Journal of Materials Science

, Volume 47, Issue 5, pp 2155–2161 | Cite as

Visible light-activated cadmium-doped ZnO nanostructured photocatalyst for the treatment of methylene blue dye

  • Dongfang Zhang
  • Fanbin Zeng


An attempt was made to prepare Cd-doped ZnO photocatalyst for visible light assisted degradation of a textile dye (methylene blue, MB) in aqueous solutions by a traditional sol–gel process. The as-prepared nanoparticles were characterized by X-ray diffraction, UV–vis diffuse reflectance spectroscopy, and photoluminescence spectra techniques. The results showed that the Cd-doped ZnO possess the single-phase hexagonal wurtzite structure. The photocatalytic activity of the nanoparticles under visible light was investigated by measuring the photodegradation of MB in aqueous dispersion. The effects of key operation parameters such as initial dye concentration, catalyst loading as well as initial pH value on the decolorization extents were investigated. The results indicate that the decolorization of the organic molecule followed a pseudo-first-order kinetics according to the Langmuir–Hinshelwood model. Under the optimum operation conditions, approximately 85.0% dye removal was achieved within 3.5 h.


Methylene Blue Photocatalytic Activity Catalyst Loading Color Removal Photocatalytic Efficiency 
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  1. 1.
    Neppolian B, Choi HC, Sakthivel S, Arabindoo B, Murugesan V (2002) J Hazard Mater 89:303CrossRefGoogle Scholar
  2. 2.
    Gupta GS, Prasad G, Singh VN (1990) Water Res 24:45CrossRefGoogle Scholar
  3. 3.
    Rozzi A, Antonelli M, Arcari M (1999) Water Sci Technol 40:409CrossRefGoogle Scholar
  4. 4.
    Xu L, Li W, Lu S, Wang Z, Zhu Q, Ling Y (2002) Desalination 149:199CrossRefGoogle Scholar
  5. 5.
    Mo J, Hwang JE, Jegal J, Kim J (2007) Dyes Pigments 72:240CrossRefGoogle Scholar
  6. 6.
    Zhang DF, Zeng FB (2010) Appl Surf Sci 257:867CrossRefGoogle Scholar
  7. 7.
    Saien J, Soleymani AR (2007) J Hazard Mater 144:506CrossRefGoogle Scholar
  8. 8.
    Fox MA, Dulay MT (1993) Chem Rev 93:341CrossRefGoogle Scholar
  9. 9.
    Srikant V, Clarke DR (1998) J Appl Phys 83:5447CrossRefGoogle Scholar
  10. 10.
    Polarz S, Orlov AV, Schuth F, Lu AH (2007) Chem Eur J 13:592CrossRefGoogle Scholar
  11. 11.
    Henglein A (1989) Chem Rev 89:1861CrossRefGoogle Scholar
  12. 12.
    Ekambaram S, Likubo Y, Kudo A (2007) J Alloys Compd 433:237CrossRefGoogle Scholar
  13. 13.
    Zhou G, Deng J (2007) Mater Sci Semicond Process 10:90CrossRefGoogle Scholar
  14. 14.
    Karakitsou KE, Verykios XE (1993) J Phys Chem 97:1184CrossRefGoogle Scholar
  15. 15.
    Li FB, Li XZ (2002) Appl Catal A 228:15CrossRefGoogle Scholar
  16. 16.
    Pan R, Liew K, Xu L, Gao Y, Zhou J, Zhou H (2007) Colloid Surf A 305:17CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.College of ScienceHuazhong Agricultural UniversityWuhanPeople’s Republic of China

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