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    dc.contributor.authorTovar Zapata, Aldair-
    dc.date.accessioned2022-12-01T22:48:46Z-
    dc.date.available2018-09-18-
    dc.date.available2022-12-01T22:48:46Z-
    dc.date.issued2018-
    dc.identifier.citationTovar Zapata, A. (2018). Obtención de carbón activado a partir de cáscara de piñón (Pinus Patula) y evaluación en la remoción de Cromo (VI) en solución acuosa [Trabajo de Grado Pregrado, Universidad de Pamplona] Repositorio Hulago Universidad de Pamplona. http://repositoriodspace.unipamplona.edu.co/jspui/handle/20.500.12744/5030es_CO
    dc.identifier.urihttp://repositoriodspace.unipamplona.edu.co/jspui/handle/20.500.12744/5030-
    dc.descriptionSe obtuvieron carbones activados (CAs) a partir de la cascara del piñón, por activación química con H3PO4; dos muestras, una original sintetizada de carbón activado (CASCN), y otra funcionalizada con celulosa (CACCN) se caracterizaron estudiando el comportamiento de ácido-base, teniendo una diferencia de 2,056 meq/g y 1,953 meq/g respectivamente, lo que demostró la presencia más sitios ácidos que básicos. El anterior resultado se comprobó con el punto (pH) de carga cero (pHPCC) que dio un valor aproximado de 2,5 para ambos casos. Se evaluaron, los dos adsorbentes en dos concentraciones de Cr, 100 ppm y 250 ppm en pH ácido (1) y pH básico (8). Los datos experimentales para determinar el área superficial se ajustaron a varios modelos de isotermas, siendo la de Freundlich la que mejor se ajustó; se determinaron áreas de 955 y 1485 m2 /g, respectivamente. Finalmente se obtuvo una mayor remoción del 89,89 % para CACCN, en solución de pH 1 y concentración de Cr de 100 mg/L.es_CO
    dc.description.abstractActivated carbons (CAs) were obtained from the pinion shell, by chemical activation with H3PO4; Two samples, an original synthesized activated carbon (CASCN), and another functionalized with cellulose (CACCN) were characterized by studying the behavior of acid-base, having a difference of 2.056 meq/g and 1.953 meq/g respectively, which showed the presence more acid than basic sites. The previous result was checked with the point (pH) of zero load (pHPCC) that gave an approximate value of 2.5 for both cases. The two adsorbents were evaluated in two concentrations of Cr, 100 ppm and 250 ppm in acid pH (1) and basic pH (8). The experimental data to determine the surface area were adjusted to several models of isotherms, with Freundlich being the one that was best adjusted; areas of 955 and 1485 m2 /g, respectively, were determined. Finally, a greater removal of 89.89% was obtained for CACCN, in solution of pH 1 and Cr concentration of 100 mg/L.es_CO
    dc.format.extent48es_CO
    dc.format.mimetypeapplication/pdfes_CO
    dc.language.isoeses_CO
    dc.publisherUniversidad de Pamplona – Facultad de Ingenieras y Arquitectura.es_CO
    dc.subjectAbsorción.es_CO
    dc.subjectCarbón activado.es_CO
    dc.subjectIsoterma.es_CO
    dc.subjectMetal pesado.es_CO
    dc.subjectPinus patula.es_CO
    dc.titleObtención de carbón activado a partir de cáscara de piñón (Pinus Patula) y evaluación en la remoción de Cromo (VI) en solución acuosa.es_CO
    dc.typehttp://purl.org/coar/resource_type/c_7a1fes_CO
    dc.date.accepted2018-06-18-
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    dc.type.coarversionhttp://purl.org/coar/resource_type/c_2df8fbb1es_CO
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