Analytical methodologies based on chemometrics to optimize the photodegradation of dyes
The main aim of this thesis is the development of rapid analytical methodologies to optimize the photodegradation processes of organic azo dyes from industrial wastewater. A bibliographic review has been done concerning the most employed processes for dye removal and the analytical techniques used f...
| Autor: | |
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Universitat Rovira i virgili (URV) |
| Repositorio: | Repositori Institucional de la Universitat Rovira i Virgili |
| OAI Identifier: | oai:urv.cat:TDX:1035 |
| Acceso en línea: | https://hdl.handle.net/20.500.11797/TDX1035 http://hdl.handle.net/10803/76336 |
| Access Level: | acceso abierto |
| Palabra clave: | 543 - Química analítica 54 - Química |
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Analytical methodologies based on chemometrics to optimize the photodegradation of dyesFernández Barrat, Cristina543 - Química analítica54 - QuímicaThe main aim of this thesis is the development of rapid analytical methodologies to optimize the photodegradation processes of organic azo dyes from industrial wastewater. A bibliographic review has been done concerning the most employed processes for dye removal and the analytical techniques used for the monitoring and the identification of intermediates. New analytical methodologies based on chemometric tools such as experimental designs have been established to optimize photodegradation processes with and without using heterogeneous catalysts. Multivariate curve resolution has been employed to determine simultaneously different dyes and intermediates along degradation processes. Since the degradation rate is the most employed parameter to evaluate the photodegradation efficiency all the kinetic constants involved in the degradation and/or the adsorption of the dye onto the catalyst have been evaluated by HS-MCR-ALS. Furthermore a rapid analytical methodology for dye determination based on sequential injection chromatography (SIC) has been established.El objeto de la presente tesis es el desarrollo de metodologías analíticas rápidas para optimizar los procesos de degradación de colorantes orgánicos presentes en aguas residuales. Se ha llevado a cabo una revisión bibliográfica acerca de dichos procesos y las técnicas analíticas utilizadas para su monitorización y la identificación de posibles intermedios. Se han establecido nuevas metodologías analíticas basadas en herramientas quimiométricas tales como diseño de experimentos para optimizar procesos de fotodegradación con y sin catalizador. Se ha empleado resolución de curvas multivariante para la determinación simultánea de colorantes e intermedios durante estos procesos. Dado que la velocidad de degradación es el parámetro mas utilizado para evaluar la eficiencia de las fotodegradaciones se han evaluado todas las constantes involucradas en la degradación y/o la adsorción sobre el catalizador mediante HS-MCR-ALS. Se ha establecido una metodología analítica rápida para la determinación de colorantes basada en cromatografía de inyección secuencial (SIC).Universitat Rovira i Virgili Departament de Química Analítica i Química OrgànicaUniversitat Rovira i Virgili.2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdf183 p.https://hdl.handle.net/20.500.11797/TDX1035http://hdl.handle.net/10803/76336reponame:Repositori Institucional de la Universitat Rovira i Virgiliinstname:Universitat Rovira i virgili (URV)Inglésinfo:eu-repo/semantics/openAccessADVERTIMENT. L'accés als continguts d'aquesta tesi doctoral i la seva utilització ha de respectar els drets de la persona autora. Pot ser utilitzada per a consulta o estudi personal, així com en activitats o materials d'investigació i docència en els termes establerts a l'art. 32 del Text Refós de la Llei de Propietat Intel·lectual (RDL 1/1996). Per altres utilitzacions es requereix l'autorització prèvia i expressa de la persona autora. En qualsevol cas, en la utilització dels seus continguts caldrà indicar de forma clara el nom i cognoms de la persona autora i el títol de la tesi doctoral. No s'autoritza la seva reproducció o altres formes d'explotació efectuades amb finalitats de lucre ni la seva comunicació pública des d'un lloc aliè al repositori institucional de la Universitat Rovira i Virgili. Tampoc s'autoritza la presentació del seu contingut en una finestra o marc aliè a aquest repositori (framing). Aquesta reserva de drets afecta tant als continguts de la tesi com als seus resums i índexs.oai:urv.cat:TDX:10352026-06-23T12:42:27Z |
| dc.title.none.fl_str_mv |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes |
| title |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes |
| spellingShingle |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes Fernández Barrat, Cristina 543 - Química analítica 54 - Química |
| title_short |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes |
| title_full |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes |
| title_fullStr |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes |
| title_full_unstemmed |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes |
| title_sort |
Analytical methodologies based on chemometrics to optimize the photodegradation of dyes |
| dc.creator.none.fl_str_mv |
Fernández Barrat, Cristina |
| author |
Fernández Barrat, Cristina |
| author_facet |
Fernández Barrat, Cristina |
| author_role |
author |
| dc.contributor.none.fl_str_mv |
Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili. |
| dc.subject.none.fl_str_mv |
543 - Química analítica 54 - Química |
| topic |
543 - Química analítica 54 - Química |
| description |
The main aim of this thesis is the development of rapid analytical methodologies to optimize the photodegradation processes of organic azo dyes from industrial wastewater. A bibliographic review has been done concerning the most employed processes for dye removal and the analytical techniques used for the monitoring and the identification of intermediates. New analytical methodologies based on chemometric tools such as experimental designs have been established to optimize photodegradation processes with and without using heterogeneous catalysts. Multivariate curve resolution has been employed to determine simultaneously different dyes and intermediates along degradation processes. Since the degradation rate is the most employed parameter to evaluate the photodegradation efficiency all the kinetic constants involved in the degradation and/or the adsorption of the dye onto the catalyst have been evaluated by HS-MCR-ALS. Furthermore a rapid analytical methodology for dye determination based on sequential injection chromatography (SIC) has been established. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.11797/TDX1035 http://hdl.handle.net/10803/76336 |
| url |
https://hdl.handle.net/20.500.11797/TDX1035 http://hdl.handle.net/10803/76336 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
| dc.format.none.fl_str_mv |
application/pdf 183 p. |
| dc.publisher.none.fl_str_mv |
Universitat Rovira i Virgili |
| publisher.none.fl_str_mv |
Universitat Rovira i Virgili |
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reponame:Repositori Institucional de la Universitat Rovira i Virgili instname:Universitat Rovira i virgili (URV) |
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Universitat Rovira i virgili (URV) |
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Repositori Institucional de la Universitat Rovira i Virgili |
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Repositori Institucional de la Universitat Rovira i Virgili |
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1869403130996719616 |
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15,301603 |