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BIBTEX RIS

Síntese e caracterização de argilas organofílicas contendo diferentes teores do surfactante catiônico brometo de hexadeciltrimetilamônio

2011; Brazilian Chemical Society; Volume: 34; Issue: 7 Linguagem: Inglês

10.1590/s0100-40422011000700009

ISSN

1678-7064

Autores

Christian W. Lopes, Fábio G. Penha, Renata Martins Braga, Dulce Maria de Araújo Melo, Sibele B. C. Pergher, Diego Ivan Petkowicz,

Tópico(s)

Polymer Nanocomposites and Properties

Resumo

CATIONIC SURFACTANT HEXADECYLTRIMETHYLAMMONIUM BROMIDE.The major applications of organoclays are in adsorption of organic polluents.The objective of this work was the synthesis and characterization of organoclays using differents amounts of cationic surfactant hexadecyltrimethylammonium bromide.The clays were characterized by low angle x-ray diffraction (XRD), scanning electron microscope (SEM), infrared with Fourier tranformation (FTIR), BET surface area, elemental analysis (CHN), Foster swell and adsorption of methylene blue.The surfactant can adsorb in differents forms in the interlamelar region changed the basal spacing.The presence of the surfactant adsorbed can be favorable or not in adsorption of the methylene blue due the different interactions dye-organoclays.

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