CHARACTERIZATION OF A COCONUT PULP - MAGNETITE COMPOSITE APPLICABLE TO THE ADSORPTION OF CHROMIUM VI BY IR, XRD, EDS AND SEM

Referencia Apresentador Autores
(Instituição)
Resumo
IId04-001
Fatima Yubero Yubero, F.(Faculty of Chemical Sciences. National University of Asuncion); Lopez, M.(Faculty of Chemical Sciences. National University of Asuncion); Franco, S.(Faculty of Chemical Sciences. National University of Asuncion); Gonzalez, Y.(Faculty of Chemical Sciences. National University of Asuncion); Monteiro, M.M.(Universidad Nacional de Asunción); Arguello, J.(Chemistry Institute.Federal University of Rio Grande do Sul); Diez Perez, D.B.(Faculty of Chemical Science. National University of Asuncion); Degen, R.(Faculty of Chemical Science. National University of Asuncion); The dried powder of the coconut pulp fruit Acrocomia aculeata is discarded in large quantities. This powder was used to synthesize a stable coconut pulp-magnetite composite in aqueous solution. The objective of this work was to analyze the composite by various materials characterization techniques and assess their ability to retain chrome on its surface. The material analysis and characterization techniques used in this experimental study were Attenuated Reflectance Infrared (ATR) and Fourier Transform Infrared (FTIR), X Ray Diffraction (XRD), spectroscopy of dispersive energy (EDX) and scanning electronic microscopy (SEM). Besides, it was applied the Langmuir isotherm to verify the adsorption of chromium VI on composite surface. The results indicate that the coconut pulp-magnetite composite presents appropriate characteristics of surface and functional groups and it is able to adsorb chrome on its surface. Thus, it could be applied in the future to an electro-analytical detection system.
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