Título: Industrial and Engineering Chemistry Research Pesquisar Publicações da Revista

Vol. 52 Nº 46

Páginas: 16427-16435

ISSN: 0888-5885

ISI Web of Knowledge - 24 Citações

ISI Web of Science

Scopus - 42 Citações

FOS: Ciências da engenharia e tecnologias > Engenharia do ambiente

CORDIS: Ciências Tecnológicas > Tecnologia > Tecnologia ambiental

ID Authenticus: P-008-JEW

DOI: 10.1021/ie402038n

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9