<?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>1665-2738</journal-id>
<journal-title><![CDATA[Revista mexicana de ingeniería química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Ing. Quím]]></abbrev-journal-title>
<issn>1665-2738</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Básicas e Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-27382016000100129</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Rutas de reacción para la degradación fotocatalítica de soluciones de fenol bajo diferentes condiciones experimentales]]></article-title>
<article-title xml:lang="en"><![CDATA[Reaction pathways for the photocatalytic degradation of phenol under different experimental conditions]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moctezuma]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Barragán]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zermeño-Resendiz]]></surname>
<given-names><![CDATA[B.B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Ciencias Químicas ]]></institution>
<addr-line><![CDATA[San Luis Potosí SLP]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<volume>15</volume>
<numero>1</numero>
<fpage>129</fpage>
<lpage>137</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-27382016000100129&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-27382016000100129&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-27382016000100129&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El fenol es un compuesto orgánico usado en la industria química para la fabricación de fibras sintéticas, aceites lubricantes, adhesivos, aspirina, enjuagues bucales y otros medicamentos. También es un compuesto recalcitrante que se ha detectado en los efluentes de las plantas de tratamiento de aguas residuales, por lo tanto se utiliza como compuesto modelo en los estudios de oxidación fotocatalítica. En este trabajo, se reportan los resultados del estudio de la oxidación de soluciones de fenol de alta concentración en un reactor de recirculación iluminado con luz UV, TiO2 y oxígeno u ozono. Los resultados indican que el fenol se mineraliza vía formación de hidroquinoana, benzoquinona, catecol y bencenotriol que a su vezse transforman a CO2. Aunque las reacciones de degradación y mineralización siguen una cinética de orden cero, la inyección de ozono en lugar de oxígeno como aceptor de electrones acelera las reacciones de degradación, ya que favorece la formación de benzoquinona y catecol. El cambio de la lámpara de luz negra por una lámpara germicida favorece la formación de bencenotriol que da por resultado un incremento en las velocidades de degradación y mineralización.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Phenol is an organic compound used in the chemical industry for the manufacture of synthetic fibers, lubricating oils, adhesives, aspirin, mouthwashes and other drugs. Also is a recalcitrant compound and it has been detected in effluent from conventional water treatment plants. Therefore, phenol is used as a model compound in photocatalytic oxidation processes. In this paper, the results of the study of the oxidation of phenol solutions of high concentration in a reactor recirculation illuminated with UV light, TiO2, oxygen or ozone are reported. The results show that phenol is mineralized via formation of hydroquinone, benzoquinone, catechol and benzenetriol, which in turn are transformed to CO2. Although the degradation and mineralization reactions follow zero-order kinetic rate equation, injecting ozone instead of oxygen as an electron acceptor accelerates all the degradation reactions and favors the formation of catechol and benzoquinone. Illumination of the reactor system with the germicidal lamp favors the mineralization of phenol via formation of benzenetriol and increases degradation and mineralization reaction rate.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fenol]]></kwd>
<kwd lng="es"><![CDATA[fotocatálisis]]></kwd>
<kwd lng="es"><![CDATA[mecanismos de reacción]]></kwd>
<kwd lng="es"><![CDATA[planta piloto]]></kwd>
<kwd lng="en"><![CDATA[phenol]]></kwd>
<kwd lng="en"><![CDATA[photocatalysis]]></kwd>
<kwd lng="en"><![CDATA[reaction mechanism]]></kwd>
<kwd lng="en"><![CDATA[pilot plant]]></kwd>
</kwd-group>
</article-meta>
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