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BIBTEX RIS

Preparação de carvão ativado em baixas temperaturas de carbonização a partir de rejeitos de café: utilização de FeCl3 como agente ativante

2008; Brazilian Chemical Society; Volume: 31; Issue: 6 Linguagem: Inglês

10.1590/s0100-40422008000600004

ISSN

1678-7064

Autores

Elaine I. Pereira, Luiz C.A. Oliveira, Andréa Vallone, Karim Sapag, Márcio C. Pereira,

Tópico(s)

Fiber-reinforced polymer composites

Resumo

ALTERNATIVE ACTIVATING AGENT.Ferric chloride as a new activating agent was used to obtain activated carbons from agroindustrial waste.This material was prepared at three temperatures of pyrolysis, 200, 280 and 400 o C. The carbonaceous materials obtained after the activation processes showed high specific surface areas (BET), with values higher than 900 m 2 g -1 .The materials showed different behaviors in the adsorption of methylene blue dye and reactive red textile dye in water solutions.An important fact in the use of FeCl 3 as an activating agent is that the activation temperature is at 280 o C, well below of those commonly employed in chemical or physical activations described in the literature.

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