Application of EDTA modified Fe3O4/sawdust carbon nanocomposites to ameliorate methylene blue and brilliant green dye laden water.
Environ Res
; 172: 43-54, 2019 05.
Article
en En
| MEDLINE
| ID: mdl-30769188
ABSTRACT
This work explored the potential of magnetic sawdust carbon nanocomposites for cationic dyes removal from aqueous medium. EDTA modified magnetic sawdust carbon nanocomposites (EDTA@Fe3O4/SC ncs) were prepared by biogenic green reduction and precipitation approach. The surface properties, structure and composition of nanocomposites were characterized by HRTEM, FESEM, XRD, EDX, BET, FTIR etc. The Fe3O4 nanoparticles were 10-20â¯nm in diameters and having 14â¯m2/g surface area. Removal of Methylene blue (MB) and Brilliant green (BG) dyes from aqueous medium was studied in batch mode experiments. The maximum removal was achieved at neutral pH 7.0 with in 30â¯min. Adsorption capacity of EDTA@Fe3O4/SC for MB and BG dyes was 227.3â¯mg/g and 285.7â¯mg/g, respectively. Dye adsorption behaviour is well explained by Freundlich model. The rate of cationic dye adsorption is explained by pseudo-second order model. The value of thermodynamic parameters confirmed that adsorption process was spontaneous and favourable. Desorption and reusable efficiency of nanocomposites was also evaluated.
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Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
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Carbono
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Agua
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Ácido Edético
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Purificación del Agua
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Nanocompuestos
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Compuestos de Amonio Cuaternario
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Azul de Metileno
Idioma:
En
Año:
2019
Tipo del documento:
Article