Physicochemical and Sorption Characteristics of Carbon Biochars Based on Lignin and Industrial Waste Magnetic Iron Dust

Magnetosensitive biochars were prepared with mechanochemical ball-milling of lignin and blast furnace dust further pyrolysis at 800 °C under an inert gas atmosphere. The physicochemical sorption characteristics the materials analyzed using several techniques: low-temperature nitrogen adsorption–desorption, X-ray powder diffraction, Raman spectroscopy, elemental analysis, potentiometric titration, thermal analysis. All synthesized biocarbons characterized by their specific surface areas (SBET) in range 290–330 m2/g microporous structures certain contribution mesopores total porosity. Equilibrium adsorption studies revealed potential applicability water remediation from hazardous organic substances modelled methylene blue (MB) dye. Generally, this study illustrates effective conversion sustainable waste into a functional carbon material.