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

Document Type : Reasearch Paper

Authors

• Shalaine Sana Tatu-Qassim ^{1, 2}
• Marvin Ali Maulion ¹
• Rey Ralph Herrera Virtucio ¹
• Joel Gonzales Fernando ¹

¹ Physics Department, Western Mindanao State University, Normal Road, Baliwasan, Zamboanga City, 7000, Philippines.

² Health Physics Research Section, Atomic Research Division, Philippine Nuclear Research Institute, Department of Science and Technology, Commonwealth Avenue, Diliman, Quezon City, 1101, Philippines.

10.22034/ijnd.2023.1988055.2225

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

20.1001.1.20088868.2023.14.3.2.5

Main Subjects

• Nanocomposite

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