Comparative studies of chitosan and its nanoparticles for the adsorption efficiency of various dyes.
Int J Biol Macromol
; 104(Pt B): 1449-1458, 2017 Nov.
Article
em En
| MEDLINE
| ID: mdl-28554794
ABSTRACT
Chitosan has been considered as a chelating agent with the potential for the adsorption of dyes, metal ions and proteins. This study was aimed to prepare and characterize different fungal chitosan nanoparticles (FCI-1 to FCI-6 NPs) by ionic gelation method and to evaluate its efficacy on the sorption of various commercial dyes. Morphological observations showed that the FCI-1 is nearly spherical in shape with particle size ranging from 2 to 30nm, as determined by electron microscopic studies. Electron micrograph revealed that FCI-1 NPs were stable even after eighteen months of storage at 4°C. Adsorption efficiencies of FCI-1 NPs and FCI-1 were estimated against various dyes such as RBB, MO, DR, NBB and CSB using spectrophotometry. Out of the dyes tested, FCI-1 NPs showed better adsorption efficiency for CSB whereas only RBB followed Langmuir isotherm. The adsorption of remaining dyes may probably be through random adsorption. The results indicated that FCI-1 NPs could be used as efficient sorbents in treating industrial dye effluents.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
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Quitosana
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Corantes
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Nanopartículas
Idioma:
En
Revista:
Int J Biol Macromol
Ano de publicação:
2017
Tipo de documento:
Article