SYNTHESIS AND CHARACTERIZATION STUDIES OF CMC/NCC NANO COMPOSITES DERIVED FROM TEXTILE WASTE FOR THE ADSORPTION OF LANTHANUM IONS FROM AQUEOUS SOLUTIONS
Articles > Article · 2025
Authors: Hasan Türkmen, Sabriye YUŞAN, Cem Gök
Materiali in tehnologije, Journal Indexed in SCI Expanded, International, WoS, 2025, vol 59, pp 601-619
Summary
This study investigated the adsorption efficiency of lanthanum (La) ions, a rare-earth element, using nanocrystalline cellulose (NCC)-reinforced carboxymethyl cellulose (CMC) biopolymers synthesized from textile waste. Microcrystalline cellulose (MCC) was derived via acid hydrolysis, followed by NCC synthesis through basic reaction. The characterization was performed using FT-IR, SEM, XPS and XRD analyses. Key adsorption parameters, including pH, initial concentration, agitation time, and temperature, were optimized. The adsorption process of La(III) ions onto the CMC/NCC nanocomposite follows the Langmuir isotherm model with a high adsorption capacity of 38.13 mg/g, indicating monolayer adsorption, while thermodynamic analysis reveals the process is endothermic, spontaneous at higher temperatures, and predominantly governed by physicochemical interactions. The CMC-NCC biopolymer presents an economical, effective, and eco-friendly alternative for lanthanum removal from aqueous solutions.