Journal of Materials Science: Materials in Electronics

, Volume 29, Issue 21, pp 18111–18119 | Cite as

Synthesis of silver and sulphur codoped TiO2 nanoparticles for photocatalytic degradation of methylene blue

  • Mehala Kunnamareddy
  • Barathi DiravidamaniEmail author
  • Ranjith Rajendran
  • Boobas Singaram
  • Krishnakumar Varadharajan


In the present work, silver and sulphur codoped TiO2 (Ag–S/TiO2) photocatalysts were effectively prepared by sol–gel technique. The prepared samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive x-ray analysis (EDX), Fourier transform infrared (FTIR) spectroscopy, diffuse reflectance UV–Vis spectroscopy (UV-DRS) and photoluminescence (PL). The XRD patterns consisted of anatase crystalline phases and the particle size and shape of the prepared samples were observed by SEM and HR-TEM. The presence of doping ions was confirmed by EDX analysis, the decreased band-gap energy of Ag–S codoped TiO2 nanoparticles was investigated by UV-DRS. The decreased in the intensity of Ag–S codoped TiO2 was absorbed due to the lower separation of electron–hole pairs were confirmed by PL spectrum. The Ag–S codoped TiO2 showed higher photocatalytic activity than pure and single-doped TiO2 in the photodegradation of methylene blue (MB) aqueous solution under visible light irradiation. The given work was a good model to associate the considering of the synergistic effect of metal and non-metal codoped TiO2 in the photocatalysis and photo electrochemistry.



The authors acknowledge Department Nanoscience and nanotechnology, Karunya University for providing the characterization facilities to carry out my research work.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

10854_2018_9922_MOESM1_ESM.docx (189 kb)
Supplementary material 1 (DOCX 189 KB)


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Mehala Kunnamareddy
    • 1
  • Barathi Diravidamani
    • 1
    Email author
  • Ranjith Rajendran
    • 2
  • Boobas Singaram
    • 3
  • Krishnakumar Varadharajan
    • 2
  1. 1.Department of PhysicsN.K.R. Govt. Arts College for WomenNamakkalIndia
  2. 2.Advanced Materials Laboratory, Department of PhysicsPeriyar UniversitySalemIndia
  3. 3.Department of PhysicsPeriyar University Constituent College of Arts and ScienceDharmapuriIndia

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