Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/104002
Author(s): Ariana M. A. Pintor
Ana M. Silvestre Albero
Catarina I. A. Ferreira
Joana P. C. Pereira
Vítor J. P. Vilar
Cidalia M. S. Botelho
Francisco Rodríguez Reinoso
Rui A. R. Boaventura
Title: Textural and surface characterization of cork-based sorbents for the removal of oil from water
Issue Date: 2013
Abstract: This study evaluates the possibility of adding value to cork granulates, byproducts of cork processing, by using them as biosorbents and precursors of activated carbons. Activation was carried out by impregnation with phosphoric acid followed by pyrolysis under N2 flow. Furthermore, biosorbents were treated with a cationic surfactant and activated carbons were subject to a second pyrolysis under propene with the objective of improving hydrophobicity. Physico-chemical, textural, and surface characterization of the materials was carried out employing, among others, N2 adsorption isotherms, Fourier transform infrared (FTIR) spectroscopy, potentiometric titration, temperature programmed desorption (TPD), and immersion calorimetry. Selected samples were tested in the removal of sunflower oil emulsified in water. Activated carbons with higher surface area and lower amount of acidic surface groups showed higher uptake capacity for sunflower oil. © 2013 American Chemical Society.
Subject: Tecnologia ambiental, Engenharia do ambiente
Environmental technology, Environmental engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia do ambiente
Engineering and technology::Environmental engineering
URI: https://repositorio-aberto.up.pt/handle/10216/104002
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Programa de Financiamento Plurianual de Unidades de I&D/PEst-C/EQB/LA0020/2011/Projeto Estratégico-LA 20 - 2011-2012/LA 20
info:eu-repo/grantAgreement/Agência de Inovação, S.A./Projectos de I&DT em Co-Promoção/SI IDT - 13493/2010/Utilização de resíduos ou subprodutos da cortiça para a eliminação de óleos e gorduras de águas/HIDROCORK
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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