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Eco-Friendly Cellulose/Polyaniline Sponge for Water Remediation.
Juan C Medina-Llamas1, Fátima D G Rodríguez-Flores2, Isaac Olvera-López2
1Centro de Estudios Científicos y Tecnológicos No. 18, Instituto Politécnico Nacional, Zacatecas 98160, Mexico.
Materials (Basel, Switzerland)
|April 14, 2026
Summary
This study developed an eco-friendly polyaniline-coated cellulose sponge (PANI-CS) for efficient dye removal from water. The PANI-CS adsorbent demonstrated high capacity and rapid adsorption of methyl orange, showcasing its potential for industrial wastewater treatment.
Area of Science:
- Materials Science
- Environmental Science
- Chemical Engineering
Background:
- Dye contamination in aqueous solutions poses environmental challenges.
- Development of cost-effective and sustainable adsorbents is crucial for water remediation.
Purpose of the Study:
- To fabricate an eco-friendly adsorbent for dye removal.
- To investigate the adsorption performance of polyaniline-coated cellulose sponge (PANI-CS) for methyl orange (MO).
Main Methods:
- Coating a reused cellulose sponge (CS) with polyaniline (PANI).
- Characterization using Scanning Electron Microscopy (SEM).
- Evaluation of adsorption capacity and percentage in batch and continuous modes.
Main Results:
- SEM confirmed successful PANI deposition on CS fibers with preserved porosity.
- PANI-CS achieved a high adsorption capacity of 308 mg/g for MO at pH 4.0.
- 84% MO removal was achieved in 20 min (batch mode); 59% removal in 5 min (continuous mode).
Conclusions:
- PANI-CS is a promising, inexpensive adsorbent for large-scale dye removal from aqueous media.
- The adsorbent exhibits efficient and rapid dye adsorption capabilities.
- The study highlights the potential of modified natural materials for environmental applications.
