Authors:
Silitonga Regina Dewi
1
;
Ginting Mimpin
2
and
Kaban Jamaran
2
Affiliations:
1
Postgraduate Chemistry Study Programme, Universitas Sumatera Utara, Medan, Indonesia
;
2
Department of Chemistry, Universitas Sumatera Utara, Medan
Keyword(s):
Adsorption, Chitosan, Diethylen Triamin, Epichlorohydrin, Grafting, Heavy Metal
Abstract:
In the current study, chitosan was modified using epichlorohydrin and diethylene triamine. Grafting diethylene triamine chitosan is synthesized through alkylation of chitosan with epichlorohydrin and followed by amination with diethylene triamine. The formation of chitosan grafted diethylene triamine was confirmed using FT-IR spectrum which has a band at 1581 cm-1 that assigned as C-N-C (secondary amine). The morphological analysis using SEM showed the surface became smoother after grafting process. As adsorbent, the chitosan grafted diethylene triamine had the adsorption capacity 72, 67, and 63 ppm for Cu2+, Zn2+, and Fe2+, respectively.