Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 229, Issue -, Pages 151-158Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2012.05.088
Keywords
Bismuth niobate; Yttrium; Sol-gel method; Ornidazole; Degradation
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Funding
- Special Research Fund for the Doctoral Program of Higher Education of the Republic of China [20096118110008]
- Research Fund for Excellent Doctoral Thesis of Xi'an University of Technology of the Republic of China [108-211004]
- Hall of Shaanxi Province Science and Technology of the Republic of China for research projects [2011K170302]
- Innovation of Science and Technology Fund of Xi'an University of Technology of the Republic of China [108211106]
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Nanoparticle of Bi5Nb3O15 doped with Y3+ was prepared for the first time by the sol-gel method combined with impregnation. The degradation of Ornidazole reacting with Y3+-Bi5Nb3O15 was investigated to explore the feasibility of using Y3+-Bi5Nb3O15 to treat antibiotics in wastewater. The products were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, UV-vis diffuse reflectance spectrum and X-ray photoelectron spectroscopy. The results showed that the Y3+-Bi5Nb3O15 exhibited single-crystalline orthorhombic structure with small particle size (20-100 nm); additionally, its UV-vis absorbance edges significantly shift to the visible-light region. The as-prepared nanoparticles exhibited a high photocatalytic activity in the decomposition of Ornidazole and several possible pathways of degradation of Ornidazole were proposed according to the results of ultra-performance liquid chromatography tandem mass spectrometry. (C) 2012 Elsevier B.V. All rights reserved.
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