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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
Article

Abstract

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 

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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

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