Synthesis and Characterization of Alginate Encapsulated Zirconium-Based Ferromagnetic Sorbent for Adsorptive Removal of Dyes

  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract

    This paper provides insight on the removal of dyes from water using magnetic separation technique. A new alginate encapsulated zirconium-based encapsulated ferromagnetic sorbent has been synthesized by co-precipitation and electrostatic extrusion techniques. The ferromagnetic sorbent has the alginate as outer polymeric shell and zirconium-based iron oxides as inner ferromagnetic cores. The sorbent has the multi-functional properties as it is can be easily separated using external magnetic force, and effective in adsorptive removal of congo red, methyl violet, and methylene blue dyes. The sorbent was characterized by particle size analyser, Scanning Electron Microscope (SEM), Thermal Gravimetric-Differential Thermal Analyzer (TG-DTA), and Fourier Transform Infrared Spectroscopy (FT-IR).  Adsorption assays were performed in batch using methyl violet, methylene blue, and congo red dyes as contaminants. The alginate encapsulated zirconium-based ferromagnetic sorbent was a potential candidate for removal of dyes under a magnetic field as separating agent. The present investigation demonstrates the ferromagnetic sorbent exhibiting good performance to remove the methyl violet, congo red, and methylene blue dyes from aqueous solutions. The adsorption experiments reveal that the adsorption performance is higher for the cationic dye than the anionic dye. The SEM and FT-IR studies show that the interaction characteristics between the dyes and the ferromagnetic sorbent where the surface of the ferromagnetic sorbent became smoother and less porous when the metal-O group (Zr-O and Fe-O) of the ferromagnetic sorbent attaches to the dye.



  • Keywords

    Adsorption; Congo red; Dyes; Magnetic separation; Methyl blue; Methyl violet.

  • References

      [1] Dawood S, Sen TK (2012), Removal of anionic dye Congo red from aqueous solution by raw pine and acid-treated pine cone powder as adsorbent: Equilibrium, thermodynamic, kinetics, mechanism and process design. Water Research 46(6), 1933 – 1946.

      [2] Li YH, Du QJ, Liu TH, Sun JK, Wang YH, Wu SL, Wang ZH, Xia YZ, Xia LH (2013), Methylene blue adsorptin on graphene oxide/ calcium alginate composites. Carbohydrate Polymers 95, 501-507.

      [3] Qu JH (2008), Research progress of novel adsorption processes in water purification: A review. J. Environ. Sci. 20, 1–13.

      [4] Giraldo L, Erto A, Moreno-Piraján JC (2013), Magnetite nanoparticles for removal of heavy metals from aqueous solutions: synthesis and characterization. Adsorption 19(2–4), 465–474.

      [5] Zhang GS, Qu JH, Liu HJ, Liu RP, Li GT (2007), Removal mechanism of As(III) by a novel Fe−Mn binary oxide adsorbent: oxidation and sorption. Environ. Sci. Technol. 41(13), 4613–4619.

      [6] Long F, Gong JL, Zeng GM, Chen L, Wang XY, Deng JH, Niu QY, Zhang HY, Zhang XR (2011), Removal of phosphate from aqueous solution by magnetic Fe–Zr binary oxide. Chem. Eng. J. 171(2), 448–455.

      [7] Zheng YM, Lim SF, Chen JP (2009), Preparation and characterization of zirconium-based magnetic sorbent for arsenate removal. J. Colloid Interface Sci. 338(1), 22–29.

      [8] Yan L, Kong L, Qu Z, Li L, Shen G (2015), Magnetic biochar decorated with ZnS nanocrytals for Pb (II) removal. ACS Sustain. Chem. Eng. 3(1), 125–132.

      [9] Lee AYW, Lim SF, David Chua SN, Sanaullah K, Baini R, Abdullah MO (2017), Adsorption equilibrium for heavy metal divalent ions (Cu2+, Zn2+, and Cd2+) into zirconium-based ferromagnetic sorbent. Advances in Materials Science and Engineering, Article ID 1210673, doi: 10.1155/2017/1210673, 2017.

      [10] Lim SF, Chen JP (2007), Synthesis of an innovative calcium-alginate magnetic sorbent for removal of multiple contaminants. Applied Surface Science 253(13), 5772-5775.

      [11] Kusuktham B, Harburud S, Srikulkit K (2012), Thermal degradation of PET fabrics coated with interpenetrating polymer network – silica fume mixtures. Journal of Metals. Materials and Minerals 22(2), 119-124.

      [12] Zheng YM, Lim SF, Chen JP (2009), Preparation and characterization of zirconium-based magnetic sorbent for arsenate removal. J. Colloid Interface Sci.

      [13] Kong QS, Wang BB, Ji Q, Xia YZ, Guo ZX, Yu J (2009), Thermal degradation and flame retardancy of calcium alginate neads. Chinese Journal of Polymer Science 27(6), 807-812.

      [14] Hu L, Yang Z, Wang Y, Li Y, Fan D, Wu D, Wei Q, Du B (2017), Facile preparation of water soluble hyperbranched polyamine functionalized multiwalled carbon nanotubes for high-efficiency organic dye removal from aqueous solution. Nature: Scientific Reports 7, Article 3611.

      [15] Abdul Karim SK, Lim SF, Chua DSN, Salleh SF, Law PL (2016), Banana fibers as sorbent for removal of acid green dye from water. Journal of Chemistry, Article ID 9648312, doi:10.1155/2016/9648312.

      [16] Lim SF, Zheng YM, Zou SW, Chen JP (2009), Uptake of arsenate by an alginate-encapsulated magnetic sorbent: Process performance and characterization of adsorption chemistry. Journal of Colloid and Interface Science 333(1), 33-39.

      [17] Clothup NB, Daly LH, Wiberley SE (1990), Introduction to Infrared and Raman Spectroscopy, third ed., Academic Press, London.




Article ID: 16682
DOI: 10.14419/ijet.v7i3.18.16682

Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.