2024 : 12 : 14
Alireza Karimi

Alireza Karimi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-5006-8642
Education: PhD.
ScopusId: 57217189368
HIndex:
Faculty: Science
Address: Arak University
Phone:

Research

Title
Advanced superparamagnetic cross-linked chitosan-based biosorbent hydrogel for efficient removal of indigo carmine dye from water: Adsorption isotherms, kinetics, and thermodynamic studies
Type
JournalPaper
Keywords
chitosan, cross-linked, indigo carmine, porous hydrogel, superparamagnetic
Year
2024
Journal Polymers for Advanced Technologies
DOI
Researchers Farnaz Azadikhah ، maryam ghaderi ، Hesam Khorsandi ، Alireza Karimi

Abstract

Water contamination from industrial dyes poses a significant threat to the environment and human health. This study focuses on the development of advanced porous cross-linked chitosan-based hydrogels and superparamagnetic hydrogel nanocomposites for efficient removal of indigo carmine (IC) dye from water. The hydrogels were cross-linked using benzophenonetetracarboxylic dianhydride (BTDA) and incorporated functionalized magnetic iron nanoparticles (CP-MNPs). A comparative study revealed that the superparamagnetic hydrogel nanocomposite exhibited superior performance in IC dye adsorption. Higher IC removal efficiencies were observed at lower amounts of cross-linker, pH, and adsorbent dosage. The superparamagnetic hydrogel nanocomposite demonstrated superior IC dye adsorption compared with the chitosan hydrogel. The adsorption process followed a pseudo-second-order kinetic model and Langmuir isotherm model. Thermodynamic data indicated that the adsorption onto the superparamagnetic hydrogel nanocomposite was endothermic and spontaneous, making it a promising material for environmental applications.