<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-249X</journal-id>
<journal-title><![CDATA[Journal of the Mexican Chemical Society]]></journal-title>
<abbrev-journal-title><![CDATA[J. Mex. Chem. Soc]]></abbrev-journal-title>
<issn>1870-249X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Química de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-249X2019000300001</article-id>
<article-id pub-id-type="doi">10.29356/jmcs.v63i3.708</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Titanium Oxide Supported on Montmorillonite Clays for Environmental Applications]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rigoti]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Schwanke]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Araújo]]></surname>
<given-names><![CDATA[Karla C. F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Huitle]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pergher]]></surname>
<given-names><![CDATA[S. B. C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Federal University of Rio Grande do Norte Institute of Chemistry ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>63</volume>
<numero>3</numero>
<fpage>1</fpage>
<lpage>12</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-249X2019000300001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-249X2019000300001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-249X2019000300001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Montmorillonite clays (natural and commercial (KSF and K-10)) were modified by impregnation with TiO2 from TiCl4 solution. The natural and KSF clays were also pillared with Al polyhydroxication and after that, these were impregnated with TiO2. Photocatalysts were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy X-ray (EDX) and Infrared Spectroscopy (IR) in order to understand their catalytic potential properties. Photocatalysts were used in a decomposition reaction of methylene blue (MB) and all catalysts demonstrated photocatalytic activity for degradation of dye (20 to 45%); however, K-10 sample showed the best results (more than 98% of elimination) due to its high superficial area and TiO2 dispersion. The results obtained using photocatalysts were compared with electrochemical oxidation process using Ti/Pt anode, showing that the photocatalysis reaction is more efficient. At present, our results demonstrate the potential of these catalysts for environment applications.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las arcillas de montmorillonita (naturales y comerciales (KSF y K-10)) se modificaron por impregnación con TiO2 a partir de una solución de TiCl4. Las arcillas naturales y KSF también se agruparon con polihidroxilación de Al y, posteriormente, se impregnaron con TiO2. Los fotocatalizadores se caracterizaron mediante difracción de rayos-X (XRD), microscopía electrónica de barrido (SEM), espectroscopía de rayos-X de dispersión de energía (EDX) y espectroscopia de infrarrojo (IR) con el objetivo de comprender sus propiedades catalíticas. Los fotocatalizadores se emplearon en una reacción de descomposición de azul de metileno (MB) y todos los materiales sintetizados mostraron actividad fotocatalítica para la degradación del colorante (20 a 45%). Sin embargo, el fotocatalizador K-10 mostró los mejores resultados (más del 98% de eliminación) debido a su alta área superficial y la dispersión de TiO2. Los resultados obtenidos utilizando los fotocatalizadores se compararon con el proceso de oxidación electroquímica utilizando ánodo Ti/Pt, evidenciando que la reacción de fotocatálisis es más eficiente. Nuestros resultados muestran el potencial de estos catalizadores para aplicaciones ambientales.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[methylene blue]]></kwd>
<kwd lng="en"><![CDATA[montomillonite]]></kwd>
<kwd lng="en"><![CDATA[pillared clays]]></kwd>
<kwd lng="en"><![CDATA[photocatalysis]]></kwd>
<kwd lng="en"><![CDATA[catalysts]]></kwd>
<kwd lng="en"><![CDATA[electrochemical oxidation]]></kwd>
<kwd lng="es"><![CDATA[azul de metileno]]></kwd>
<kwd lng="es"><![CDATA[montmorillonita]]></kwd>
<kwd lng="es"><![CDATA[arcillas pilares]]></kwd>
<kwd lng="es"><![CDATA[fotocatálisis]]></kwd>
<kwd lng="es"><![CDATA[catalizadores]]></kwd>
<kwd lng="es"><![CDATA[oxidación electroquímica]]></kwd>
</kwd-group>
</article-meta>
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