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dc.contributor.advisorHernández Maldonado, Arturo J.
dc.contributor.authorGonzález-Ramos, Karen M.
dc.date.accessioned2018-10-10T19:31:44Z
dc.date.available2018-10-10T19:31:44Z
dc.date.issued2014
dc.identifier.urihttps://hdl.handle.net/20.500.11801/1008
dc.description.abstractPharmaceutical and personal care products (PPCPs) have emerged in surface water in concentration levels enough to categorize them as “emerging contaminants” due to a lack of efficient wastewater treatment plant removal methods. Of several potential alternatives for remediation, only separation via adsorption at ambient conditions eliminates the risk of unwanted side products. The impetus for this contribution is the possibility of combining the hydrophobic nature of carbons with the unique adsorbent-adsorbate interactions provided by a transition metal based faujasite zeolite. A quasi-ordered (CFAU) composite was hydrothermally synthesized and decorated with extraframework transition metal centers (Ni2+ or Cu2+). The CFAU variants were fully characterized and performance was assessed via salicylic acid (a high occurrence PPCP) equilibrium adsorption tests at ambient conditions. The salicylic acid equilibrium adsorption capacities increased as follows: FAU < Activated Carbon < CFAU < Ni2+ -CFAU << Cu2+ -CFAU, proving the synergistic composite is a promising alternative for PPCP remediation.
dc.description.abstractRastros de productos farmacéuticos y de cuidado personal (PPCP) se han hallado en cuerpos de agua a niveles de concentración lo suficientemente alarmantes para considerarlos como “contaminantes emergentes”. De varias posibles iniciativas para su remoción, sólo el fenómeno de adsorción a condiciones ambientales elimina la posibilidad de productos secundarios. El objetivo de esta contribución es la posibilidad de combinar la naturaleza hidrofóbica del carbón con las interacciones sorbato-sorbente particulares de una zeolita tipo faujasita modificada con metales de transición. Un compuesto semi-ordenado de carbón activado y faujasita (CFAU) fue sintetizado hidrotermálmente y modificado con los metales Ni2+ o Cu2+. Las variantes de CFAU fueron caracterizadas y su desempeño establecido mediante pruebas de adsorción en equilibrio de ácido salicílico (un PPCP de alta incidencia) a condiciones ambientales. Las capacidades de adsorción fueron las siguientes: FAU < Carbón Activado < CFAU < Ni2+ - CFAU << Cu2+ -CFAU, evidenciando que dado al comportamiento sinérgico, CFAU es una alternativa prometedora para la remediación de contaminantes emergentes.
dc.description.sponsorshipChemical Engineering Department at the University of Puerto Rico at Mayagüez, NASA Center for Advanced Nanoscale Materials, National Science Foundationen_US
dc.language.isoenen_US
dc.subjectPharmaceutical and personal care productsen_US
dc.subjectEmerging contaminantsen_US
dc.subjectPorous carbon-faujasite compositesen_US
dc.subject.lcshEmerging contaminants in wateren_US
dc.subject.lcshAdsorptionen_US
dc.subject.lcshZeolitesen_US
dc.subject.lcshMesoporous materialsen_US
dc.subject.lcshSalicylic aciden_US
dc.subject.lcshCarbon compositeen_US
dc.subject.lcshTransition metalsen_US
dc.titlePorous carbon-faujasite composites containing transition metals for aqueous phase adsorption applicationsen_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2014 Karen M. González-Ramosen_US
dc.contributor.committeeCuret-Arana, María C.
dc.contributor.committeeSuleiman-Rosado, David
dc.contributor.committeeRomán, Félix R.
dc.contributor.representativeHernández-Rivera, Samuel
thesis.degree.levelM.S.en_US
thesis.degree.disciplineChemical Engineeringen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Chemical Engineeringen_US
dc.description.graduationSemesterSummeren_US
dc.description.graduationYear2014en_US


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