Removal of Methylene Blue Dye from an Aqueous Solution by an Adsorption Technique Using Sulfonated Polystyrene as Three Low-cost Adsorbents

Document Type : Review Article

Authors

1 Laboratory of Organic Electrolytes and Polyelectrolytes Application (LAEPO). Department of Chemistry, Faculty of Science, Tlemcen University, Algeria

2 Laboratory of Organic Electrolytes and Polyelectrolytes Application (LAEPO). Department of Chemistry, Faculty of Science, Tlemcen University, Algeria. Higher School of Applied Sciences of Tlemcen-ESSAT, Algeria

10.22036/pcr.2023.400270.2350

Abstract

In this study, three alternative techniques were used to recycle expanded polystyrene waste (WPS). Sulfonated polystyrene (PSS)-based materials (PSS-01, PSS-02, and PSS-03) were produced and employed as efficient and reasonably priced adsorbents. The findings demonstrated that the clearance efficiency of expanded polystyrene increased from 13.6% for pH = 3 to 21% at pH = 9. The removal capacity for sulfonated polystyrenes, which varied from 60% to 85% and 98% for PSS-01, PSS-02, and PSS-03, respectively, did not alter over the pH range. Furthermore, the removal effectiveness of the sulfonated polystyrenes was unaffected by increasing the starting dye concentration. However, for a methylene blue (MB) concentration of 200 mg. L-1, the removal capacity employing PSS-02 significantly decreased and fell to less than 62%. The elimination rate of the dye by PSS-03 at the ideal contact duration of 15 min was more incredible than 98.2% at the ideal amount of 20 mg. Undoubtedly, the results showed that MB adsorption corresponded to the Langmuir isotherm for WPS and PSS-02 and the Freundlich isotherm for PSS-01 and PSS-03, and adsorption kinetic models for the three copolymers produced pseudo-second order. PSS-03's adsorption capability increased because of its hydrophilic sites and higher adsorbent surface area

Graphical Abstract

Removal of Methylene Blue Dye from an Aqueous Solution by an Adsorption Technique Using Sulfonated Polystyrene as Three Low-cost Adsorbents

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History

  • Receive Date: 02 June 2023
  • Revise Date: 05 September 2023
  • Accept Date: 07 October 2023

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