%0 Journal Article %1 WOS:000316054400005 %A Ribeiro, P C %A Lira, H L %A Sasaki, J M %A Costa, A C F M %C CIDADE UNIV, ILHA DO FUNDAO, BLOCO I 2000, S L I 146, RIO DE JANEIRO RJ, CEP21941-972, BRAZIL %D 2012 %I UNIV FED RIO DE JANEIRO, LAB HIDROGENIO %J MATERIA-RIO DE JANEIRO %K Pechini dioxide; method} methyl photocatalysis; red; titanium {heterogeneous %N 2 %P 988-996 %R 10.1590/S1517-70762012000200005 %T Photocatalysis methyl red dye with TiO2 obtained by the Pechini method %V 17 %X Titanium dioxide has been widely investigated in the removal of organic pollutants. It is a polymorphic material which, depending on the conditions and the type of synthetic method used in its preparation may be monophasic or biphasic, with predominance of one of the phases. Therefore, this paper proposes the evaluation of the structure, morphology and photocatalytic activity in the degradation of methyl red dye by TiO2 samples synthesized by the Pechini method with citric acid/metal cation ratios of 4:1 and 6:1. The synthesized samples were calcined at 500 degrees C for 1 hour and were characterized by X-ray powder diffraction technique by using Rietveld refinement, textural analysis, scanning electron microscopy and photocatalytic test sin bench scale, using methyl red dye. The results showed that the sample 4:1 led to the formation of two phases, 89% anatase and 11% rutile, while the sample 6:1 led only to the formation of the anatase phase. The 4:1 sample, a mixture of anatase and rutile phase, photocatalytically, was more effective than the 6:1 sample.

@article{WOS:000316054400005, abstract = {Titanium dioxide has been widely investigated in the removal of organic pollutants. It is a polymorphic material which, depending on the conditions and the type of synthetic method used in its preparation may be monophasic or biphasic, with predominance of one of the phases. Therefore, this paper proposes the evaluation of the structure, morphology and photocatalytic activity in the degradation of methyl red dye by TiO2 samples synthesized by the Pechini method with citric acid/metal cation ratios of 4:1 and 6:1. The synthesized samples were calcined at 500 degrees C for 1 hour and were characterized by X-ray powder diffraction technique by using Rietveld refinement, textural analysis, scanning electron microscopy and photocatalytic test sin bench scale, using methyl red dye. The results showed that the sample 4:1 led to the formation of two phases, 89% anatase and 11% rutile, while the sample 6:1 led only to the formation of the anatase phase. The 4:1 sample, a mixture of anatase and rutile phase, photocatalytically, was more effective than the 6:1 sample.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {CIDADE UNIV, ILHA DO FUNDAO, BLOCO I 2000, S L I 146, RIO DE JANEIRO RJ, CEP21941-972, BRAZIL}, author = {Ribeiro, P C and Lira, H L and Sasaki, J M and Costa, A C F M}, biburl = {https://www.bibsonomy.org/bibtex/23765ea75c0582fdf5fe6bc0be5d655ea/ppgfis_ufc_br}, doi = {10.1590/S1517-70762012000200005}, interhash = {b7d70e11975c27917c08af2a79b0b47e}, intrahash = {3765ea75c0582fdf5fe6bc0be5d655ea}, issn = {1517-7076}, journal = {MATERIA-RIO DE JANEIRO}, keywords = {Pechini dioxide; method} methyl photocatalysis; red; titanium {heterogeneous}, number = 2, pages = {988-996}, publisher = {UNIV FED RIO DE JANEIRO, LAB HIDROGENIO}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Photocatalysis methyl red dye with TiO2 obtained by the Pechini method}, tppubtype = {article}, volume = 17, year = 2012 }