| Literature DB >> 28554794 |
A Shajahan1, S Shankar2, A Sathiyaseelan2, Karthik S Narayan2, V Narayanan3, V Kaviyarasan2, S Ignacimuthu4.
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.Entities:
Keywords: Adsorption; Dyes; Fungal chitosan; Ionic gelation; Langmuir isotherm; Nanoparticles; TPP
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Year: 2017 PMID： 28554794 DOI： 10.1016/j.ijbiomac.2017.05.128
Source DB: PubMed Journal: Int J Biol Macromol ISSN： 0141-8130 Impact factor: 6.953