Preparação e caracterização de carvão ativado produzido a partir de resíduos do beneficiamento do café
Data
2008
Autores
Brum, Sarah Silva
Bianchi, Maria Lucia
Silva, Vanésia Liane da
Gonçalves, Maraísa
Guerreiro, Mário César
Oliveira, Luiz Carlos Alves de
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
Coffee fruit processing is one of the most polluting activities in agriculture due to the large amount of waste generated in the process. In this work, coffee parchment was employed as precursor for the production of carbons activated with ZnCl2 (CAP). The material was characterized using N2 adsorption/desorption at 77 K, Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The material showed a surface area of 521.6 m²g-1 and microporous structure. CAP was applied as adsorbent for the removal of methylene blue dye in aqueous medium. The adsorption capacity was found to be about 188.7 mg g-1.
Descrição
Palavras-chave
Activated carbon, Coffee waste, Adsorption
Citação
BRUM, S. S. et al. Preparação e caracterização de carvão ativado produzido a partir de resíduos do beneficiamento do café. Química Nova, São Paulo, v. 31, n. 5, p. 1048-1052, 2008.