Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/6971
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Type: Artigo de Periódico
Issue Date: May-2015
Authors: SANTOS, Davis Castro dos
ADEBAYO, Matthew Ayorinde
LIMA, Éder Cláudio
PEREIRA, Simone de Fátima Pinheiro
CATALUÑA VESES, Renato
SAUCIER, Caroline
THUE, Pascal Silas
MACHADO, Fernando Machado
Title: Application of carbon composite adsorbents prepared from coffee waste and clay for the removal of reactive dyes from aqueous solutions
Citation: SANTOS, Davis Castro dos et al. Application of carbon composite adsorbents prepared from coffee waste and clay for the removal of reactive dyes from aqueous solutions. Journal of the Brazilian Chemical Society, São Paulo, v. 26, n. 5, p. 924-938, maio 2015. Disponível em: <http://www.scielo.br/pdf/jbchs/v26n5/0103-5053-jbchs-26-05-0924.pdf>. Acesso em: 5 nov. 2015. <http://dx.doi.org/10.5935/0103-5053.20150053>.
Abstract: A novel carbon composite was prepared from a mixture of coffee waste and clay with inorganic:organic ratio of 1.3 (CC-1.3). The mixture was pyrolysed at 700 °C. Considering the application of this adsorbent for removal of anionic dyes, the CC-1.3 was treated with a 6 mol L-1 HCl for 24 h to obtain ACC-1.3. Fourier transform infrared (FTIR), N2 adsorption/desorption curves, scanning electron microscope (SEM) and powder X-ray diffractometry (XRD) were used for characterisation of CC-1.3 and ACC-1.3 carbon adsorbents. The adsorbents were effectively utilised for removal of reactive blue 19 (RB-19) and reactive violet 5 (RV-5) textile dyes from aqueous solutions. The maximum amounts of RB-19 dye adsorbed at 25 °C are 63.59 (CC-1.3) and 110.6 mg g-1 (ACC-1.3), and 54.34 (CC-1.3) and 94.32 mg g-1 (ACC-1.3) for RV-5 dye. Four simulated dye-house effluents were used to test the application of the adsorbents for treatment of effluents.
Keywords: Adsorção
Compostos de carbono
Efluentes industriais
ISSN: 1678-4790
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - FAQUI/ICEN

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