ADSORPTION STUDY OF METAL IONS BY BIOLOGICALLY SYNTHESIZED CHITOSAN/SnO2 NANOCOMPOSITES

Author (s) : R. RANJITHA and Dr.M.USHARANI

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Abstract :
Adsorption of heavy metal ions from the effluent is a major concern to protect the environment from pollution. This paper presented the preparation of chitosan/SnO₂ nanocomposite for the application of adsorption of heavy metal ions. Chitosan from carb shells were prepared by deacetylation processing of chitin. Chitosan was further converted into nanochitosan by simple stirring process. The prepared nanochitosan were characterized using FT-IR, XRD and SEM with EDX analytical techniques. Nanochitosan exhibit the size of about 20-40 nm. Biosynthesis of SnO₂ nanoparticles were carried out using the banana stem extract without the use of any external agents. Biologically synthesized SnO₂ nanocomposites were elucidated using FT-IR, XRD and SEM analysis. SnO₂ nanoparticles presented the nanosize of about 40 nm.  Further chitosan/SnO₂ nanocomposites were prepared by simple stirring process. Similar analytical techniques were used for the chitosan/SnO₂ nanocomposites nanocomposites and showed the nanosize of about 40 nm. Adsorption behavior of chitosan/SnO₂ nanocomposites were studied towards the heavy metal Co(II) ion. The prepared chitosan/SnO₂ nanocomposites presented good adsorption efficiency against heavy metal ion.

Keywords : Chitosan, SnO2, Biosynthesis, Adsorption

Conference Date : 30/08/2019

Pages : 48

Paper ID : 19046