Investigations of Diclofenac Sorption on Intact and Modified <i>Chlorella vulgaris</i> Biomass with pH-Switchable Desorption.

ABSTRACT: The growing interest in sustainable and structurally diverse sorbent materials has intensified the search for effective biosorbents that can complement or replace conventional adsorbents. This work presents the potential use of Chlorella vulgaris dried biomass and its modifications (ultrasound-treated, lipid-extracted, and combined forms) for diclofenac (DCF) sorption from aqueous solutions. It was demonstrated that sorption efficiency significantly depends on the solution's pH. Lowering the pH from 6 to 2 increases the sorption from 5% to 68%, while 99% desorption occurred at pH 9. The adsorption isotherms for intact biomass and after lipid extraction (CV-E2) are best described by the Langmuir and Freundlich models; for ultrasonically treated biomass (CV-E1) by the Temkin model; an

SUBMITTER: Liakh I 

PROVIDER: S-EPMC12898283 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature