Development and Material Characterization of Chitosan-Coated Tissue Paper Pulp Waste as a Bio-Based Adsorbent for Cupric Ion Removal

Panida Charnkeitkong; Siriporn Sripiboon

doi:10.4028/p-BxTq76

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Development and Material Characterization of Chitosan-Coated Tissue Paper Pulp Waste as a Bio-Based Adsorbent for Cupric Ion Removal
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Development and Material Characterization of Chitosan-Coated Tissue Paper Pulp Waste as a Bio-Based Adsorbent for Cupric Ion Removal

Abstract:

Copper is a valuable industrial metal, extensively utilized in its pure form due to its excellent electrical and thermal conductivities. It plays a vital role in a wide range of applications, including refrigeration systems, coin and jewelry manufacturing, strain gauges, thermocouples, and more. However, in its ionic form, copper (particularly as Cu²⁺) can be toxic, especially when present in industrial effluents and wastewater streams. Therefore, the effective adsorption of cupric ions (Cu²⁺) is a critical environmental and technological concern addressed in this study. From this work, tissue paper pulp waste, chitosan derived from frozen food industry byproducts, and chitosan-coated pulp waste were developed as modified adsorbents for Cu²⁺ removal from aqueous solutions. Brunauer–Emmett–Teller (BET) surface area analysis revealed that chitosan exhibited the highest porosity, while the chitosan-coated pulp provided a well-balanced structure with enhanced functional properties. Under controlled experimental conditions, all three materials demonstrated significant Cu²⁺ removal efficiency, with the chitosan-coated pulp slightly outperforming the others. These findings highlight the potential of chitosan-coated pulp waste as a low-cost, sustainable, and highly effective adsorbent for the remediation of heavy metal-contaminated wastewater.