Abstract
The survey aimed to investigate the adsorption properties of cellulose-based materials derived from cereal by-products towards Ag+ ions in water solutions, and to shed light on the mechanism of adsorption. Cellulose was isolated from rice and einkorn husks using alkali and bleaching treatments. Untreated einkorn husks and commercial cellulose served as reference samples. Characterization techniques included XRD, FTIR, SEM, and low-temperature nitrogen adsorption, with surface elemental composition analyzed by XPS. The study examined how contact time, initial silver ion concentration, pH, and temperature affected adsorption. The adsorption process was modeled using pseudo-second-order and Langmuir models, and thermodynamic parameters were evaluated. All materials showed potential as effective Ag+ ion adsorbents, indicating their suitability for creating silver-modified catalytic materials.
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