CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2

The catalytic ozonation of oxalic acid in a batch reactor using TiO2, MnO2/TiO2 and Rh/TiO2 as catalysts was studied. The presence of the catalyst significantly improves the ozonation rate in comparison with the non-catalytic reaction. The adsorption and the extent of degradation of oxalic acid were...

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Autores principales:	QUISPE,CRISTINA, VILLASEÑOR,JORGE, PECCHI,GINA, REYES,PATRICIO
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2006
Materias:	Oxalic acid, catalytic ozonation MnO2/TiO2, Rh/TiO2
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000400012
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spelling	oai:scielo:S0717-970720060004000122007-03-08CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2QUISPE,CRISTINAVILLASEÑOR,JORGEPECCHI,GINAREYES,PATRICIO Oxalic acid, catalytic ozonation MnO2/TiO2, Rh/TiO2 The catalytic ozonation of oxalic acid in a batch reactor using TiO2, MnO2/TiO2 and Rh/TiO2 as catalysts was studied. The presence of the catalyst significantly improves the ozonation rate in comparison with the non-catalytic reaction. The adsorption and the extent of degradation of oxalic acid were found to be dependent on the solution's pH. Higher degradation rates were found for catalytic systems at pH 2.5, where the oxalic acid concentration in the water phase was almost completely removed. The contribution of the MnO2/TiO2 and Rh/TiO2 catalysts as well the TiO2 support is discussed. The highest mineralization, expressed as CO2 evolution, was reached with the MnO2/TiO2 catalyst at pH 2.5info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.51 n.4 20062006-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000400012en10.4067/S0717-97072006000400012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Oxalic acid, catalytic ozonation MnO2/TiO2, Rh/TiO2
spellingShingle	Oxalic acid, catalytic ozonation MnO2/TiO2, Rh/TiO2 QUISPE,CRISTINA VILLASEÑOR,JORGE PECCHI,GINA REYES,PATRICIO CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2
description	The catalytic ozonation of oxalic acid in a batch reactor using TiO2, MnO2/TiO2 and Rh/TiO2 as catalysts was studied. The presence of the catalyst significantly improves the ozonation rate in comparison with the non-catalytic reaction. The adsorption and the extent of degradation of oxalic acid were found to be dependent on the solution's pH. Higher degradation rates were found for catalytic systems at pH 2.5, where the oxalic acid concentration in the water phase was almost completely removed. The contribution of the MnO2/TiO2 and Rh/TiO2 catalysts as well the TiO2 support is discussed. The highest mineralization, expressed as CO2 evolution, was reached with the MnO2/TiO2 catalyst at pH 2.5
author	QUISPE,CRISTINA VILLASEÑOR,JORGE PECCHI,GINA REYES,PATRICIO
author_facet	QUISPE,CRISTINA VILLASEÑOR,JORGE PECCHI,GINA REYES,PATRICIO
author_sort	QUISPE,CRISTINA
title	CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2
title_short	CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2
title_full	CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2
title_fullStr	CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2
title_full_unstemmed	CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2
title_sort	catalytic ozonation of oxalic acid with mno2/tio2 and rh/tio2
publisher	Sociedad Chilena de Química
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000400012
work_keys_str_mv	AT quispecristina catalyticozonationofoxalicacidwithmno2tio2andrhtio2 AT villasenorjorge catalyticozonationofoxalicacidwithmno2tio2andrhtio2 AT pecchigina catalyticozonationofoxalicacidwithmno2tio2andrhtio2 AT reyespatricio catalyticozonationofoxalicacidwithmno2tio2andrhtio2
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CATALYTIC OZONATION OF OXALIC ACID WITH MnO2/TiO2 AND Rh/TiO2

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