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Javad Zolgharnein

Javad Zolgharnein

Academic rank: Professor
ORCID: http://orcid.org/0000-0003-3889-0128
Education: PhD.
ScopusId: 6602705315
Faculty: Science
Address: Arak University
Phone:

Research

Title
Nano-Fe3O4 and corn cover composite for removal of Alizarin Red S from aqueous solution: characterization and optimization investigations
Type
JournalPaper
Keywords
Adsorption; Impregnated corn cover; Nano-Fe3O4; Box–Behnken design
Year
2016
Journal Desalination and Water Treatment
DOI
Researchers Javad Zolgharnein ، Zahra Choghaei ، MARYAM BAGTASH ، Shahab Feshki ، Mahdie Rastgordani ، Peyman Zolgharnein

Abstract

In this study, Fe3O4 nanoparticles impregnated onto corn cover were investigated as new composite sorbent for removing Alizarin Red S from aqueous solutions in a batch system. The main effective variables were examined on removal efficiency such as pH, sorbent dosage (m), and initial concentration of dye (Cd). Response surface methodology involving a Box–Behnken design for modeling the effective factors and their interactions was employed to optimize the removal percent (R%) of Alizarin Red S dye. The best conditions for the suggested model was found to be the maximum removal percent of dye in pH 2, Cd = 10 mg/L and m = 0.2 g. The kinetics, isotherm modeling, and thermodynamic studies of adsorption Alizarin Red S were conducted. A second-order kinetic model is favorable for the dynamic behavior of the adsorption process. Thermodynamic studies indicate that the adsorption system was spontaneous and exothermic. Moreover, the structure and morphology of nanocomposite sorbent were examined by means of X-ray diffraction, EDX analysis, and scanning electron microscopy. Beside, FT-IR analyses were performed to characterize the functional groups which were involved in the adsorption process.