of Chemistry, Institute of Science, GITAM University, Visakhapatnam-530045, India
G.S.V.R.K. Choudary
Department of Physics, Bhavan’s Vivekananda College, Sainikpuri, Secunderabad-500094, India
https://orcid.org/0000-0001-9570-4753
M. Chaitanya Varma
Department of Physics, Institute of Technology, GITAM University, Visakhapatnam-530045, India
https://orcid.org/0000-0001-8228-4892

Corresponding Author(s) : M. Jaganadha Rao

mjrphysics1964@gmail.com

Asian Journal of Chemistry, Vol. 32 No. 1 (2020): Vol 32 Issue 1

Abstract

Present day technology requires synthesis of materials with low energy consumption, free mercury pollution and its reliability. A novel material with control of crystallite size, composition and simple for white light relies in synthesis of materials. The present focus of article attributes series of manganese doped Ca1-xMnxWO4 luminescent materials with co-precipitation method. Reported studies attempts with change in structure of calcium tungstate (CaWO4) are observed with dopants like Eu3+, Eu2+, Tb3+, etc. However the effect of Mn2+ on structural properties of CaWO4 are quite interesting. The synthesized samples were characterized with X-ray diffraction for lattice parameters, crystallite size and FTIR studies for bonding mechanism of O-W-O stretching and W-O-W bridge bond. Rietveld profile refinement of XRD patterns using MAUD program Ca1-xMnxWO4 revealed the Scheelite type structure with C4h point group and I41/a space group. Characterization studies reveal that doping of Mn2+ doping upto 0.1 in place of Ca2+ will not change the phase of Scheelite structure.

Keywords

CaWO4 Scheelite structure Rietveld refinement FTIR
Rao, M. J., Murthy, K., Shankar Kumar, C. R., Jha, A., Choudary, G., & Varma, M. C. (2019). Structural Analysis using X-Ray Diffraction and FTIR Spectroscopic Studies on Mn2+ Substituted CaWO4 Materials Synthesized by Coprecipitation Method. Asian Journal of Chemistry, 32(1), 49–52. https://doi.org/10.14233/ajchem.2020.22199
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. Y. Zhang, W. Gong, J. Yu, H. Pang, Q. Song and G. Ning, RSC Adv., 5, 62527 (2015); https://doi.org/10.1039/C5RA12502B.
  2. C. Cui, J. Bi and D. Gao, Mater. Lett., 62, 2222 (2008); https://doi.org/10.1016/j.matlet.2007.11.057.
  3. A. Phuruangrat, T. Thongtem and S. Thongtem, J. Exp. Nanosci., 5, 263 (2010); https://doi.org/10.1080/17458080903513276.
  4. M.L. Pang, J. Lin, S.B. Wang, M. Yu, Y.H. Zhou and X.M. Han, J. Phys.: Condens. Matter, 15, 5157 (2003); https://doi.org/10.1088/0953-8984/15/29/327.
  5. T. Katsumata, S. Minowa, T. Sakuma, A. Yoshida, S. Komuro and H. Aizawa, ECS Solid State Lett., 3, R23 (2014); https://doi.org/10.1149/2.0011407ssl.
  6. Q. Dai, G. Zhang, P. Liu, J. Wang and J. Tang, Inorg. Chem., 51, 9232 (2012); https://doi.org/10.1021/ic3006663.
  7. M. Pawlikowska, H. Fuks and E. Tomaszewicz, Ceram. Int., 43, 14135 (2017); https://doi.org/10.1016/j.ceramint.2017.07.154.
  8. Y. Li, A. Zhao, C. Chen, C. Zhang, J. Zhang and G. Jia, Dyes Pigments, 150, 267 (2018); https://doi.org/10.1016/j.dyepig.2017.12.021.
  9. J.W. Hess Jr., J.R. Sweet and W.B. White, J. Electrochem. Soc., 121, 142 (1974); https://doi.org/10.1149/1.2396809.
  10. T.-S. Chan, R.-S. Liu and I. Baginskiy, Chem. Mater., 20, 1215 (2008); https://doi.org/10.1021/cm7028867.
  11. F. Zhang, Y. Yiu, M.C. Aronson and S.S. Wong, J. Phys. Chem. C, 112, 14816 (2008); https://doi.org/10.1021/jp803611n.
  12. M.I. Kay, B.C. Frazer and I. Almodovar, J. Chem. Phys., 40, 504 (1964); https://doi.org/10.1063/1.1725144.
  13. R.M. Hazen, L.W. Finger and W.W. Mariathasan, J. Phys. Chem. Solids, 46, 253 (1985); https://doi.org/10.1016/0022-3697(85)90039-3.
  14. X. Lai, Y. Wei, D. Qin, Y. Zhao, Y. Wu, D. Gao, J. Bi, D. Lin and G. Xu, Integr. Ferroelectr., 142, 7 (2013); https://doi.org/10.1080/10584587.2013.780145.
Read More
Author biographies is not available.
Download
PDF
Statistic
Read Counter : 0 Download : 0