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Bentonite from Porto Santo Island, Madeira Archipelago: surface properties studied by inverse gas chromatography
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Autores
Orientador(es)
Resumo(s)
The present paper shows the importance of Inverse Gas Chromatography (IGC) for
the determination of the surface properties of bentonites. These properties are dispersive surface
energy, acid-base properties, surface heterogeneity, sorption isotherms, BET surface areas and heat
of sorption, using different probe molecules. IGC can contribute to the interpretation, prediction and
optimization of the studied materials’ properties. The paper focuses on two distinctive bentonite
samples from Porto Santo Island, Madeira archipelago. In view of their potential value, achieved
through their incorporation in products for dermopharmacy and dermocosmetics, particle size and
particle surface properties are of fundamental importance.
Descrição
Palavras-chave
Inverse gas chromatography Bentonite Particle size and surfaces Surface properties Dermopharmacy Dermocosmetics . Faculdade de Ciências Exatas e da Engenharia
Contexto Educativo
Citação
Cordeiro, N., Silva, J., Gomes, C., & Rocha, F. (2010). Bentonite from Porto Santo Island, Madeira archipelago: surface properties studied by inverse gas chromatography. Clay Minerals, 45(1), 77-86.
Editora
Cambridge University Press