Trametes suaveolens-derived biochar loaded on nanoscale zero-valent iron particles for the adsorption and reduction of Cr(VI)

The green reduction method uses pomegranate peel extract as a reducing agent to prepare nZVI on Trametes suaveolens biochar(T-BC/nZVI) carrier for the removal of hexavalent chromium in aqueous solution. effects several factors, including different ratios between m(CS) and m(Fe), initial Cr(VI) concentrations, pH, temperature, were evaluated. When dosage was 5 g/L at pH = 2 concentration 50 mg/L, efficiency approximately 100% within 90 min. T-BC/nZVI composites conforms quasi-secondary kinetics model, indicating that dominated by chemisorption. Through variety technologies (SEM, XRD, FTIR, BET, XPS), it confirmed successfully loaded surface T-BC effectively removed chromium. mechanisms involve multiple processes (adsorption, reduction, co-precipitation).