Research on Chemical Intermediates

, Volume 39, Issue 2, pp 645–657 | Cite as

Synthesis, structural and photocatalytic studies of Mn-doped CdS nanoparticles

  • Ruby Chauhan
  • Ashavani Kumar
  • Ram Pal Chaudhary


Mn-doped CdS nanoparticles (Cd1−x Mn x S; where x = 0.00–0.10) were synthesized by a chemical precipitation method. The synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscope, transmission electron microscope (TEM), and UV–Vis spectrometer. The XRD and TEM measurements show that the size of crystallites is in the range of 10–40 nm. Optical measurements indicated a red shift in the absorption band edge upon Mn doping. The direct allowed band gaps of undoped and Mn-doped CdS nanoparticles measured by UV–Vis spectrometer were 2.3 and 2.4 eV at 400 °C, respectively. Photocatalytic activities of CdS and Mn-doped CdS were evaluated by irradiating the solution to ultraviolet light and taking methyl orange (MO) as organic dye. It was found that 5 mol% Mn-doped CdS bleaches MO much faster than undoped CdS upon its exposure to the ultraviolet light. The experiment demonstrated that the photo-degradation efficiency of 5 mol% Mn-doped CdS was significantly higher than that of undoped CdS.


Nanoparticles X-ray diffraction UV–Vis spectrometer Scanning electron microscope Transmission electron microscope Photocatalysis 



TGhe authors are grateful to Dr. Sanjeev Aggrawal and Nidhi Sekhawat, Kurukshetra University, Kurukshetra, for technical support in obtaining UV–Vis spectra. The authors are also grateful to the Director, NIT, Kurukshetra, for XRD facilities in the physics department.


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Ruby Chauhan
    • 1
    • 2
  • Ashavani Kumar
    • 3
  • Ram Pal Chaudhary
    • 1
  1. 1.Department of ChemistrySant Longowal Institute of Engineering & TechnologyLongowalIndia
  2. 2.Technology Education and Research Integrated InstitutionsKurukshetraIndia
  3. 3.Department of PhysicsNational Institute of TechnologyKurukshetraIndia

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