Abstract
Silver tungstate (α-Ag2WO4) nanoparticles were synthesized by chemical precipitation method. Thermodynamic stability of the α-Ag2WO4 nanoparticles was studied by thermogravimetric and differential thermal analysis. These nanoparticles were structurally characterized by X-ray diffraction, Fourier transform infrared spectroscopy and Raman spectroscopy. The structure and morphology of these nanoparticles were studied by scanning electron microscopy and high-resolution transmission electron microscopy. The composition of nanoparticles near and at the surface was estimated by using energy-dispersive X-ray analysis. The optical properties of these nanoparticles were investigated by UV–Visible as well as photoluminescence spectroscopy. The effects of calcination temperature on the geometric parameters and optical properties of α-Ag2WO4 nanoparticle samples was also investigated.
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Acknowledgments
The authors acknowledge their thanks to Nirmala College, Muvattupuzha for providing the opportunity to undertake this study. They are also thankful to Nirmala College of Pharmacy, Muvattupuzha, SAIF, Cochin and SAIF, IITM, Chennai for providing facilities for characterization. Authors are grateful to KSCSTE, Thiruvananthapuram and UGC, New Delhi, for the financial support.
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Sreedevi, A., Priyanka, K.P., Babitha, K.K. et al. Chemical synthesis, structural characterization and optical properties of nanophase α-Ag2WO4 . Indian J Phys 89, 889–897 (2015). https://doi.org/10.1007/s12648-015-0664-1
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DOI: https://doi.org/10.1007/s12648-015-0664-1