Scientific Research and Studies Vol. 4(10), pp. 245-253,
Copyright © 2017
Author(s) retain the
copyright of this article
Full Length Research Paper
obtained from refuse of cattle slaughterer as a catalyst
support: an alternative material for heterogeneous
Fabrício V. de Andrade1*,
Geraldo M. de Lima2, Rodinei Augusti2, Márcio G. Coelho3,
Yola Pertence4, Isla R. Machado4 and Luciana S. Duarte2
de Itajubá-Campus Itabira, 35903-087, Itabira, MG, Brazil.
2Departamento de Química, ICEx, Universidade Federal de Minas Gerais,
31270-901, Belo Horizonte, MG, Brazil.
3Colégio Militar de Belo Horizonte, CMBH, 31255-000, Belo Horizonte,
4Centro Universitário Newton de Paiva, 30494-270, Belo Horizonte, MG,
*Corresponding author. E-mail:
0055 31 3839 0897.
Accepted 12 September, 2017
composite TiO2/hydroxyapatite, prepared by the
impregnation method, has been characterized by X-ray diffraction
(XRD), scanning electron microscopy (SEM), electronic
spectroscopy, and the surface area has been evaluated by
Brunauer-Emmett-Teller (BET) technique. The photocatalytic
activity was tested in degradation of three different classes of
organic molecules in aqueous medium: atrazine (ATR), diclofenac
(DFC) and indigo carmine (IC). Electrospray ionization mass
spectrometry (ESI-MS) was used to identify the main by-products
generated. Based on these results, a mechanism was proposed for
the degradation of each component after the photocatalytic
process. The degradation rate of each compound was determined by
the data acquired from high performance liquid chromatography (HPLC)
measurements. Finally, eco-toxicological tests with Artemia
salina showed little differences in the toxicity of
diclofenac (DFC) and indigo carmine (IC), before and after the
degradation process. However, the toxic effects of ATR were
reduced by half using the same oxidation approach.
Key words: Photocatalysis, bovine bone, titanium oxide,
wastewater, organic pollutants, eco-toxicity.
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