Omid Jawhid - Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
Gholam Hossein Zohuri - Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran- Environmental Chemistry Research Centre. Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran

Cellulose is recognized as the most abundant biopolymer in nature offer wide chance to beused for superior applications such as water purification [1,2]. It is natural, renewable, environmentallyfriendly, efficient and cost-effective, sustainable, bio–degradable and derived alsoeasily from plant sources [3]. In this context, fully biobased and crosslinked adsorbent polymerSchiff base was prepared by using oxidation reaction of extracted cellulose biopolymer.A safe crosslinked cellulose dialdehyde (CCDA) was synthesized through epichlorohydrinand sodium metaperiodate (NaIO4) followed by Schiff base formation with pphenylenediamine[Fig. 1]. Crosslinking, oxidation and Schiff base formation of the extractedcellulose was confirmed by using FTIR spectrum. The index bonds of crosslinked cellulose(CC), CCDA and the crosslinked cellulose Schiff base (CCSch) were appeared at about 3419,1727 and 1607 cm-1 respectively. The prepared imine bands and microstructure of the synthesizedproduct was investigated from EDS and SEM analyses.(Project code 3/47733)