2024 : 4 : 14
Mojgan Zendehdel

Mojgan Zendehdel

Academic rank: Professor
ORCID: https://orcid.org/0000-0003-1890-0317
Education: PhD.
ScopusId: 8613426000
Faculty: Science
Address: Arak University


Eco-friendly chitosan Schiff base as an efficient sensor for trace anion detection
Chemosensor, Chitosan, Schiff base, Cyanide, Anion detection
Journal Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Researchers Mojgan Zendehdel ، Saeid Amani Komaei ، Fatemeh Parchegani


Herein, a chitosan Schiff base sample (CSAN) was strategically designed and prepared via a two-step process. In the first step, an azo derivative of 1- naphthylamine namely, [2-hydroxy-5-(naphthalene-1-yldia zenyl) benzaldehyde] (HNDB) was synthesized as an aldehyde moiety. Then the condensation reaction of HNDB with chitosan afforded CSAN as the target product. Structural analyses of synthesized material were accomplished through FT-IR, 1H NMR, UV–Vis, XRD, TGA, and SEM spectral methods. Meanwhile, the heterogeneous CSAN was able to detect the presence of hydrogen carbonate (HCO3 ), acetate (AcO), and cyanide (CN) anions in semi-aqueous media (H2O/DMSO; 10:90%, v/v). Moreover, the selectivity of CSAN towards CN anion was increased through variation in solvent mixture ratios. Thereupon, CSAN was explored as a promising sensor towards CN anion in an aqueous media through considerable color variation from colorless to pale yellow as well as quantitative chemical analysis. Overall, reliable CSAN chemosensor with high sensitivity for mentioned anions has a pivotal role in practical applications owing to it’s reversibility ability.