Preparation of alginate foam via freeze-drying and post-cross-linking method and its application for dye removal from aqueous solution

Document Type : Research paper

Authors

1 Chemical Engineering, ACECR Institute of Higher Education (Isfahan Branch), Isfahan, Iran

2 ACECR Institute of Higher Education (Isfahan Branch), Isfahan, Iran

Abstract

Adsorption is an effective method for the treatment of dyed wastewater contaminants the aqueous environments. In this study, an alginate-based foam adsorbent was prepared via freeze-drying and post-cross-linking method and then used to remove methylene blue dye from aqueous solutions. Characterization using different analyzes, kinetics, isotherm, swelling, and regeneration experiments, and the parameters affecting the dye adsorption process such as dye concentration (2-10 mg/L), pH (3-11) were investigated. The findings obtained from the adsorption process indicated that the adsorption of methylene blue using synthetic adsorbents has good conformity with conventional kinetic and isotherm models and the kinetics and isotherm are adjusted with the pseudo-second-order and the Freundlich models, respectively. The adsorption capacity of methylene blue was 3.80 mg/g with 97% removal efficiency for alginate-based foam. With the increase in initial solution pH and dye concentration, better adsorption performance was observed. The prepared adsorbent presented remarkable chemical stability and was readily recyclable after three reuse cycles.

Keywords

References

[1]     S. Rezaei, et al. (2021( "Optimization by Response Surface Methodology of the Adsorption of Anionic Dye on Superparamagnetic Clay/Maghemite Nanocomposite". Russian Journal of Applied Chemistry. 94(4). 533-548.
 
[2]    M. Sadeghi, et. al. (2021( "Photocatalytic and photo‐fenton processes by magnetic nanophotocatalysts for efficient dye removal". J Mater Sci: Mater Electron, 32. 5065–5081.
 
[3]   M. Mohammadian, et. al. (2021( "Photo-assisted advanced oxidation processes for efficient removal of anionic and cationic dyes using Bentonite/TiO2 nano-photocatalyst immobilized with silver nanoparticles". Journal of Molecular Structure. 1239. 130496.
 
[4]     Z. Hamami, et. al. (2021( "Biosynthesis of copper oxide nanoparticles using biomass, peel, and extract polysaccharides of S. Tuberosum for ultrasound‐assisted adsorption of azo direct red 80 contaminants. Ceramics International, 47(17). 24170-24181.
 
[5]    Z. Vaez, et. al. (2020( "Synthesis, characterization and photocatalytic activity of ZSM-5/ZnO nanocomposite modified by Ag nanoparticles for methyl orange degradation. Journal of Photochemistry and Photobiology A: Chemistry. 388. 112064.
 
[6]    R. Nowruzi, et. al. (2020( "Synthesis of a chitosan/polyvinyl alcohol/activate carbon biocomposite for removal of hexavalent chromium from aqueous solution. International journal of biological macromolecules. 147. 209-216.
 
[7]   Mahmoodi, M. et. al. (2021( "Fabrication of Zn-based magnetic zeolitic imidazolate framework bionanocomposite using basil seed mucilage for removal of azo cationic and anionic dyes from aqueous solution. International Journal of Biological Macromolecules. 167. 1076-1090.
 
[8]   N. Marsiezade, et. al. (2021( "Novel hollow beads of carboxymethyl cellulose/ZSM-5/ZIF-8 for dye removal from aqueous solution in batch and continuous fixed bed systems. International Journal of Biological Macromolecules. 162. 1140-1152.
 
[9]       J. Kazemi, et. al. (2021( "Alginate beads impregnated with magnetic Chitosan@ Zeolite nanocomposite for cationic methylene blue dye removal from aqueous solution. International journal of biological macromolecules. 154. 1426-1437.
 
[10] K. Badvi, et. al. (2021( "Enhanced photocatalytic degradation of dye contaminants with TiO2 immobilized on ZSM-5 zeolite modified with nickel nanoparticles. Journal of Cleaner Production. 280(2).
 
[11]   V.K. Gupta, et al., (2020( "Sequestration of toxic congo red dye from aqueous solution using ecofriendly guar gum/activated carbon nanocomposite. International journal of biological macromolecules. 158. 1310-1318.
 
[12] R. Aravindhan, et. al. (2007) “Equilibrium and thermodynamic studies on the removal of basic black dye using calcium alginate beads. Colloids and Surfaces A. 299.232-238.
 
[13] K. Kadirvelu, et. al. (2003( "Utilization of various agricultural wastes for activated carbon preparation and application for the removal of dyes and metal ions from aqueous solutions. Bioresource technology. 87(1). 129-132.
 
[14]     A. Lopez , et al. (2021( "Ozonation of azo dye in a semi- batch reactor: A determination of the molecular and radical contribution. Chemosphere. 66. 2120-2126.
 
Journal of Separation Science and Engineering
Volume 14, Issue 1
September 2022
Pages 1-12

Files

Share

How to cite

Statistics