Wuhan University Journal of Natural Sciences

, Volume 15, Issue 4, pp 345–349 | Cite as

Photocatalytic degradation of metronidazole in aqueous solution by niobate K6Nb10.8O30

  • Huiyan WangEmail author
  • Gaoke Zhang
  • Yuanyuan Gao


The photocatalytic degradation of antibiotic metronidazole in aqueous solution by niobate K6Nb10.8O30 photocatalyst that was prepared using a soft-chemical method was studied by Fourier transform infrared spectroscopy and UV-Vis absorption spectrum. Metronidazole is very stable and is difficult to degrade under UV irradiation. K6Nb10.8O30 photocatalyst cannot degrade metronidazole without UV irradiation and shows very high photocatalytic activity for the degradation of metronidazole under UV irradiation. The photocatalytic degradation rate of metronidazole increased with increasing the dosage of K6Nb10.8O30 photocatalyst. The photocatalytic degradation reaction of metronidazole by niobate K6Nb10.8O30 follows the first-order kinetic equation.

Key words

niobate potassium niobate metronidazole photocatalytic kinetics 

CLC number

X 703.1 X787 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    Kümmerer K, Al-Ahmad A, Mersch-Sundermann V. Biodegradability of some antibiotics, elimination of the genotoxicity and affection of wastewater bacteria in a simple test[J]. Chemosphere, 2000, 40: 701–710.CrossRefGoogle Scholar
  2. [2]
    Zheng Zhijun, Wang Kuitao, Zhang Bingzhu, et al. The treatment of pharmaceutical wastewater with chlorine dioxide catalytic oxidation[J]. Hebei Chemical Engineering and Industry, 2008, 31: 76–78 (Ch).Google Scholar
  3. [3]
    Xiong Zhenhu, Chen Zaixu, Liu Jianming. Comparison of metronidazole degradation by different advanced oxidation processes in low concentration aqueous solutions[J]. Chinese Journal of Environmental Engineering, 2009, 3: 465–469 (Ch).Google Scholar
  4. [4]
    Wen S, Zhao J C, Sheng G Y, et al. Photocatalytic reactions of phenanthrene TiO2/water interfaces[J]. Chemosphere, 2002, 46: 871–877.CrossRefGoogle Scholar
  5. [5]
    Liu Huajun, Peng Tianyou, Peng Zhenghe, et al. Photocatalytic degradation mechanism of RB over Dy-doped WO3 photocatalysts[ J]. J Wuhan Univ (Nat Sci Ed), 2007, 53: 127–132 (Ch).Google Scholar
  6. [6]
    Liu G M, Li X Z, Zhao J C, et al. Photooxidation mechanism of dye alizarin red in TiO2 dispersions under visible illumination: an experimental and theoretical examination[J]. Journal of Molecular Catalysis A: Chemical, 2000, 153: 221–229.CrossRefGoogle Scholar
  7. [7]
    Yang Chen, Yang Changjun, Fa Wenjun, et al. Preparation and photocatalytic properties of nano-TiO2 doped with I2[J]. J Wuhan Univ (Nat Sci Ed), 2008, 54: 645–649 (Ch).Google Scholar
  8. [8]
    Ye J H, Zou Z G, Matsushita A. A novel series of water splitting photocatalysts NiM2O6 (M = Nb, Ta) active under visible light[J]. International Journal of Hydrogen Energy, 2003, 28: 651–655.CrossRefGoogle Scholar
  9. [9]
    Zhang G K, He F S, Zou X, et al. Hydrothermal synthesis and photocatalytic property of KNb3O8 with nanometer leaf-like network[J]. Journal of Alloys and Compounds, 2007, 427: 82–86.CrossRefGoogle Scholar
  10. [10]
    Zou Z G, Ye J H, Arakawa H. Structural properties of InNbO4 and InTaO4: correlation with photocatalytic and photophysical properties[J]. Chemical Physics Letters, 2003, 378: 24–28.CrossRefGoogle Scholar
  11. [11]
    Zou Z G, Ye J H, Arakawa H. Photophysical and photocatalytic properties of InMO4 (M = Nb5+, Ta5+) under visible light irradiation[J]. Materials Research Bulletin, 2001, 36: 1185–1193.CrossRefGoogle Scholar
  12. [12]
    Zhang G K, He F S, Zou X, et al. Hydrothermal preparation and photocatalytic properties of sheet-like nanometer niobate K4Nb6O17[J]. Journal of Physics and Chemistry of Solids, 2008, 69: 1471–1474.CrossRefGoogle Scholar
  13. [13]
    Zou Z G, Ye J H, Arakaw H. Photocatalytic water splitting into H2 and/or O2 under UV and visible light irradiation with a semiconductor photocatalyst[J]. International Journal of Hydrogen Energy, 2003, 28: 663–669.CrossRefGoogle Scholar
  14. [14]
    Zhang C, Zhu Y F. Synthesis of square Bi2WO6 nanoplates as high-activity visible-light-driven photocatalysts[J]. Chemistry of Materials, 2005, 17: 3537–3545.CrossRefGoogle Scholar
  15. [15]
    He C H, Gu M Y. Photocatalytic activity of bismuth germanate Bi12GeO20 powders[J]. Scripta Materialia, 2006, 54: 1221–1225.CrossRefGoogle Scholar
  16. [16]
    Zhang L, Chen D R, Jiao X L. Monoclinic structured BiVO4 nanosheets: hydrothermal preparation, formation mechanism, and coloristic and photocatalytic properties[J]. The Journal of Physical Chemistry B, 2006, 110: 2668–2673.CrossRefGoogle Scholar
  17. [17]
    Zhang G K, Hu Y Y, Ding X M, et al. Wet chemical synthesis and photocatalytic activity of potassium niobate K6Nb10.8O30 powders[J]. Journal of Solid State Chemistry, 2008, 181: 2133–2138.CrossRefGoogle Scholar
  18. [18]
    Kaur S, Singh V. TiO2 mediated photocatalytic degradation studies of Reactive Red 198 by UV irradiation[J]. Journal of Hazardous Materials, 2007, 141: 230–236.CrossRefGoogle Scholar
  19. [19]
    Sleiman M, Conchon P, Ferronato C, et al. Iodosulfuron degradation by TiO2 photocatalysis: Kinetic and reactional pathway investigations[J]. Applied Catalysis B: Environmental, 2007, 71: 279–290.CrossRefGoogle Scholar
  20. [20]
    Talebian N, Nilforoushan M R. Comparative study of the structural, optical and photocatalytic properties of semiconductor metal oxides toward degradation of methylene blue[J]. Thin Solid Films, 2010, 518: 2210–2215.CrossRefGoogle Scholar
  21. [21]
    Kumar V K, Porkodi K, Selvaganapathi A. Constrain in solving Langmuir-Hinshelwood kinetic expression for the photocatalytic degradation of Auramine O aqueous solutions by ZnO catalyst[J]. Dyes and Pigments, 2007, 75: 246–249.CrossRefGoogle Scholar
  22. [22]
    Saiena J, Asgari M, Soleymani A R, et al. Photocatalytic decomposition of direct red 16 and kinetics analysis in a conic body packed bed reactor with nanostructure titania coated Raschig rings[J]. Chemical Engineering Journal, 2009, 151: 295–301.CrossRefGoogle Scholar
  23. [23]
    Chen Y H, Chen L L, Shang N C. Photocatalytic degradation of dimethyl phthalate in an aqueous solution with Pt-doped TiO2-coated magnetic PMMA microspheres[J]. Journal of Hazardous Materials, 2009, 172: 20–29.CrossRefGoogle Scholar
  24. [24]
    Wang C, Zhang X H, Liu H, et al. Reaction kinetics of photocatalytic degradation of sulfosalicylic acid using TiO2 microspheres[J]. Journal of Hazardous Materials, 2009, 163: 1101–1106.CrossRefGoogle Scholar
  25. [25]
    Kaur S, Singh V. TiO2 mediated photocatalytic degradation studies of reactive red 198 by UV irradiation[J]. Journal of Hazardous Materials, 2007, 141: 230–236.CrossRefGoogle Scholar
  26. [26]
    Jiang R, Zhu H Y, Li X D, et al. Visible light photocatalytic decolourization of C. I. Acid Red 66 by chitosan capped CdS composite nanoparticles[J]. Chemical Engineering Journal, 2009, 152: 537–542.CrossRefGoogle Scholar
  27. [27]
    Pare B, Jonnalagadda S N, Tomar H, et al. ZnO assisted photocatalytic degradation of acridine orange in aqueous solution using visible irradiation[J]. Desalination, 2008, 232: 80–90.CrossRefGoogle Scholar

Copyright information

© Wuhan University and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.HospitalWuhan University of TechnologyWuhanHubei, China
  2. 2.School of Resources and Environmental EngineeringWuhan University of TechnologyWuhanHubei, China

Personalised recommendations