Parlayici, SerifePehlivan, Erol2025-02-102025-02-1020209786254090011https://hdl.handle.net/20.500.13091/9864This work investigates adsorption of Methylene Blue (MB) and Methyl Violet (MV) on nanoscale zero-valent iron-doped pappus of dandelion (nZVI-pD). MB and MV adsorption reached equilibrium within 60 min period for nZVI-pD. The effects of initial pH, a dosage of nZVI-pD, temperature, contact time, and the initial concentration of dyes were investigated during the equilibrium and kinetic studies. nZVI-pD's structure was investigated by FTIR and SEM microanalysis. The equilibrium adsorption data were declared by Langmuir, Freundlich, Scatchard and D-R isotherms. Under ideal conditions, Langmuir isotherm was applied to clarify the experimental adsorption. MB, and MV adsorption capacity of the nZVI-pD reached to 228.3 and 375.2 mg/g, respectively. The adsorption kinetic was obeyed pseudo-second-order reaction rate. Thermodynamic parameters including Delta G degrees, Delta H degrees and Delta S degrees had been determined and the interaction of dyes with nZVI-pD was seen as endothermic and spontaneous. nZVI-pD has claimed a chance as a novel biosorbent for MB and MV elimination from aqueous solutions.eninfo:eu-repo/semantics/closedAccessZero Valent IronDandelionAdsorption IsothermsMethylene BlueMethyl VioletConference Object