10.22034/ijnd.2023.1988055.2225

Fused nanogranular polyaniline-sawdust (Cocos nucifera) composite for Lead adsorption application

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  • Shalaine Sana Tatu-Qassim1,
  • Marvin Ali Maulion2,
  • Rey Ralph Herrera Virtucio2,
  • Joel Gonzales Fernando*2,
  1. Health Physics Research Section, Atomic Research Division, Philippine Nuclear Research Institute, Department of Science and Technology, Commonwealth Avenue, Diliman, Quezon City, 1101, Philippines.
  2. Physics Department, Western Mindanao State University, Normal Road, Baliwasan, Zamboanga City, 7000, Philippines.
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Published in Issue 2024-03-03

How to Cite

Tatu-Qassim, S. S., Maulion, M. A., Virtucio, R. R. H., & Fernando, J. G. (2024). Fused nanogranular polyaniline-sawdust (Cocos nucifera) composite for Lead adsorption application. International Journal of Nano Dimension, 14(3 (July 2023). https://doi.org/10.22034/ijnd.2023.1988055.2225
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Abstract

The problem of heavy metal contamination in industrial effluents requires new and environment-friendly agents for wastewater treatment. In this study, we developed fused nanogranular polyaniline-sawdust (PANI/SD) composites for lead ion removal through the adsorption process. To prevent the aggregation of polyaniline (PANI), coconut (Cocos nucifera) sawdust (SD), an agricultural waste, was used as a substrate via in situ chemical polymerization in varied sawdust-to-aniline ratios. The scanning electron micrographs (SEM) of the obtained PANI/SD composites revealed a nanogranular structure that indicated the complete coating of polyaniline on sawdust. Furthermore, the PANI/SD composites were verified to be in the emeraldine oxidation state through Fourier-Transform Infrared (FT-IR) spectroscopy. Among the formulations studied, the PANI/SD composite with a sawdust-to-aniline ratio of 1.2 g/mL was found to have the highest adsorption capacity of 738.9 mg/g. This study presents the promising potential of PANI/SD as a novel and cost-effective adsorbent material to remove lead from contaminated water.

Keywords

  • Adsorption,
  • Lead,
  • Polyaniline,
  • sawdust,
  • wastewater.
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