MULTISCALE THEORETICAL INVESTIGATION OF HEAVY METAL AND ORGANIC POLLUTANT SORPTION ON FUNCTIONALIZED CELLULOSE DERIVATIVES

Аннотация

Water contamination by heavy metals (Pb²⁺, Cd²⁺, Ni²⁺), metalloid ions (As(III), As(V), Cr(VI)), and persistent organic pollutants (phenolic derivatives, pharmaceutical residues, dyes) remains a major environmental concern worldwide. Conventional water treatment methods are often insufficient to achieve both high efficiency and selectivity. In this context, biopolymeric sorbents based on modified cellulose offer significant advantages due to their biocompatibility, availability, and ease of functionalization. Dialdehyde cellulose grafted with thiosemicarbazide (DAC@TCH) and its thiol-functionalized derivative (DAC@TCH–SH) are particularly promising candidates for the selective binding of toxic metal ions and organic pollutants.