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.
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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.
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).
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).
Wen S, Zhao J C, Sheng G Y, et al. Photocatalytic reactions of phenanthrene TiO2/water interfaces[J]. Chemosphere, 2002, 46: 871–877.
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).
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.
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).
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.
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.
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.
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.
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.
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.
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.
He C H, Gu M Y. Photocatalytic activity of bismuth germanate Bi12GeO20 powders[J]. Scripta Materialia, 2006, 54: 1221–1225.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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Foundation item: Supported by Program for New Century Excellent Talents in University (NCET05-0662)
Biography: WANG Huiyan, female, Attending doctor, research direction: drug release and drug degradation.
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Wang, H., Zhang, G. & Gao, Y. Photocatalytic degradation of metronidazole in aqueous solution by niobate K6Nb10.8O30 . Wuhan Univ. J. Nat. Sci. 15, 345–349 (2010). https://doi.org/10.1007/s11859-010-0664-0
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DOI: https://doi.org/10.1007/s11859-010-0664-0