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Dye Adsorbent from Natural Rubber Latex Foam: Efficiency and Post-Utilization
Abdulhakim Masa1, Nureeyah Jehsoh2, Nabil Hayeemasae2
1Rubber Engineering Program, Department of Interdisciplinary Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90110, Thailand.
Polymers
|January 11, 2025
Summary
Natural rubber latex foam effectively removes Methylene Blue and Alizarin Yellow dyes. This dye-adsorbent foam also exhibits antibacterial properties, inhibiting bacterial growth.
Area of Science:
- Materials Science
- Environmental Science
- Biotechnology
Background:
- Wastewater treatment requires efficient dye adsorbents.
- Natural rubber (NR) latex foam presents a potential sustainable material for adsorption and antibacterial applications.
Purpose of the Study:
- To evaluate the efficacy of NR latex foam as a dye adsorbent for Methylene Blue (MB) and Alizarin Yellow (AY).
- To assess the antibacterial properties of NR latex foam after dye adsorption.
Main Methods:
- NR latex foam was optimized for density and tested for dye adsorption.
- Adsorption isotherms, kinetics, and thermodynamics were analyzed.
- Antibacterial activity against Gram-positive and Gram-negative bacteria was evaluated.
Main Results:
- Maximum adsorption capacities were predicted as 3.15 mg/g for MB and 10.31 mg/g for AY.
- Adsorption followed Langmuir (MB) and Freundlich (AY) isotherms, and a pseudo-second-order kinetic model.
- Physical adsorption was the primary mechanism, and the dye-loaded foam inhibited bacterial growth.
Conclusions:
- NR latex foam is a viable and dual-functional material for dye removal and antibacterial applications.
- The study demonstrates the potential of NR latex foam in environmental remediation and hygiene.
